Quake Watch 2018

a reply to: ManBehindTheMask

I have to agree with people who say it felt a lot stronger. I've never felt an 8, but I've felt quakes that were stronger magnitude than this 7 and this one *felt* like the largest quake I've ever experienced by a fair margin. Our saving grace was that it was relatively short in duration, possibly thanks to how close to the epicenter we were(?). It was violent as all hell. USGS did classify it as an VIII in their shakemap intensity analysis in some parts of Anchorage. I'll be perfectly happy if I never experience any quake as strong or stronger than that again in my life.

7.5 New Caledonia...just breaking

preceded by a 6.0


earthquake.usgs.gov...


Tsumani threat:

www.tsunami.gov...

AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.6 OCCURRED SOUTHEAST OF THE LOYALTY ISLANDS AT 0418 UTC ON WEDNESDAY DECEMBER 5 2018. * BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... HAZARDOUS TSUNAMI WAVES ARE POSSIBLE FOR COASTS LOCATED WITHIN 1000 KM OF THE EARTHQUAKE EPICENTER.

5.4 of the coast of Canada...right on the plate.....10 km depth.

earthquake.usgs.gov...

a reply to: RickinVa

4.2
174km W of Tofino, Canada
2018-12-09 09:14:25 (UTC-09:00)
10.0 km
4.8
212km W of Tofino, Canada
2018-12-09 08:48:41 (UTC-09:00)
10.0 km
5.4
210km SSW of Port Hardy, Canada
2018-12-09 07:20:13 (UTC-09:00)
10.0 km

Looks like an active day in Canada..eh

Alaska too as Anchorage just had a 5.0 aftershock.

M 5.0 - 10km SSE of Big Lake, Alaska

2018-12-09 19:00:31 (UTC)61.438°N 149.877°W29.5 km depth
earthquake.usgs.gov...

a reply to: Darkblade71

That one here in Anchorage they lowered to a 4.8.

This one was odd. The motion was different than all the others. Instead of the house rocking, it moved side to side and back and forth at the same time. Kind of hard to explain. The house only moved for a second or two, but it was more violent than the quakes that were larger. At least here where I am.

originally posted by: Blaine91555
a reply to: Darkblade71

That one here in Anchorage they lowered to a 4.8.

This one was odd. The motion was different than all the others. Instead of the house rocking, it moved side to side and back and forth at the same time. Kind of hard to explain. The house only moved for a second or two, but it was more violent than the quakes that were larger. At least here where I am.

Initially when I looked at USGS' site, it said there was a 4.1 in Sterling seconds before the 4.8 in Big Lake. I see they removed the 4.1, but it did kind of feel like being between a pair of jousting quakes. I think the shallowness (12 miles) made it more violent but reduced the length of it. I'm thinking closeness is throwing a lot of our internal reading off this past week. Friday's felt a lot bigger than a 7 and several of these upper level 4s have felt like 5s or even close to a 6 to me. Probably has a lot to do with the fact that all of the quakes I've been through prior to this one were considerably further away and the lurching has been a lot less violent on those because the S-waves had a chance to spread out more. I can definitely understand how ground zero at an 8 or 9 M quake is often said to look like a bomb went off. I can also understand why places like Pakistan and Haiti where buildings are rickety and not to EQ standards get utterly leveled by a 7M quake that hits them directly.

a reply to: TEOTWAWKIAIFF

Has anyone been following the USGS current earthquake map California area been following it for about a week and everyday there's been 3 or 4 quakes reported but today there's not been a single quake , This normal ?

a reply to: Gargoyle91


The last 24 hours.

Small ones but looks normal. You might need to change your settings when you look at the map?

a reply to: Blaine91555

Yep that was it I was set at 2.5+ ,

Thanks!

By the way why nothing from Antarctica ?

a reply to: Gargoyle91

By the way why nothing from Antarctica ?

There is so little exposed rock down there that there is very little station coverage. Placing seismometers on ice doesn't do much good.

Similarly for Africa but it's not due to not enough exposed rock, rather there just aren't very many sensors in place.

Russia and China operate their own networks and don't share data, thus why we don't have many quakes reported from those areas.

The USGS, EMSC, & GFZ all share their data openly.

M 7.4 - 82km W of Nikol'skoye, Russia

2018-12-20 17:01:54 (UTC)
Location
55.106°N 164.709°E
Depth
9.6 km

M 3.1 - 30km WNW of West Yellowstone, Montana

2018-12-20 16:36:04 (UTC)
Location
44.759°N 111.468°W
Depth
17.1 km

7.0 in Philippines with Tsunami warning.

www.cnn.com...

a reply to: TEOTWAWKIAIFF

On average there are around 50 volcanoes that are active in any given year even though there are around 1500 claimed and known active volcanoes... In 2018 there were 71 active eruptions. youtu.be...

M 4.1 - 148km W of Brookings, Oregon
Time
2019-01-04 22:58:43 (UTC)
Location
41.858°N 126.061°W
Depth
10.0 km

With the quakes we have had in recent months it will be a good time for something to pop

"The next supermoon comes with the January 21 full moon, which is, moreover, to stage a total lunar eclipse. This supermoon on January 21 ushers in the first in a series of three full supermoons falling on January 21, February 19 and March 21, 2019. Of these, the February 19th full moon showcases the closest and largest full supermoon of 2019."


"According to the original definition of supermoon – coined by Richard Nolle in 1979 – a full moon or new moon has to come within 90 percent of its closest approach to Earth to be dubbed a supermoon."


"This year, in 2019, the moon at its closest point to Earth resides 221,681 miles (356,761 km) away."
So the Feb one is really close!

Full moon distance (2019 Jan 21): 222,274 miles or 357,715 km
Full moon distance (2019 Feb 19): 221,734 miles or 356,846 km
Full moon distance (2019 Mar 21): 224,173 miles or 360,772 km

earthsky.org...

so we can expect some shaking and fireworks on earth….

a reply to: SeaWorthy

I was in jail here in Alaska for our last big quake. It was such a rush, i remember i was on my top bunk when the shaking started. I paused for a moment as I began to realize what was happening and as the shaking grew more severe I jumped off the top bunk and ran outside barefooted.

I was standing on some ice cold frosty grass and watching as the razor wire fences swayed back and forth with intensity and the ground was rolling like the ocean. It was awesome.

I wanted to hop on ATS and post about it so bad when it happened but I was in jail so no internet access.

originally posted by: ManBehindTheMask

originally posted by: TEOTWAWKIAIFF
Huge quake, Anchorage, AK!!

Just happened. No known magnitude.

My guess. 8.0 - 8.5

Long sucker too!

Im still trying to get where you figure an 8-8.5 I havent heard any reports anywhere that it was that strong........not trying to minimize I just think its imperative that in situations like this people are accurate.......

They probably guessed 8.0 or higher because the epicenter was only a few miles out of town. Usually our quakes are centered far out in the wilderness.

originally posted by: ressiv
so we can expect some shaking and fireworks on earth….

a reply to: SeaWorthy

Yup its probably on the way!!


fuca quakes
M 3.2 - 147km WSW of Gold Beach, Oregon II DYFI? Time 2019-01-09 10:34:48 (UTC) Location 41.935°N 126.086°W Depth 10.0 km


M 3.3 - 18km W of Petrolia, CA

2019-01-10 00:05:58 (UTC)
Location
40.299°N 124.492°W
Depth
20.0 km