Quake Watch 2015

originally posted by: AlexanderM
Waiting for the big ones in Peru and off the tip of Vancouver Island, which we will feel here in Vancouver. Hopefully not.

Yes.

I agree with you on this!

Also, I believe we will see a very large one up in Alaska.

a reply to: westcoast

I'm expecting it to start in the Seattle area....

and then I saw this.

M3.1 - 34km ESE of Darrington, Washington

Time

2015-11-25 20:11:58 (UTC)

Nearby Cities

34km (21mi) ESE of Darrington, Washington
67km (42mi) ENE of Lake Stevens, Washington
67km (42mi) ENE of Monroe, Washington
70km (43mi) ENE of West Lake Stevens, Washington
166km (103mi) E of Victoria, Canada
earthquake.usgs.gov...

M3.5 - 33km ESE of Darrington, Washington

2015-11-25 21:20:37 (UTC)


Nearby Cities

33km (21mi) ESE of Darrington, Washington
64km (40mi) ENE of Monroe, Washington
65km (40mi) E of Lake Stevens, Washington
69km (43mi) ENE of West Lake Stevens, Washington
165km (103mi) ESE of Victoria, Canada

earthquake.usgs.gov...

Series of small quakes between 2.6 and 3.0 rattle New Madrid county, MO

Maybe 10 quakes rattle Missouri residents

a reply to: Rezlooper
www.kfvs12.com...

Glad you pointed these New Madrid earthquakes because I would have missed them. Usually, I ignore those in the middle of 'Merica, because, they are not natural. This series is most likely natural. Now, I can look at little closer forget Oklahoma. Those poor people.
Also, I clicked on link and it doesn't work.


Muzzy, if you read this, can you tell me what those two Peruvian earthquakes would equal adding up for one magnitude. I'm lazy

OOOPS I mucked up and double posted

a reply to: ericblair4891

Sorry bout that link. the URL matches up so I don't know why it didn't link. Let me try again.

www.bnd.com...


But I like your link better anyways, Eric. That news video says that quakes aren't unusual in this area but to have so many in such a short period of time is.

a reply to: ericblair4891
eric,
Depends which number you use.
if Institudo Geofisico del Peru (IGP);
First one @ 22:45 was 7.3Mw which is 1344 kilotons
Second one @ 22:50 was 7.2Mw, which is 951 kilotons
thats a total of 2296 kilotons which equals a 7.45 Mw

If you use IRIS (neic pde)
they were both 7.6Mw
so 2 x 3788 kilotons = 7576 kilotons which is equal to a 7.8Mw

I didn't put the Me_bb or Me_hf energy magnitude numbers on the 2015 Significant Quakes as it wasn't available right away, but I will shortly
its posted on IRIS now
first one @ 22:45 was 7.67 Me_bb which equals 4824 kilotons
second one @ 22.50 was 7.82 Me_bb which equals 8099 kilotons
so total of 12923 kilotons, which roughly equals a 7.9 Me_bb

first one @ 22:45 was 8.01 Me_hf which equals 15610 kilotons
second one @ 22:50 was 8.16 Me_hf which equals 26206 kilotons
so total of 41817 kilotons which equals a 8.29 Me_hf

M6.4 - 130km SSW of Tarauaca, Brazil
Time
2015-11-26 05:45:18 (UTC)
Nearby Cities

130km (81mi) SSW of Tarauaca, Brazil
155km (96mi) SW of Feijo, Brazil
234km (145mi) SE of Cruzeiro Do Sul, Brazil
287km (178mi) W of Sena Madureira, Brazil
702km (436mi) ENE of Lima, Peru
earthquake.usgs.gov...

a reply to: muzzy

Thank you. I asked you, because you're not lazy. There's almost too many numbers for this bean to count. My guess was that is was roughly 8. My gosh, no wonder you guys have a tough time figuring out magnitude. I know you want a better system. There's a metric system to solve this problem for straight on measuring. Muzzy, you unify them okay so you can use your time more productively. If you had one system, you could avoid confusion and argument and time.

M4.4 - 262km WNW of Bandon, Oregon

Time

2015-11-26 07:36:01 (UTC)

Nearby Cities

262km (163mi) WNW of Bandon, Oregon
271km (168mi) W of Coos Bay, Oregon
344km (214mi) W of Roseburg, Oregon
355km (221mi) WSW of Corvallis, Oregon
384km (239mi) WSW of Salem, Oregon

earthquake.usgs.gov...

Magnitude 6.2
Region OFFSHORE ANTOFAGASTA, CHILE
Date time 2015-11-27 21:00:19.3 UTC
Location 24.87 S ; 70.61 W
Depth 13 km

www.emsc-csem.org...

M3.7 - 2km SSE of Cornwall, Canada
Time
2015-11-28 05:16:54 (UTC)
Nearby Cities

6km (4mi) S of Cornwall, Canada
14km (9mi) ENE of Massena, New York
52km (32mi) SW of Les Coteaux, Canada
56km (35mi) SW of Salaberry-de-Valleyfield, Canada
91km (57mi) ESE of Ottawa, Canada
earthquake.usgs.gov...

update on SW off Kyushu: muzzy
13 days after the M7.1 at SW Kyushu the aftershocks are still popping off, 30 on the 25th UTC.
I couldn't wait for the standard 14 days, can just do these when I have the time. We are packing to shift house.
So here is 12.37days.
mag1= 50 , mag2= 109 , mag3= 123 , mag4= 40 , mag5= 4 , mag7= 1 , total= 327 , total energy released= 688,728.313 TTNT


rightclickviewimageforfullsize


interactive maps (NZTopo and Bing) page

Looks a pretty standard aftershock sequence, no surprises.

nice pattern at katla's rim...:-)

en.vedur.is...

a reply to: ressiv
Haven't looked at IMO for a while
I see is Bardarbunga and Holuhraun still putting out micro quakes almost a year since the big eruption

As time passes there seems to be more aftershocks, but they are of smaller size
rightclickviewimageforfullsize


a couple of SW off Kyushu Animations
slow
fast
each image is a day, numbers are on bottom right corner

a reply to: muzzy
yeah as soon as I say "looks normal, no surprises" ............
the number of events continue to increase per 24 hr period
54 on the 28th JST (JMA are always 3 days behind on the catalog)
SW off Kyushu page note: the address stays the same, even if the title and the post date/time changes each day

Not sure what this means, the Bath's Law largest aftershock is on track at M5.9 already on the first day.
Seems to be 3 main areas of activity, the original M7.1 mainshock area in the SW, then two other areas to the NNE

e.g. first map shows the 14th day

then the 15th day (only part of, as the JMA data is only half a day in UTC time)

You can also see it on the "all aftershocks map". Its not so obvious, but you can see the thicker density of orb markers when I put hotspot discs to be in the same spot on each map

FWIW the central area is where the M5.9 aftershock was, in the top area the biggest event was a 4.3
I usually run M7's for 7 days or 14 days, but I might follow this through to 21 days, see what happens.

Update on Mt. Rainier

There has been some more movement in the past couple of days, this time much more shallow.





Source

Bishop

update on SW off Kyushu: muzzy
slight increase in magnitudes 4.4 and 4.1, and a tangent off to the east.

also the first events below M1
interactive map and new timeline graph