Quakes – Several

OK, last posting on quakes had a ‘strange one’ in Quebec. Now we’ve had one in Washington D.C. that I ignored, then a couple of ’6 ish’ ones that I’ve let pass. (When a 6.7 isn’t getting the old juices flowing, well, there’s been a lot of quake activity…)

OK, so here’s a catch up update posting.

Live USA Quake Map

Live USA Quake Map

One this USA map you can see the little dot over D.C. and the activity in Alaska. Just in passing I’d note the dots of activity all over Puerto Rico and Hawaii too. Oh, and those little ones near the Mississippi are interesting too…

Just because it might be the only time in my life I get to post about a quake in D.C., here are the particulars:

Magnitude 3.6 – POTOMAC-SHENANDOAH REGION
2010 July 16 09:04:47 UTC
Magnitude 3.6
Date-Time
* Friday, July 16, 2010 at 09:04:47 UTC
* Friday, July 16, 2010 at 05:04:47 AM at epicenter

Location 39.167°N, 77.252°W
Depth 5 km (3.1 miles) set by location program
Region POTOMAC-SHENANDOAH REGION
Distances 15 km (10 miles) NW of Rockville, Maryland
30 km (15 miles) ENE of Leesburg, Virginia
35 km (20 miles) NW of WASHINGTON, D.C.
70 km (45 miles) WNW of ANNAPOLIS, Maryland
Location Uncertainty horizontal +/- 13.3 km (8.3 miles); depth fixed by location program
Parameters NST= 15, Nph= 15, Dmin=44.7 km, Rmss=1.49 sec, Gp=133°,
M-type=”Nuttli” surface wave magnitude (mbLg), Version=6

Event ID us2010yua6

Then we have a much more notable sized quake in Alaska (and a whole mess of aftershocks):

Magnitude 6.7 – FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
2010 July 18 05:56:44 UTC
Magnitude 6.7
Date-Time
* Sunday, July 18, 2010 at 05:56:44 UTC
* Saturday, July 17, 2010 at 09:56:44 PM at epicenter
* Time of Earthquake in other Time Zones

Location 52.861°N, 169.839°W
Depth 10 km (6.2 miles) set by location program
Region FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
Distances 60 km (40 miles) ENE of Yunaska Island, Alaska
65 km (40 miles) W of Nikolski, Alaska
1515 km (940 miles) WSW of Anchorage, Alaska
2295 km (1420 miles) W of JUNEAU, Alaska
Location Uncertainty horizontal +/- 4.1 km (2.5 miles); depth fixed by location program
Parameters NST=365, Nph=365, Dmin=248.3 km, Rmss=1.05 sec, Gp= 47°,
M-type=teleseismic moment magnitude (Mw), Version=8

Event ID us2010ywaq

Of course, Hawaii has had a couple of 3 ish sized quakes, just in sympathy I suppose ;-) as has Puerto Rico.

Chile Has Had a Mess’O 5.0 Range Quakes

Here is a South America centric view:

South America Centric Quake Map

South America Centric Quake Map

Original Image with Clickable Details

OK, so you can keep tabs on what’s going on, here are the two polar hemisphere views

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…

The Whole World View

Current quake map

Current quake map

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

Australia and Indonesia

How about a look at that Near Australia edge of the Ring of Fire? “What’s happened lately” where those pesky Indonesian volcanos sporadically cause a little ice age?

Australia Region Quake Map

Australia Region Quake Map

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

Yup, that’s a “Big ‘un” in Papua New Guinea:

Magnitude 7.3 – NEW BRITAIN REGION, PAPUA NEW GUINEA
2010 July 18 13:35:02 UTC
Magnitude 7.3
Date-Time
* Sunday, July 18, 2010 at 13:35:02 UTC
* Sunday, July 18, 2010 at 11:35:02 PM at epicenter

Location 6.019°S, 150.497°E
Depth 57.6 km (35.8 miles)
Region NEW BRITAIN REGION, PAPUA NEW GUINEA
Distances 65 km (40 miles) SE of Kimbe, New Britain, PNG
105 km (65 miles) ENE of Kandrian, New Britain, PNG
525 km (325 miles) NE of PORT MORESBY, Papua New Guinea
2385 km (1480 miles) N of BRISBANE, Queensland, Australia
Location Uncertainty horizontal +/- 7.6 km (4.7 miles); depth +/- 14.5 km (9.0 miles)
Parameters NST=223, Nph=223, Dmin=525.6 km, Rmss=1.29 sec, Gp= 22°,
M-type=teleseismic moment magnitude (Mw), Version=8

Event ID us2010ywbr

The astute observer will note that this one, like some of those above, all happened on the 18th… Just Saying…

North America Map

Simply because it’s where one side of the Ring of Fire goes.

Current quake map in North America

Current quake map in North America

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

Where we note that a 5.1 scale quake has gone off offshore of Canada:

I note this one in particular, despite is relatively small size, as it is on the edge of the world near me, and near the locked section of the Cascadia Fault. If that one goes, it will be bad. Very bad.

Magnitude 5.1 – VANCOUVER ISLAND, CANADA REGION
2010 July 19 17:15:03 UTC
Magnitude 5.1 (Preliminary magnitude — update expected within 15 minutes)
Date-Time
* Monday, July 19, 2010 at 17:15:03 UTC
* Monday, July 19, 2010 at 10:15:03 AM at epicenter

Location 49.730°N, 129.682°W
Depth 1 km (~0.6 mile) set by location program
Region VANCOUVER ISLAND, CANADA REGION
Distances

* 188 km (117 miles) WSW (237°) from Port Hardy, BC, Canada
* 320 km (199 miles) W (267°) from Campbell River, British Columbia, Canada
* 399 km (248 miles) WNW (294°) from Neah Bay, WA
* 476 km (296 miles) W (279°) from Vancouver, British Columbia, Canada

Location Uncertainty Error estimate not available
Parameters NST= 57, Nph= 57, Dmin=194 km, Rmss=4.26 sec, Gp=148°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
Source
* West Coast and Alaska Tsunami Warning Center/NOAA/NWS
Event ID at00955970

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. Turns out right now it’s still Baja. (And Has Been For MONTHS). But with things getting more active near me and with a ‘nearly 4′ just a few days ago, I’ve been feeling that ‘slightly dizzy’ I get when quakes are happening in excess.

Magnitude 3.8 – NORTHERN CALIFORNIA
2010 July 15 23:54:20 UTC
Date-Time
* Thursday, July 15, 2010 at 23:54:20 UTC
* Thursday, July 15, 2010 at 04:54:20 PM at epicenter
Location 38.815°N, 122.816°W
Depth 2.4 km (1.5 miles)
Region NORTHERN CALIFORNIA
Distances 25 km (15 miles) SW of Clearlake, California
45 km (25 miles) NNW of Santa Rosa, California
50 km (30 miles) SE of Ukiah, California
120 km (75 miles) WNW of SACRAMENTO, California
Location Uncertainty horizontal +/- 0.1 km (0.1 miles); depth +/- 0.2 km (0.1 miles)
Parameters Nph= 78, Dmin=1 km, Rmss=0.09 sec, Gp= 18°,
M-type=regional moment magnitude (Mw), Version=8
Event ID nc71425825

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’.

Looks like a little more fresh action in Baja and the rest of the place is getting measles…

Mammoth Lakes / Long Valley Volcano

Because I want to know if it starts to blow it’s top…

Mammoth Mountain - Long Valley Super Volcano

And I note that after a brief pause, it’s gone back to a series of low rumbles. Yeah, nothing big enough to worry about, but it’s pretty clear that the “pause” we had about a week and a half ago has been made up…

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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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15 Responses to Quakes – Several

  1. Soronel Haetir says:

    My one problem with China investments is worry about getting any gains out. I’ve read plenty of material about China being more than happy to accept investment money, but trying to move it out of country afterward can be problematic.

  2. Dave McK says:

    Didn’t even feel the one on the island.
    We have the tsunami trail marked with little green signs as if it were a park attraction – where to go in case.
    Last one didn’t do much here – we’re up at the end of a deep water harbor – but other places went swimming.
    That was decades ago.

  3. E.M.Smith says:

    That’s why I don’t do direct China investment. I buy China stocks traded outside of China or funds that do the investing and where the fund is externally traded. I can be “out of China” in 10 seconds with one trade. The only “aw shit” would be if China froze things while the markets were closed.

    But even then, if things even start to look flakey, I’m either traded out or I’ve bought a ‘protective put’ (that would be instantly in the money big time if the stock were halted / frozen by China…)

    So while I’d be very reluctant to own a factory in China, I’m happy to own an ADR (American Depository Reciept) traded on the NYSE for a China company with an underlaying stock traded in Hong Kong.

    Oh, and I’d never put more than 10% of my total portfolio in one bucket. And China would be a single bucket… due to exactly that Sovereign Risk problem.

    Then again, in the USA we just abrogated bond holders rights in GM and sold them down the river, gave a gift of stock to the auto workers union, and had a Lange Type Socialist takeover via stock ownership… Leaving the prior stock holders with nothing. (And ignoring existing bankruptcy law in the process…) So exactly where is Sovereign Risk the highest? I’m not sure any more…

  4. E.M.Smith says:

    OK, I know it’s a “dinky” but I just drove over that chunk of dirt on my way home from touring some missions further south. Including San Juan Bautista … just about on top of this epicenter. We were there from about noon to 3 pm, then went on south, and returned.

    Passed by this spot again about 8 PM.

    So I’m sitting here doing my catch up, and feel the ‘slight dizzy’ then a little later get the ‘window rattle’ of a dinky and wonder if something happened.

    Then got distracted reading WUWT… so 2 1/2 hours later I check and find out, sure enough, I’ve just had a little quake…

    The quake happened at a bit before midnight.

    Now comes the waiting. Was it a fore-shock? Or not?

    Magnitude 3.4 – CENTRAL CALIFORNIA
    2010 July 21 06:54:35 UTC
    This event has been reviewed by a seismologist.Magnitude 3.4
    Date-Time Wednesday, July 21, 2010 at 06:54:35 UTC
    Tuesday, July 20, 2010 at 11:54:35 PM at epicenter
    Time of Earthquake in other Time Zones
    Location 36.831°N, 121.571°W
    Depth 8.8 km (5.5 miles)
    Region CENTRAL CALIFORNIA
    Distances 15 km (10 miles) W of Hollister, California
    20 km (10 miles) NNE of Salinas, California
    20 km (10 miles) S of Gilroy, California
    195 km (120 miles) S of SACRAMENTO, California
    Location Uncertainty horizontal +/- 0.2 km (0.1 miles); depth +/- 0.4 km (0.2 miles)
    Parameters Nph= 69, Dmin=3 km, Rmss=0.11 sec, Gp= 36°,
    M-type=regional moment magnitude (Mw), Version=4
    Source California Integrated Seismic Net:
    USGS Caltech CGS UCB UCSD UNR
    Event ID nc71429025

    IMHO, it had the ‘sharp and gone’ of a fore-shock. But a lot of smaller quakes feel that way. And it was shallow.

    Well, somehow I think it’s going to be an interesting time in the valley here as the stresses move around and resettle. We’ve still got Baja just cranking out a storm of creep into the fault system, and we’ve got ‘dinky’ ones all over the place, including on the faults on both sides of the bay. (Hayward / Calaveras ought to be ‘next’ as it usually goes a few years after San Andreas, and San Andreas went in Loma Preieta… but that was only about 1/2 the usual rupture length and a bit south of the Hayward / Calaveras split off, so maybe not…)

    Then that one up near Vancouver goes and reminds me that we had some near Eureka a while back, so both sides of the Cascadia are moving, but Cascadia stays locked. Not good.

    All in all, I’d really rather it was less active on the faults right now… It’s just that I’d like to go to bed and not check the quake kits… and I’m fresh out of Scotch ;-)

    OK, ok, Yeah, I chose to live here. Yes, I’m located on the best spot for 50 miles per the USGS maps. Yes, I came through a 7+ with the loss of one wine glass from the fireplace mantle (probably ought not to have had it there…) And yes, I usually don’t even notice anything less than a 5.

    But that’s sort of the point. This one felt a bit different. Sharp enough to notice even for the low power.

    Oh well, we’ll just have to wait and see.

    I suppose it’s better than Chile with the “magnitude 5+ per week by the dozen) or those Islands north east of Australia that are doing major rock and roll.

    But it’s just crying out for a modest San Andreas quake to load up the Calaveras enough to ‘let it rip’ and take out Oakland and Berkeley.

    Then again, it was kind of spooky to be looking out the back yard of the Mission directly AT the San Andreas… and now to have that chunk kick up it’s heels…

  5. boballab says:

    I see the influence of my recent trip to the West Coast, including Seattle, has started to have an effect. Also notice that the DC quake has occured after I returned home to Ocean City which necessitated a trip though DC.

    So lets see I have brought unseasonably cold temperatures to the west coast, earthquakes to a locked fault zone, one to DC, Delayed the opening of the road to one of the visitors centers at Mt. Rainier until almost July (they still had 6 ft of snow on the road), Tornados to Minnesota (They occured the night before we drove through there on I-90 and you could see some of the damage from it), watched 2 days of snow fall on Mt. Hood while I was in Portland and saw the still frozen over lakes along the Beartooth Highway between Yellowstone and Billings, MT.

    Maybe I should visit the Gulf Coast……

  6. E.M.Smith says:

    Might I suggest a strategically timed vacation in Mexico? Near a certain ‘treaty’ junket? 8-)

    Or just hang out at AlGores house for a while…

    Hmmm…. Have you considered spending an extended time touring the nations capitol? I understand that the Congressional Rotunda is especially interesting, and tours of the White House are given frequently…

  7. This is is our friend Vukcevic magnetic correlation about the recent February 8.8 richter, Concepcion, Chile, earthquake:

    http://www.vukcevic.talktalk.net/LFC13.htm

  8. Bruce of Newcastle says:

    Hmm, 6 or 7 tremors beneath Kalta in the last 24 hrs, between 5 and 15 km depth. Not definitive since Katla is slam bang on the rift zone, so they may be fault related, but well worth watching.

  9. E.M.Smith says:

    I’ve added the present Katla and “Unpronouncable” map from

    http://en.vedur.is/photos/jarmyrj/100722_0100.png

    to the posting up above. So folks can see what’s happening.

    UPDATE: I’ve removed it from the article as that image has now evaporated.

  10. E.M.Smith says:

    Well, it looks like a 7.0 aftershock of the prior 7.3 in New Guinea… then again a 7.3 vs a 7.0 is sort of a toss up.

    Magnitude 7.0 – NEW BRITAIN REGION, PAPUA NEW GUINEA
    2010 August 04 22:01:43 UTC

    * This event has been reviewed by a seismologist.

    Magnitude 7.0
    Date-Time

    * Wednesday, August 04, 2010 at 22:01:43 UTC
    * Thursday, August 05, 2010 at 08:01:43 AM at epicenter
    * Time of Earthquake in other Time Zones

    Location 5.768°S, 150.776°E
    Depth 44 km (27.3 miles) set by location program
    Region NEW BRITAIN REGION, PAPUA NEW GUINEA
    Distances 75 km (45 miles) ESE of Kimbe, New Britain, PNG
    145 km (90 miles) ENE of Kandrian, New Britain, PNG
    570 km (355 miles) NE of PORT MORESBY, Papua New Guinea
    2415 km (1500 miles) N of BRISBANE, Queensland, Australia
    Location Uncertainty horizontal +/- 5.2 km (3.2 miles); depth fixed by location program
    Parameters NST=183, Nph=183, Dmin=566.7 km, Rmss=1.05 sec, Gp= 14°,
    M-type=teleseismic moment magnitude (Mw), Version=8
    Source

    * USGS NEIC (WDCS-D)

    Event ID us2010zncq

  11. boballab says:

    Another interesting though small quake was this one this past week:

    Earthquake Details
    This event has been reviewed by a seismologist.
    Magnitude 2.8
    Date-Time Wednesday, August 04, 2010 at 09:06:26 UTC
    Wednesday, August 04, 2010 at 02:06:26 AM at epicenter
    Time of Earthquake in other Time Zones

    Location 46.125°N, 122.501°W
    Depth 18 km (11.2 miles) set by location program
    Region WASHINGTON
    Distances 35 km (20 miles) E of Longview, Washington
    55 km (35 miles) NNE of Vancouver, Washington
    105 km (65 miles) SSE of OLYMPIA, Washington
    165 km (100 miles) S of Seattle, Washington

    Location Uncertainty horizontal +/- 0.6 km (0.4 miles); depth fixed by location program
    Parameters NST= 71, Nph= 73, Dmin=10 km, Rmss=0.18 sec, Gp= 25°,
    M-type=duration magnitude (Md), Version=1
    Source Pacific Northwest Seismograph Network

    Event ID uw08040906

    That is right in the neighborhood of Mt. St. Helens and then there was the 4.8, 4.2 and 3.2 quakes in the last day, that is less then 60 miles south of Yellowstone. You have to move the cursor around a bit to get all 3 quakes because they are right on top of each other even zoomed in.

  12. Ken says:

    If you look at the animation of quakes @ http://earthquake.usgs.gov/earthquakes/recenteqsanim/
    Last seven days for U.S. Can’t help but think that California and Yellowstone are conected! Not just related but looks like California system in some way is feeding Yellowstone! Possible deep magma intrusion? Or what? New crustal weakness? Check elevation changes along earthquake locations from CA. to Yellowstone. Something is going on!

  13. E.M.Smith says:

    @Ken:

    Cool link! Yeah, the mountains of California and the Rockies both exist due to uplift from the Pacific plate crashing into the North America plate. It looks to me like the energy arriving in Baja splits with some up the Rockies and some up the California fault systems. The continents are made of blocks crushed together millions or billions of years ago, but the ‘joins’ remain, often as weak spots.

    Things do look very ‘lit up’ though.

    I’m quietly hoping noting big comes of it, but also expect that we’re going to have a few more ‘big ones’ and an extra volcano to two during this solar minimum. They have come together as a set in the past…

  14. P.G. Sharrow says:

    All you need now is a nice eclipse.

    While everyone is looking at the L.A. to Parkfield fault. Has anyone been watching the North Bay to Crescent City fault line? most of the quakes that I’ve seen over the last few months look like compression distortion caused in folding areas and not side to side slippage as in the great faults. Just the right thing for volcanic activity. pg

  15. boballab says:

    Well Ecuador got smacked by a 7.1 quake. Luckily for them it was also very deep, which muted it.

    Magnitude 7.1
    Date-Time Thursday, August 12, 2010 at 11:54:16 UTC
    Thursday, August 12, 2010 at 06:54:16 AM at epicenter
    Time of Earthquake in other Time Zones

    Location 1.260°S, 77.312°W
    Depth 211 km (131.1 miles) set by location program
    Region ECUADOR
    Distances 145 km (90 miles) E of Ambato, Ecuador
    155 km (95 miles) ENE of Riobamba, Ecuador
    155 km (95 miles) SSW of Nueva Loja, Ecuador
    175 km (110 miles) SE of QUITO, Ecuador

    Location Uncertainty horizontal +/- 3.3 km (2.1 miles); depth fixed by location program
    Parameters NST=523, Nph=523, Dmin=752.8 km, Rmss=0.87 sec, Gp= 14°,
    M-type=teleseismic moment magnitude (Mw), Version=8
    Source USGS NEIC (WDCS-D)

    Event ID us2010zwa5

    First Chile now Ecuador, if a 7+ quake hits Mexico or Central America in the comming months it might be time for people in California to review that disaster preparedness list, because then it will really seem that things are walking up the coast.

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