Quakes 2 x 6.x South America

Here is a “live view” of South America so you can watch anything “new” that develops:

Southern South America Hemispheric View

Southern South America Hemispheric View

South America with “clickable” areas for more details.

h/t to Adolfo Giurfa in https://chiefio.wordpress.com/2011/02/08/cell-phone-users-are-wussies/#comment-12726 (which I saw within minutes of his posting it but didn’t feel energetic enough to make a posting until now…)

What may be a bit hard to see unless you ‘zoom in’ is that there are two quakes almost on top of each other. A 6.8 and a 6.1 so here are the particulars:

Magnitude 6.8 – OFFSHORE BIO-BIO, CHILE
This event has been reviewed by a seismologist.Magnitude 6.8
Date-Time Friday, February 11, 2011 at 20:05:31 UTC
Friday, February 11, 2011 at 05:05:31 PM at epicenter
Time of Earthquake in other Time Zones
Location 36.479°S, 73.000°W
Depth 28 km (17.4 miles) set by location program
Region OFFSHORE BIO-BIO, CHILE
Distances 45 km (30 miles) N of Concepcion, Bio-Bio, Chile
80 km (50 miles) SW of Cauquenes, Maule, Chile
85 km (55 miles) WNW of Chillan, Bio-Bio, Chile
395 km (245 miles) SSW of SANTIAGO, Region Metropolitana, Chile
Location Uncertainty horizontal +/- 15 km (9.3 miles); depth fixed by location program
Parameters NST=312, Nph=312, Dmin=518.7 km, Rmss=1.48 sec, Gp= 50°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=8
Source USGS NEIC (WDCS-D)
Event ID usb0001cku

Magnitude 6.1 – BIO-BIO, CHILE
This event has been reviewed by a seismologist.Magnitude 6.1
Date-Time Saturday, February 12, 2011 at 01:17:03 UTC
Friday, February 11, 2011 at 10:17:03 PM at epicenter
Time of Earthquake in other Time Zones
Location 36.985°S, 73.077°W
Depth 14.8 km (9.2 miles) set by location program
Region BIO-BIO, CHILE
Distances 15 km (10 miles) S of Concepcion, Bio-Bio, Chile
85 km (50 miles) NW of Los Angeles, Bio-Bio, Chile
85 km (55 miles) NE of Lebu, Bio-Bio, Chile
450 km (280 miles) SSW of SANTIAGO, Region Metropolitana, Chile
Location Uncertainty horizontal +/- 21.7 km (13.5 miles); depth fixed by location program
Parameters NST=176, Nph=182, Dmin=470.9 km, Rmss=1.34 sec, Gp= 97°,
M-type=teleseismic moment magnitude (Mw), Version=A
Source USGS NEIC (WDCS-D)
Event ID usb0001csq

And a close up view:

Chile and Argentina Quakes

Chile and Argentina Quakes

Original Image with clickable details

The Rest of the World Earthquakes

Both Hemispheres

A view of Earthquakes from the South Pole

A view of Earthquakes from the South Pole

Original Image with Clickable Details

North Polar Earthquake Map

North Polar Earthquake Map

Original Image with Clickable Details

If you click the links to the originals you can not only ‘click through’ to any given area or quake, but by clicking on the little blue diamonds you can rotate the globe to different points of view. It’s kind of fun…

North America

North America and Mid Atlantic Ridge Quake Map

North America and Mid Atlantic Ridge Quake Map

Original with clickable details

California Map

Action Closer to Me

As I live in California, it makes it easier for me if I keep them in the list where I can see what’s shaking near me.

Current quake map in California

Current quake map in California

Original Image, with captions and description. The original is interactive with clickable regions for ‘close ups’.

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About E.M.Smith

A technical managerial sort interested in things from Stonehenge to computer science. My present "hot buttons' are the mythology of Climate Change and ancient metrology; but things change...
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29 Responses to Quakes 2 x 6.x South America

  1. Pascvaks says:

    I still think that we’re looking at things upside down. An historic problem of interpretation from before we discovered that things were moving and which way things were moving. Everybody knows, intuitively, that because of gravity things fall down, NOT up. That continental drift is toward the the real South Pole (down) NOT the North Pole (up). Ergo.. the North Pole is actually the South Pole and the South Pole is actually the North Pole. When we look at the World that way everything makes sense. That’s why there are more Earthquakes in the Northern Hemisphere (which is really the Southern Hemisphere) and less in the Southern Hemisphere (which is actually the Northern Hemisphere). I think it’s about time we correct this Great Mistake so future generations are NOT befuddled by this issue. (Ahhh.. anyone else think we ought to write our members of Congress?)

  2. The problem in Concepcion has been studied and forecasted:

    It was analyzed by our friend Vuk:
    http://www.vukcevic.talktalk.net/LFC13.htm

  3. @Pascvaks:

    That problem is being fixed by Nature, so, in the future there won´t be any confusion :-)
    http://www.vukcevic.talktalk.net/MF.htm

  4. Pascvaks says:

    Ref – Adolfo Giurfa, 12 February 2011 at 6:55 am

    Hummmm…

    Ahhhhhh….

    Nope! A mistake is a mistake! North is South and South is North. Gravity pulls, it don’t push. Water and continents flow downhill, not uphill. Ain’t no time like the present to fix this, since science is kinda’ flakey and the sides regarding Climate, government spending, astrology (and human psychology) are sorta in our favor.

  5. Anyway the chilean friends won´t complain as that area is actually growing up and extending further westwards, however with a little rock and roll :-)

  6. vukcevic says:

    DEMETER Satellite Observations of Particle Burst Prior to
    Chile Earthquake

    Click to access 1011.3592v1.pdf

  7. Pascvaks says:

    Ref – Vukcevic, 12 February 2011 at 10:41 am

    Help!!

    What are we reading here? OK, they detected something. What’s the plain English implied explaination for the cause? An Intra/Inter Galactic Gravity Wave? Or something more down to Earth, or under the surface?

  8. @Pascvaks

    Go to your kitchen, turn on your blender, then you will see force in action, caused of course by electricity from the mains, that force=gravity.
    Then go to the nearest hydraulic power plant; there you´ll see water falling (gravity=force) being turned into electricity….
    BTW, all these days we have been watching on TV all that Egypt issue, and many times, also, a flag of the MBH showing two crossing swords, well, these are the representation of the the swords of the two IMAMS (Iman=Magnet in Spanish- Remember the 11 centuries of the arabs in Spain?), well, and again: those two imams guard the Khabba, an iron magnetic meteorite at the Mecca.
    You can find a lot of analogies, in every culture, regarding THE FORCE which runs the Universe. It is up to us, to understand them as the fundamental polarity or….give it “the ten thousand names of God”and be as confused as the global warmers´community. :-)
    Vuk: Something for you:
    http://www.hasslberger.com/tecno/tecno_8.htm

  9. E.M.Smith says:

    @Pascvaks:

    As gravity acts toward the center of the earth, neither North nor South, and as North and South are themselves arbitrary terms; I see no reason for any change of them.

    You can arbitrarily lable them anything you want and it doesn’t change anything. There is no “North/South” vs “up / down” corrolation. They are orthogonal.

    Also, over all of geologic time, continents drift back and forth and around the planet. No net ‘direction’ or they would all be jammed up there already.

    So there is gravity. It pulls to the center of a body. There is convection (heat driven currents) in opposition. When it reaches the top of the pile is causes outflowing pressures in all directions (thus drift). There is planet spin that puts rotational forces into those currents.

    Now you can put on top of that magnetic and electrical forces as well, but until you have “done the math” and have the exact relative magnetudes; you can not say if gravity / convection or magnetic / electrical dominates.

    IMHO, gravity is pretty strong at the surface of the planet and electrical is pretty weak. (We don’t see leaves floating about on thier electrical repulsion…) but I’m open to the idea that a Birkland Current at the poles can impact weather systems (and maybe even that it can impact our magenetic field, though that is more speculative and lacking some evidence).

    So while I don’t “poo poo” the Electric Universe folks nor the potential for significant magnetic impacts: I’m still waiting for the proof. And a nice theory, no matter how pretty, is not proof. It’s not even evidence.

    IMHO, Vukcevic is well down the trail of evidence, and getting mightly close to some proof. But even there we’ve got a hurdle to get over to displace the existing paradigm. If his predictions continue to track while the other model fails, well…

  10. E.M.Smith says:

    Looks like another 6.x in Tonga too:

    Magnitude 6.1 – TONGA
    This event has been reviewed by a seismologist.Magnitude 6.1
    Date-Time Saturday, February 12, 2011 at 17:57:56 UTC
    Sunday, February 13, 2011 at 06:57:56 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 20.785°S, 175.589°W
    Depth 81 km (50.3 miles)
    Region TONGA
    Distances 55 km (35 miles) NW of NUKU`ALOFA, Tonga
    290 km (180 miles) SW of Neiafu, Tonga
    325 km (200 miles) E of Ndoi Island, Fiji
    2010 km (1250 miles) NNE of Auckland, New Zealand
    Location Uncertainty horizontal +/- 15.7 km (9.8 miles); depth +/- 1.1 km (0.7 miles)
    Parameters NST=457, Nph=476, Dmin=862.7 km, Rmss=0.93 sec, Gp= 32°,
    M-type=teleseismic moment magnitude (Mw), Version=8
    Source USGS NEIC (WDCS-D)
    Event ID usb0001d15

  11. P.G. Sharrow says:

    E.M. have you looked at this pdf that vukcevic linked to?

    Click to access 1011.3592v1.pdf

    The Chinese have some observations that are very interesting as quake precursers. pg

  12. E.M.Smith says:

    @P.G. Sharrow:

    Yes, it’s an interesting paper…. but I thought it was already known that quakes emitted EM pulses? Thought to be related to piezoelectric effects from rock deformaion. (Same effect used with the quartz crystals that give tuning / clocks to just about everything on the planet electronic… and that were once used in some record player stylus encoders IIRC along with various ‘crystal headsets’ and microphones and…)

    So while It’s “way cool” to have a satellite confirm the same stuff, I thought it was already kind of known? Or is it the 2 week lead time that’s the ‘cool bit’?

  13. @E.M.Smith
    @P.G. Sharrow
    There have been FOUR MORE EARTHQUAKES in the same area! one of 6.0 Richter.
    It is not the PIEZO-ELECTRIC phenomena, it´s the other way around. There is no distiction to be made in between Gravity and EMF, both are part of the same EMF. An alternate current (a Birkeland like current) has alternating phases separated by which is called the “phase angle”( in the mains´current this is 90°, this is why the equation for power adds sin and cos using 1.414,i.e.:sin 45°+cos 135°).
    When an earthquake is about to happen gravity acceleration changes and it can be now easily detected with an Ipod App:
    http://itunes.apple.com/us/app/gravity-meter/id358324984?mt=8

  14. P.G. Sharrow says:

    2 weeks is a bit better then 7 minuets and you could construct a vlf reciever to monitor a local area. pg

  15. These relate to the same phenomena:

    Click to access radio_astro.pdf

  16. E.M.Smith says:

    OK, so the “hot bits” are that it’s way early prior to the main event (but doesn’t show up for the minor aftershocks?) making it a very useful Early Warning Device. And a theory that EMF is Gravity….

    While I don’t toss out the “EMF is Gravity” thesis out of hand ( as I’m fond of a related idea…) there isn’t a lot of proof for it in this quake. Some electrical phenomenon near the time of a quake and an electronic sensor that reacts to it seem a bit, er, lite….

    Sidebar: My “related idea” is that all matter is made up of photons. We are literally ‘condensed light’. As a photon slows down and gets agglomerated with a bunch of other photons we get “particles” like the Electron, Proton, etc. That is also why we can get photons (often energetic gamma ray photons) out of particle breakdowns. When “alone” the wave function of the photon lets it move ‘at the speed of light’ but when in the very close company of others they interfere such that they can not move as fast / easily. We have to pump in extraordinary energy to move it very fast as that energy is being captured by the ‘photon proximity effect’ and turned into more mass. Basically, mass is a byproduct of photons being very very close to each other to the point of sticking. Thus so is gravity. One would expect that as photons break free of bondage (via heating or via nuclear processes or via other EMF effects) they would fly off with great speed and low mass. The rest mass of the ‘particles’ left behind would look nearly unchanged other than in extraordinarily energetic events such as atomic decay.

    If there is any truth to that notion, a “photon burst” prior to a quake would indicate some energetic release from the rocks prior to their “break”. The question would then become: Was the stress leading up to the break / release the cause of the photons / EMF (as radio waves are just very long wavelength photons…) or was some other process causing both the photon emmission and the break / release? In particular, I could see a focusing of external energy causing both a photon burst AND a heating / fracture initiation event.

    All very speculative, but related to your EMF = Gravity thesis (in that I see gravity as a result of EMF-photons being ‘condensed’ into matter particles…) though I don’t see how to tie it to any particular external causal event at the moment.

    BTW, I’m not the only one contemplating “condensed photons”:

    http://demopedia.democraticunderground.com/discuss/duboard.php?az=view_all&address=228×73502

    ScienceDaily (Nov. 24, 2010) — Physicists from the University of Bonn have developed a completely new source of light, a so-called Bose-Einstein condensate consisting of photons. Until recently, expert had thought this impossible. This method may potentially be suitable for designing novel light sources resembling lasers that work in the x-ray range. Among other applications, they might allow building more powerful computer chips.

    By cooling Rubidium atoms deeply and concentrating a sufficient number of them in a compact space, they suddenly become indistinguishable. They behave like a single huge “super particle.” Physicists call this a Bose-Einstein condensate.

    For “light particles,” or photons, this should also work. Unfortunately, this idea faces a fundamental problem. When photons are “cooled down,” they disappear. Until a few months ago, it seemed impossible to cool light while concentrating it at the same time. The Bonn physicists Jan Klärs, Julian Schmitt, Dr. Frank Vewinger, and Professor Dr. Martin Weitz have, however, succeeded in doing this — a minor sensation.

    The original article:

    http://www.sciencedaily.com/releases/2010/11/101124143407.htm

    A condensate made of light

    The Bonn physicists then increased the quantity of photons between the mirrors by exciting the pigment solution using a laser. This allowed them to concentrate the cooled-off light particles so strongly that they condensed into a “super-photon.”

    This photonic Bose-Einstein condensate is a completely new source of light that has characteristics resembling lasers. But compared to lasers, they have a decisive advantage, “We are currently not capable of producing lasers that generate very short-wave light — i.e. in the UV or X-ray range,” explained Jan Klärs. “With a photonic Bose-Einstein condensate this should, however, be possible.”

    So we can make a “condensed super photon”. The question now becomes “If you make a very very big one, and perhaps under some particular circumstances or other, does it turn into another type of particle?” Or, more directly: Can a photon Bose-Einstein condensate transform into a particle Bose-Einstein condensate and thus when warmed return as matter?” If the answer to THAT is yes, the next step is “can it happen under other temperature regimes?” i.e. is it happening all the time and is this the actual state of matter / photons in our daily lives?

    And once you have that kind of thing happening, all sorts of EMF / Gravity / Mass / Matter / light interactions become much more interesting…

    But for now, the stuff of science fiction and speculation… ( It would have been fun to be a theoretical physicist, but when I looked at it they were wandering off into string theory and that just looked bogus to me. Didn’t see why I ought to spend 6 years learning crap I’d have to throw out…)

    At any rate, I’m off to the garden for a bit of afternoon photon absorption ;-)

  17. H.R. says:

    @E.M.
    “At any rate, I’m off to the garden for a bit of afternoon photon absorption ;-)”

    Won’t that increase your mass? ;o)

  18. tckev says:

    As your Web page picture shows there is plenty of electrical activity near an active volcano, so is it surprising that other geological disturbances would cause other e/m effects?

    National Geographic magazine have some spectacular pictures of lightening around the last Japanese volcano eruption at –

    http://news.nationalgeographic.com/news/2011/01/pictures/110128-james-bond-volcano-eruption-lightning-japan-science-kirishima/

  19. George says:

    Just now another 6+. But I believe these will continue for some time after the huge subduction zone quake we saw last year. In fact, I wouldn’t be surprised to see another of nearly the same size as last year’s quake a bit North or South of last year’s.

  20. E.M.Smith says:

    Magnitude 6.6 – OFFSHORE MAULE, CHILE
    This event has been reviewed by a seismologist.Magnitude 6.6
    Date-Time Monday, February 14, 2011 at 03:40:10 UTC
    Monday, February 14, 2011 at 12:40:10 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 35.433°S, 72.739°W
    Depth 25.4 km (15.8 miles)
    Region OFFSHORE MAULE, CHILE
    Distances 70 km (45 miles) NNW of Cauquenes, Maule, Chile
    95 km (60 miles) W of Talca, Maule, Chile
    140 km (90 miles) NNW of Chillan, Bio-Bio, Chile
    290 km (180 miles) SW of SANTIAGO, Region Metropolitana, Chile
    Location Uncertainty horizontal +/- 20.9 km (13.0 miles); depth +/- 0.4 km (0.2 miles)
    Parameters NST=263, Nph=266, Dmin=620 km, Rmss=1.06 sec, Gp= 61°,
    M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=9
    Source USGS NEIC (WDCS-D)
    Event ID usb0001dqf

    And the prior 6.0 one:

    Magnitude 6.0 – OFFSHORE BIO-BIO, CHILE
    This event has been reviewed by a seismologist.Magnitude 6.0
    Date-Time Sunday, February 13, 2011 at 10:35:06 UTC
    Sunday, February 13, 2011 at 07:35:06 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 36.623°S, 73.165°W
    Depth 13.3 km (8.3 miles)
    Region OFFSHORE BIO-BIO, CHILE
    Distances 25 km (15 miles) NNW of Concepcion, Bio-Bio, Chile
    95 km (60 miles) W of Chillan, Bio-Bio, Chile
    105 km (65 miles) SW of Cauquenes, Maule, Chile
    420 km (260 miles) SSW of SANTIAGO, Region Metropolitana, Chile
    Location Uncertainty horizontal +/- 21.1 km (13.1 miles); depth +/- 0.4 km (0.2 miles)
    Parameters NST=234, Nph=240, Dmin=509.8 km, Rmss=1.11 sec, Gp= 97°,
    M-type=teleseismic moment magnitude (Mw), Version=8
    Source USGS NEIC (WDCS-D)
    Event ID usb0001dh7

  21. Pascvaks says:

    “Let there be light!”

    Have a feeling that before this command there was an awful lot of gravity somewhere.

  22. No joke those earthquakes in Chile….

  23. Coincident with C solar flares?

  24. E.M.Smith says:

    Hmmm… Not “beyond the ordinary” but still, a bit large for run of the mill back East. IIRC, quakes back there tend to be felt more sharply than out here ( type of rock?). At any rate, folks ought to have felt this one:

    Magnitude 4.3 – ARKANSAS

    This event has been reviewed by a seismologist.Magnitude 4.3
    Date-Time Friday, February 18, 2011 at 08:13:35 UTC
    Friday, February 18, 2011 at 02:13:35 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 35.271°N, 92.377°W
    Depth 6.3 km (3.9 miles)
    Region ARKANSAS
    Distances 5 km (3 miles) NNE (13°) from Greenbrier, AR
    7 km (4 miles) SE (140°) from Twin Groves, AR
    7 km (4 miles) SSW (213°) from Guy, AR
    60 km (37 miles) N (356°) from Little Rock, AR
    419 km (260 miles) SSW (208°) from St. Louis, MO
    Location Uncertainty horizontal +/- 0.5 km (0.3 miles); depth +/- 0.4 km (0.2 miles)
    Parameters NST= 16, Nph= 20, Dmin=3 km, Rmss=0.2 sec, Gp= 76°,
    M-type=”Nuttli” surface wave magnitude (mbLg), Version=C
    Source Cooperative New Madrid Seismic Network
    Event ID nm1182

  25. P.G. Sharrow says:

    That Arkansas quake spot is very curious. Hundreds of small quakes in a very small area over the last few months. Around 5 to 6 miles depth. The last few have been larger. These are on the north side of a old fault line that runs from Oklahoma to Tennessee. pg

  26. @E.M.Smith
    No jokes: 16 earthquakes in the last few days:
    M 5.2, offshore Valparaiso, Chile

    Date: Friday, February 18, 2011 17:01:04 UTC
    Friday, February 18, 2011 02:01:04 PM at epicenter
    Depth: 45.00 km (27.96 mi)

  27. E.M.Smith says:

    Well, not keen on this one down where my action originates:

    Magnitude 5.1 – BAJA CALIFORNIA, MEXICO

    This event has been reviewed by a seismologist.Magnitude 5.1
    Date-Time Friday, February 18, 2011 at 17:47:35 UTC
    Friday, February 18, 2011 at 09:47:35 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 32.047°N, 115.062°W
    Depth 15 km (9.3 miles) (poorly constrained)
    Region BAJA CALIFORNIA, MEXICO
    Distances 27 km (17 miles) S (171°) from Guadalupe Victoria, Baja California, Mexico
    53 km (33 miles) SSW (210°) from San Luis R�o Colorado, Sonora, Mexico
    57 km (36 miles) SSW (209°) from San Luis, AZ
    192 km (119 miles) ESE (106°) from Tijuana, Baja California, Mexico
    Location Uncertainty horizontal +/- 4 km (2.5 miles); depth +/- 31.6 km (19.6 miles)
    Parameters Nph= 12, Dmin=47 km, Rmss=0.26 sec, Gp=270°,
    M-type=regional moment magnitude (Mw), Version=8
    Source California Integrated Seismic Net:
    USGS Caltech CGS UCB UCSD UNR
    Event ID ci14937372

    Then up in Alaska we have a new one:

    Magnitude 4.7 – RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA
    seismologist.Magnitude 4.7
    Date-Time Saturday, February 19, 2011 at 03:59:11 UTC
    Friday, February 18, 2011 at 05:59:11 PM at epicenter
    Location 52.081°N, 178.188°E
    Depth 146 km (90.7 miles)
    Region RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA
    Distances 349 km (217 miles) ESE (102°) from Attu Station, AK
    1321 km (821 miles) E (87°) from Petropavlovsk-Kamchatskiy, Russia
    3522 km (2189 miles) NE (47°) from TOKYO, Japan
    Location Uncertainty horizontal +/- 27.1 km (16.8 miles); depth +/- 7.3 km (4.5 miles)
    Parameters NST=172, Nph=175, Dmin=110.2 km, Rmss=0.74 sec, Gp=133°,
    M-type=body wave magnitude (Mb), Version=8
    Source U.S. Geological Survey, National Earthquake Information Center:
    World Data Center for Seismology, Denver
    Event ID usb0001h2g

    I know, I know… more of them in Chile than here and bigger too. Even bigger ones near Japan / Russia and south Asia.

    But when both ends of my side of The Ring are moving I just feel a little worried…

    Gee… isn’t it just about a full moon now?…

  28. E.M.Smith says:

    6.4 off of Fiji, South America getting several 5.x and California breaking out in blue pox…

    Magnitude 6.4 – SOUTH OF THE FIJI ISLANDS
    2011 February 21 10:57:53 UTC

    Versión en Español
    Details
    Maps
    Scientific & Technical
    Tsunami
    Earthquake Details
    This event has been reviewed by a seismologist.Magnitude 6.4
    Date-Time Monday, February 21, 2011 at 10:57:53 UTC
    Monday, February 21, 2011 at 10:57:53 PM at epicenter
    Time of Earthquake in other Time Zones
    Location 26.083°S, 178.439°E
    Depth 561.8 km (349.1 miles)
    Region SOUTH OF THE FIJI ISLANDS
    Distances 505 km (315 miles) NW of Raoul Island, Kermadec Islands
    620 km (385 miles) SE of Ceva-i-Ra, Fiji
    1245 km (770 miles) NNE of Auckland, New Zealand
    1725 km (1070 miles) NNE of WELLINGTON, New Zealand
    Location Uncertainty horizontal +/- 14.4 km (8.9 miles); depth +/- 0.8 km (0.5 miles)
    Parameters NST=778, Nph=798, Dmin=500.9 km, Rmss=0.9 sec, Gp= 11°,
    M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=7
    Source USGS NEIC (WDCS-D)
    Event ID usb0001i2j

  29. E.M.Smith says:

    Just his hour, a 6.3 in Christchurch:

    Magnitude 6.3 – SOUTH ISLAND OF NEW ZEALAND

    This event has been reviewed by a seismologist.Magnitude 6.3
    Date-Time Monday, February 21, 2011 at 23:51:43 UTC
    Tuesday, February 22, 2011 at 12:51:43 PM at epicenter
    Time of Earthquake in other Time Zones
    Location 43.600°S, 172.710°E
    Depth 5 km (3.1 miles)
    Region SOUTH ISLAND OF NEW ZEALAND
    Distances NEAR Christchurch, New Zealand
    225 km (140 miles) SSE of Westport, New Zealand
    305 km (190 miles) SSW of WELLINGTON, New Zealand
    310 km (190 miles) NE of Dunedin, New Zealand
    Location Uncertainty horizontal +/- 12.2 km (7.6 miles); depth +/- 0.6 km (0.4 miles)
    Parameters Nph= 0, Dmin=0 km, Rmss=0.98 sec, Gp= 0,
    M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=D
    Source Institute of Geological and Nuclear Sciences, Lower Hutt, New Zealand
    Event ID usb0001igm

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