Quakes – None in particular

It has just been a while…

So I figures I’d put up another quake posting. The USGS has gone to a new “interactive” style of map and these links are flagged as obsolescent (and to be discontinued) so at some point this will just stop working ( why I had been ramping down these postings, though I’ve not figured a decent way to embed the new maps).

California is being a bit active, but the 2 week total is just 344. Likely the start of a new ramp up. I get interested when the total is near 400 and very interested when it is over 400, but that’s by definition a few days to 2 weeks into it.

New Zealand is having volcanoes. Yes, 2 of them.

“Stuff” is just being fairly interesting right now… but no Big One to hang your hat on.

Global Views

30 Days:

30 Day Global View

30 Day Global View

Recent:

Quakes Last 7 Days Live

Quakes Last 7 Days Live

Northern Hemisphere

North Polar Earthquake Map

North Polar Earthquake Map

Original Image with Clickable Details

North America

Quakes North America Live Map

Quakes North America Live Map

Original Image

Southern Hemisphere

A view of Earthquakes from the South Pole

A view of Earthquakes from the South Pole

Original Image with Clickable Details

Asia and Russia

Asia Quake Map

Asia Quake Map

Original Image with clickable areas

Australia / New Zealand

This is a live map of the Australia / Indonesia / New Zealand area:

Australia / Indonesia / New Zealand Quake Map

Australia / Indonesia / New Zealand Quake Map

Original with clickable regions to zoom in

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.

Here is an alternative view of things with the fault lines highlighted:

California Quakes with fault lines

California Quakes with fault lines

Original Image
en.vedur.is/earthquakes-and-volcanism/articles/nr/2180

Map of Plates

You can see it is where plates collide here:

Plates Of The World

Plates Of The World

Original Image, and with other language options.

Some Volcano Stuff

This page:

http://pangea.stanford.edu/~dsinnett/Pages/Links.html has a nice collection of links to volcano monitor pages. Just click the pictures for the different volcano observatories.

The Smithsonian page:

http://www.volcano.si.edu/reports/usgs/

USGS Page listing recent major quakes:

http://earthquake.usgs.gov/earthquakes/eqinthenews/

Subscribe to feed

About these ads

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...
This entry was posted in Earth Sciences and tagged , . Bookmark the permalink.

24 Responses to Quakes – None in particular

  1. adolfogiurfa says:

    @E.M.: These guys are making predictions:

    http://ievpc.org/index.html

  2. BobN says:

    Here are some links I use to track things.
    This one tracks events of all types

    http://hisz.rsoe.hu/alertmap/index2.php

    This one tracks Yellowstone, I get nervous when it gets active.

    http://www.isthisthingon.org/Yellowstone/daythumbs.php

    This tracks radiation, but I’m not sure I believe it,

    http://www.radiationnetwork.com/

    Another live earthquake map

    http://quakes.globalincidentmap.com/

    Satellite maps

    http://www.switchbanks.com.au/satellite.html

    USGS Link

    http://earthquake.usgs.gov/earthquakes/?source=sitenav

    Hope California doesn’t start swarming with earthquakes!

  3. Scott Finegan says:

    I only follow your earthquake postings. This is the first time I have noticed quakes on the antarctic continent.
    How long before a large piece of ice breaks loose?
    Does anyone know how common quakes are on the antarctic continent (are they rare)?

  4. Pascvaks says:

    You know, if the Ozzie’s and the Kiwi’s would stop screwing around things would be pretty nice. There has to be a way to stop them from coming up here and ruining the neighborhood. CO2 ain’t the problem it’s those uppity Downunders that are the BIG problem. They won’t be satisfied until there’s just one Super Continent, and when the get it, just you watch, they’ll be the first to get bored and leave to go back down South. Convict Celts are pushy people;-)

  5. LG says:

    ChiefIO,
    from daily eyeballing the Norther and Southern Hemisphere maps, it appears to me 2/3 to 3/4 of quakes represented occur in the NH.
    Is that a mirage ?

  6. E.M.Smith says:

    Interesting pattern on the California side of North America. Modest sized quakes both “above” and “below” it. The ones off the coast of Mexico often seem to propagate northward. It looks like the prior stress relief around the rest of the Pacific Plate is finally showing up here. (Or maybe it is just a random pattern…)

    2012 August 09 02:34:41 UTC
    Earthquake Details
    This event has been reviewed by a seismologist.Magnitude 5.6
    Date-Time Thursday, August 09, 2012 at 02:34:41 UTC
    Wednesday, August 08, 2012 at 07:34:41 PM at epicenter
    Time of Earthquake in other Time Zones
    Location 19.902°N, 109.140°W
    Depth 9.6 km (6.0 miles)
    Region REVILLA GIGEDO ISLANDS REGION
    Distances 241 km (149 miles) NE of Socorro Island, Mexico
    337 km (209 miles) SSE of Cabo San Lucas, Mexico
    350 km (217 miles) S of San Jose del Cabo, Mexico
    405 km (251 miles) W of Puerto Vallarta, Mexico
    Location Uncertainty horizontal +/- 18.5 km (11.5 miles); depth +/- 3.9 km (2.4 miles)
    Parameters NST=326, Nph=333, Dmin=833.8 km, Rmss=1.55 sec, Gp=173°,
    M-type=regional moment magnitude (Mw), Version=B
    Source Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
    Event ID usb000bsqa

    Magnitude 4.9 – OFF THE COAST OF OREGON

    2012 August 08 17:45:33 UTC

    Earthquake Details
    This event has been reviewed by a seismologist.Magnitude 4.9
    Date-Time Wednesday, August 08, 2012 at 17:45:33 UTC
    Wednesday, August 08, 2012 at 08:45:33 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 44.431°N, 128.639°W
    Depth 10 km (6.2 miles)
    Region OFF THE COAST OF OREGON
    Distances 363 km (225 miles) W of Waldport, Oregon
    374 km (232 miles) WNW of Coos Bay, Oregon
    425 km (264 miles) W of Dallas, Oregon
    427 km (265 miles) W of Corvallis, Oregon
    Location Uncertainty horizontal +/- 17.1 km (10.6 miles); depth +/- 2.7 km (1.7 miles)
    Parameters NST=325, Nph=332, Dmin=388.5 km, Rmss=1.75 sec, Gp=166°,
    M-type=body wave magnitude (Mb), Version=G
    Source Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
    Event ID usb000bs51

    (part of a set of 2 stacked almost on top of each other in the Cascadia spreading zone. There also is an interesting “checkerboard” of little yellow dots over the American West / Rockies.

    The number of quakes in California in the last 2 weeks isn’t all that high, but the size of each is a bit larger and the pattern just looks more like “something is up”. Can’t define it better than that. It’s just “not the usual slow creep / release” look. A bit more “inland scattering” and a few larger sized ones. Especially those Cascadia and Mexican offshore ones on the spreading zones

    The whole Indonesia arc is also covered in dots.

    @BobN:

    Thanks! I’ll take a look.

    @Pascvaks:

    I think the Australian continent has been separated from the rest of the world that it’s not going to be moving back north any time soon ;-)

    @Scott Finegan:

    Ice doesn’t break off due to quakes. It breaks off when the sheet has floated out over the water enough for tidal forces to break off chunks. The stuff grounded on land is prone to flowing under pressure, so a little shaking can, at most, put some cracks in it that just ‘heal’ under continued flow pressures.

    Antarctica gets quakes too. Not as many as other places (mostly due to the pressures being fairly mild in that area with mid ocean ridge spreading mostly pushing east / west on the Pacific and Atlantic areas). There’s also subduction under Alaska and some spreading in an arc around the Arctic Circle. Look at that “map of plates” at the bottom of the posting. Notice that Antarctica is surrounded by a spreading zone? It has fairly balanced pressures around the edges. All the subduction / destruction happening ‘elsewhere’ from that spreading (see area around the Pacific Plate for example…)

    So it gets quakes, but more like the middle of North America or Siberia gets quakes. A stable mid continent area gets some kinds of block thrust going on and some volcanic activity, but just not anywhere near like that at an active subduction zone. If we start getting a lot of them it would be of interest. The occasional 4 or 5 scale event isn’t a surprise.

    California just picked up a 4.x off the Y area where the Cascadia comes ashore:

    Magnitude 4.3 – OFFSHORE NORTHERN CALIFORNIA

    2012 August 09 15:24:24 UTC
    hnical
    Tsunami
    Earthquake Details
    This is a computer-generated message — this event has not yet been reviewed by a seismologist.Magnitude 4.3
    Date-Time Thursday, August 09, 2012 at 15:24:24 UTC
    Thursday, August 09, 2012 at 08:24:24 AM at epicenter
    Location 40.757°N, 125.217°W
    Depth 2.5 km (1.6 miles) (poorly constrained)
    Region OFFSHORE NORTHERN CALIFORNIA
    Distances 83 km (52 miles) WNW (284°) from Ferndale, CA
    85 km (53 miles) W (272°) from Humboldt Hill, CA
    87 km (54 miles) W (270°) from Bayview, CA
    89 km (55 miles) W (268°) from Eureka, CA
    404 km (251 miles) NW (309°) from Sacramento, CA
    Location Uncertainty horizontal +/- 1.6 km (1.0 miles); depth +/- 29.7 km (18.5 miles)
    Parameters Nph=126, Dmin=81 km, Rmss=0.36 sec, Gp=238°,
    M-type=regional moment magnitude (Mw), Version=4
    Source California Integrated Seismic Net:
    USGS Caltech CGS UCB UCSD UNR
    Event ID nc7182888

  7. E.M.Smith says:

    @LG:

    Not an illusion. More of the active areas are in the N.H. Look at the global 30 day graph at the very top. Where Africa slams into Europe and where India ran into Asia are above the equator. Where the Pacific Plate is being crammed under { Philippines, Japan, Kamchatca, Alutians, Alaska, Canada) and the Slip area along California are all in the N.H.

    The southern hemisphere gets the large relatively passive chunk of Antarctica along with the lower activity boundary where it runs into other plates. Places like that south Indian Ocean area where not much happens. The major S.H. activity is where the Pacific Plate is getting crammed into New Zealand on one side and South America on the other. Just not as much area / linear impact. The highly active Indonesia arc is right on the equator, so visually tends to be not attributed to the S.H.

    In short: You get land where the tectonic activity is smashing things together and most of that is in the N.H. right now. Large placid areas of sea bottom have spreading, but not a lot of interesting quakes going on. There’s lots of sea bottom in the S.H.

  8. Sandy McClintock says:

    Some friends from NZ check this site for up to the minute information

    http://www.geonet.org.nz/volcano/

  9. Jeff Dolan says:

    About 20 years ago, while going through a 3D visualization software course, it occurred to me that it would be an interesting exercise to plot earthquake data in the 3D “tank”. The University of Alaska / Geophysical Institute maintained a searchable database of Alaskan earthquake loci. After downloading the available data for Cook Inlet and converting the x,y and z units to feet, I displayed the profile of the north pacific subduction zone diving below Anchorage and the Cook Inlet. The image is a beautiful illustration of the subduction process with earthquake activity dying out at about the 110 mile depth due to the plastic nature of the rock at that depth and the magma returning to the surface in the volcanoes of the Aleutian Range.

    I saved the screen dump. This view is towards the north. The blue film on the upper surface is Cook Inlet.

  10. E.M.Smith says:

    Just had a 6.2 in the Aleutians:

    Magnitude 6.2 – FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

    2012 August 10 18:37:44 UTC

    Earthquake Details
    This event has been reviewed by a seismologist.Magnitude 6.2
    Date-Time Friday, August 10, 2012 at 18:37:44 UTC
    Friday, August 10, 2012 at 10:37:44 AM at epicenter
    Time of Earthquake in other Time Zones
    Location 52.695°N, 167.469°W
    Depth 19 km (11.8 miles)
    Region FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
    Distances 97 km (60 miles) ESE of Nikolski, Alaska
    1420 km (882 miles) SW of Anchorage, Alaska
    1452 km (902 miles) SW of Knik-Fairview, Alaska
    1591 km (988 miles) SE of Anadyr’, Russia
    Location Uncertainty horizontal +/- 13.1 km (8.1 miles); depth +/- 5.7 km (3.5 miles)
    Parameters NST=641, Nph=641, Dmin=99.1 km, Rmss=1.18 sec, Gp= 50°,
    M-type=regional moment magnitude (Mw), Version=6
    Source Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
    Event ID usb000buag

  11. E.M.Smith says:

    I don’t know why, but there is just something about that pattern on the USA West Coast that is disturbing. From the 6.x in the Aleutians to the chain of “mid sized” quakes from the tip of Baja to the Y at Cascadia ( in the context of Japan having had a ‘great quake’ and Japan / Cascadia having a ‘few years offset’ between them on Great Quakes).

    It just “feels like” not time to be near the Cascadia fault system. Or the Hayward / Calaveras system either.

    It’s just “wrong” somehow. Probably nothing. Probably just a pattern non-match to “normal” based on my lack of observation of the whole suite of choices. But it’s just too many “bigger” than usual. Fewer total, but more of them bigger squares. Like it is building toward an energy release.

    I’d admonish to “check all the quake gear” except I already did that a few months ago.

    Ah, well, life in Shaky City ;-)

    Wonder if there is an “average energy vs average number” of quakes metric? It’s what I’m seeing. Average energy being higher in relation to quake count…

    @Jeff Dolan:

    Nice image!

    @Sandy:

    Nice link, too!

  12. E.M.Smith says:

    Interesting pattern in the Northern Hemisphere. A 6.x in Alaska. Then a “double tap” of two 6.x quakes in Iran. Now it’s “moved on” at about the same latitude to a 6.x in China…

    I’ve seen these “triangular sets” before as we get symmetrical activity. Sometimes it is just a double (one on each side about 180 degrees) but often it is sets of three places about 120 degrees apart. Not exact, just ‘close enough’ to see. This one started off like a 180. Now we’ve got a ‘misplaced third’… Wonder if we get the symmetrical one in California…

    Magnitude 6.3 – XINJIANG-XIZANG BORDER REGION

    2012 August 12 10:47:06 UTC

    Earthquake Details

    This event has been reviewed by a seismologist.

    Magnitude 6.3
    Date-Time

    Sunday, August 12, 2012 at 10:47:06 UTC
    Sunday, August 12, 2012 at 06:47:06 PM at epicenter
    Time of Earthquake in other Time Zones

    Location 35.681°N, 82.516°E
    Depth 11 km (6.8 miles)
    Region XINJIANG-XIZANG BORDER REGION
    Distances 282 km (175 miles) ESE of Hotan, China
    481 km (298 miles) ENE of Leh, India
    549 km (341 miles) SSE of Aral, China
    560 km (347 miles) ESE of Shache, China
    Location Uncertainty horizontal +/- 13.8 km (8.6 miles); depth +/- 4.6 km (2.9 miles)
    Parameters NST=409, Nph=417, Dmin=>999 km, Rmss=0.65 sec, Gp= 14°,
    M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=9
    Source

    Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)

    Event ID usb000bv81

  13. tckev says:

    Some more reports of seismic activity today Sunday August 12, 2012 (all times UTC) –

    At 4:17 PM, in Fiji region there was a seismic activity of magnitude 4.4 and depth 333.80Km.
    At 3:09 PM, in Dominican Republic there was a seismic activity of magnitude 3.3 and depth 97.00Km.
    At 2:28 PM, in Central Alaska there was a seismic activity of magnitude 3.3 and depth 55.10Km.
    At 1:38 PM, in southern Xinjiang there was a seismic activity of magnitude 4.3 and depth 10.00Km.
    At 11:59 AM, in Kuril Islands there was a seismic activity of magnitude 4.2 and depth 142.20Km.
    At 10:47 AM, in Xinjiang-Xizang border region there was a seismic activity of magnitude 6.3 and depth 9.70Km.
    At 9:27 AM, in near the east coast of the Kamchatka Peninsula there was a seismic activity of magnitude 4.0 and depth 53.60Km.
    At 7:33 AM, in Kodiak Island region there was a seismic activity of magnitude 3.4 and depth 2.20Km.
    At 6:40 AM, in northwestern Iran there was a seismic activity of magnitude 4.4 and depth 9.70Km.
    At 6:32 AM, in Ryukyu Islands there was a seismic activity of magnitude 4.7 and depth 127.60Km.

    It’s been lively today.

  14. E.M.Smith says:

    Nice “Big One”:
    Magnitude 7.7 – SEA OF OKHOTSK

    2012 August 14 02:59:42 UTC
    Earthquake Details

    This event has been reviewed by a seismologist.

    Magnitude 7.7
    Date-Time

    Tuesday, August 14, 2012 at 02:59:42 UTC
    Tuesday, August 14, 2012 at 12:59:42 PM at epicenter
    Time of Earthquake in other Time Zones

    Location 49.784°N, 145.126°E
    Depth 625.9 km (388.9 miles)
    Region SEA OF OKHOTSK
    Distances 158 km (98 miles) ENE of Poronaysk, Russia
    226 km (140 miles) ENE of Shakhtersk, Russia
    236 km (146 miles) ENE of Uglegorsk, Russia
    243 km (150 miles) ESE of Aleksandrovsk-Sakhalinskiy, Russia
    Location Uncertainty horizontal +/- 14.5 km (9.0 miles); depth +/- 6.9 km (4.3 miles)
    Parameters NST=999, Nph=999, Dmin=>999 km, Rmss=0.68 sec, Gp= 14°,
    M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=B
    Source

    Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)

    Event ID usc000bz29

    As a 7.7 in a subduction zone we’ve got the chance for Tsunami…

  15. tckev says:

    Is it me or are we having a spate of some larger quake at the moment. It’s been a while since I’ve seen so many 4+ rumbles so close together, or have I missed something?

  16. E.M.Smith says:

    @Tckev:

    It’s not just you. I commented on it a bit further up with respect to California. Fewer squares (under 400) but the image being nearly a solid line of color as each square is larger.

    Looking at the N.H. map, it has more total area covred in squares than at other times. ( I’ve saved various images over time so can do an A / B of a couple if needed).

    However, quakes are a stochastic process, so will have waves of more / less. Being as the ‘cycle’ is at least 1000 years long, you can have long term persistent ‘trends’ that are more than a lifetime, and are just random wander…

    Califiornia was well over 400 in the Supermoon, then down to about 350. Now up at 383 and rising. Yet the 350 point was more of a solid line of dots as more of them looked larger to to me.

    Does it mean anything? Who knows…

  17. LG says:

    @E.M. Smith
    Error in previously reported number.
    Excel/Calc only accommodates CSV files 65k-entry long.
    The number reported was only for quakes recorded in that DB up to 1984 10 20 .
    Mea culpa.

    [Reply: I doubt the percentages shift much post 1984... -E.M.Smith]

  18. E.M.Smith says:

    Looks like a 5.5 and a 4.5 a the northern part of the Cascadia AND a 6.x in Papua…

    Magnitude 5.5 – OFF THE COAST OF WASHINGTON\
    2012 August 19 08:07:36 UTC

    Earthquake Details
    This event has been reviewed by a seismologist.

    Magnitude 5.5
    Date-Time

    Sunday, August 19, 2012 at 08:07:36 UTC
    Saturday, August 18, 2012 at 11:07:36 PM at epicenter
    Time of Earthquake in other Time Zones

    Location 47.775°N, 128.589°W
    Depth 10.7 km (6.6 miles)
    Region OFF THE COAST OF WASHINGTON
    Distances 253 km (157 miles) SW of Tofino, Canada
    326 km (202 miles) WSW of Port Alberni, Canada
    341 km (211 miles) SW of Courtenay, Canada
    352 km (218 miles) SW of Campbell River, Canada
    Location Uncertainty horizontal +/- 11.7 km (7.3 miles); depth +/- 4 km (2.5 miles)
    Parameters NST=581, Nph=586, Dmin=163.6 km, Rmss=0.63 sec, Gp=140°,
    M-type=teleseismic moment magnitude (Mw), Version=9
    Source

    Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)

    Event ID usc000c2x2

    Magnitude 6.2 – NEAR NORTH COAST OF NEW GUINEA, P.N.G.

    Earthquake Details

    This event has been reviewed by a seismologist.

    Magnitude 6.2
    Date-Time

    Sunday, August 19, 2012 at 22:41:50 UTC
    Monday, August 20, 2012 at 08:41:50 AM at epicenter
    Time of Earthquake in other Time Zones

    Location 4.849°S, 144.583°E
    Depth 77.3 km (48.0 miles)
    Region NEAR NORTH COAST OF NEW GUINEA, P.N.G.
    Distances 104 km (64 miles) SSE of Angoram, Papua New Guinea
    118 km (73 miles) NNE of Mount Hagen, Papua New Guinea
    141 km (87 miles) WNW of Madang, Papua New Guinea
    163 km (101 miles) NNW of Goroka, Papua New Guinea
    Location Uncertainty horizontal +/- 13.5 km (8.4 miles); depth +/- 5.8 km (3.6 miles)
    Parameters NST=121, Nph=126, Dmin=438.6 km, Rmss=1.15 sec, Gp= 25°,
    M-type=regional moment magnitude (Mw), Version=9
    Source

    Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)

    Event ID usc000c350

  19. E.M.Smith says:

    A whole cluster of quakes just lit up in So. Cal. Total count is 538! and we’ve got this one:

    Magnitude 5.5 – SOUTHERN CALIFORNIA

    2012 August 26 20:57:58 UTC
    Earthquake Details

    This event has been reviewed by a seismologist.

    Magnitude 5.5
    Date-Time

    Sunday, August 26, 2012 at 20:57:58 UTC
    Sunday, August 26, 2012 at 01:57:58 PM at epicenter
    Time of Earthquake in other Time Zones

    Location 33.024°N, 115.549°W
    Depth 9 km (5.6 miles)
    Region SOUTHERN CALIFORNIA
    Distances

    5 km (3 miles) NNW (347°) from Brawley, CA
    7 km (4 miles) ESE (103°) from Westmorland, CA
    12 km (7 miles) SSW (197°) from Calipatria, CA
    26 km (16 miles) N (2°) from El Centro, CA
    148 km (92 miles) ENE (68°) from Tijuana, Baja California, Mexico

    Location Uncertainty horizontal +/- 0.3 km (0.2 miles); depth +/- 0.6 km (0.4 miles)
    Parameters Nph= 77, Dmin=8 km, Rmss=0.24 sec, Gp= 47°,
    M-type=local magnitude (ML), Version=3
    Source

    California Integrated Seismic Net:
    USGS Caltech CGS UCB UCSD UNR

    Event ID ci15200401

    Down near the Salton Sea…

  20. E.M.Smith says:

    Magnitude 6.6 – MOLUCCA SEAdetails.

    2012 August 26 15:05:37 UTC

    Earthquake Details

    This event has been reviewed by a seismologist.

    Magnitude 6.6
    Date-Time

    Sunday, August 26, 2012 at 15:05:37 UTC
    Sunday, August 26, 2012 at 11:05:37 PM at epicenter
    Time of Earthquake in other Time Zones

    Location 2.197°N, 126.835°E
    Depth 91.9 km (57.1 miles)
    Region MOLUCCA SEA
    Distances 138 km (85 miles) WNW of Tobelo, Indonesia
    168 km (104 miles) NNW of Ternate, Indonesia
    169 km (105 miles) NNW of Kota Ternate, Indonesia
    206 km (128 miles) ENE of Bitung, Indonesia
    Location Uncertainty horizontal +/- 3 km (1.9 miles); depth +/- 5.6 km (3.5 miles)
    Parameters NST=442, Nph=442, Dmin=168.3 km, Rmss=0.86 sec, Gp= 14°,
    M-type=centroid moment magnitude (Mw), Version=C
    Source

    Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)

    Event ID usc000c76x

  21. adolfogiurfa says:

    Magnitude
    7.3
    Date-Time
    Monday, August 27, 2012 at 04:37:20 UTC
    Sunday, August 26, 2012 at 10:37:20 PM at epicenter
    Time of Earthquake in other Time Zones
    Location
    12.278°N, 88.528°W
    Depth
    20.3 km (12.6 miles)
    Region
    OFFSHORE EL SALVADOR
    Distances
    111 km (68 miles) S of Puerto El Triunfo, El Salvador
    118 km (73 miles) S of Usulutan, El Salvador
    123 km (76 miles) S of San Rafael Oriente, El Salvador
    133 km (82 miles) S of Santiago de Maria, El Salvador
    Location Uncertainty
    horizontal +/- 16.1 km (10.0 miles); depth +/- 4.2 km (2.6 miles)
    Parameters
    NST=345, Nph=345, Dmin=130.2 km, Rmss=1.21 sec, Gp= 65°,
    M-type=(unknown type), Version=D

  22. E.M.Smith says:

    @Adolfo:

    Nice catch… Looks like the 7.x activity we had way down south a year or two back has moved a bit more north… Next stop L.A.? ( or I’m just projecting patterns where there are none…)

    Just noticed the “quake count” on the California map is over 800 at 808… Never seen a number that high.

    BTW, found a Peruvian Restaurant in town. We’re going to try it in a couple of days. Any suggestions for particularly Peruvian dishes to look for?

  23. philjourdan says:

    @E.M. Sorry for my errant post on the other thread. I missed this post, and was looking for a “tips/suggestion” link but could not find one.

    While none of these quakes were anything major, the largest ones are as big as the one that hit the east coast a year ago (and they are still talking about – go figure). And as you noted, the sheer number was what caught my attention (that plus the epicenter is about 2-3 miles from my inlaws). I am still new to the “quake chasers” endeavor, so I found it highly interesting, even if it apparently is not unique.

    Thanks for the link and the discussion.

Comments are closed.