7.8 "aftershock" strikes Chile on land

M 7.8 - 23km S of Iquique, Chile

Time
2014-04-03 00:13:15 UTC-02:30
Location
0.430°S 70.113°W
Depth
20.0km

earthquake.usgs.gov...

This is an absolutely enormous quake for a depth that shallow ON land of all places.

My thoughts go out to Chile if this is actually the case. Let's hope that nothing larger is coming.

The shake map seems much more intense for Iquique than the 8.2 was.

My thoughts go out to Chile.

reply to post by Kitora


The poor people in that region are sure taking a beating. I guess we can only hope that that's the final pop and not too many of them perish. Somehow though I don't feel it's over, maybe (and hopefully) for them but I have a strange feeling that there's more to come down the whole west coast.

reply to post by minkmouse


Pretty much what minkmouse said. I know if I were there, I'd be scared to death right about now. Scared to be indoors, scared to be outdoors.

My heart goes out to them...I pray for peace and stillness for them.

Des

I'm trying to remember..didn't either TrueAmerican or Puterman predict there would be MULTIPLE big quakes in the region? Or was that another member? Seems like someone did...

Was anyone able to get a prediction on this one ?

reply to post by minkmouse


I wonder if this will trigger another Peru quake and possible volcano eruption in Peru.

Really hope no one is hurt...

reply to post by kosmicjack

Don't quote me on it but I thought that I read PuterMan predict an 8 in early April and I read TrueAmericans thread on a possible megathrust in the high 8 range.

Now we all wait and see if an 8.5-9 is really in store for these poor people. I can't imagine the damage if such a quake was to occur that close to a city, or rather, cities.

reply to post by kosmicjack


Pretty sure Puterman predicted or saw the possibility of a big one in that neck of the woods. Maybe TA too...Those guys rock!

Somebody in the know, answer this:

With two major quake in the last 48 hours in this area (Peru, then Chile), just how connected, geologically, is this zone to the West Coast of the US? Is it all part of the Pacific Rim Ring of Fire?

My understanding is that it is all somewhat interconnected. If that's the case, I can't help but wonder what this may mean for California.

reply to post by minkmouse


Have been following the monster quake watch thread. IDK why...but I have a queasy feeling in my gut, this was a fore shock to a larger quake in a slightly different region. Lord, I hope not, but something feels...off.

Des

reply to post by Kitora


www.ga.gov.au.../A
Looks like the 7.8 wasn't the only one today in northern Chlie


Near Coast of Northern Chile.
Magnitude: 6.4 (Mwp)
Depth: 10 km
Tsunamigenic: Not available

Date and Time
UTC: 03 April 2014 @ 01:58:30
Sydney Time: 03 April 2014 @ 12:58:30 (AEDT)

Location
Coordinates: -20.200, -70.700

Solution status
Last updated: 03 April 2014 @ 13:11:09 (AEDT)
Solution finalised: No
Source: AUST

WOW!!!!

reply to post by Destinyone


I'm with you on that Des.

Something Big is brewing I think.

I hope everyone is wrong though and nothing else happens.



Downgraded to a 7.6

It looks like it has been downgraded to a 7.6 on usgs now.

Since then there has been a 5.6 and 5.8.

Ruh roh. Less than one mag from the "main" shock - 2 foreshocks before a bigger one is looking more likely!

Jesus, this is getting crazy down there... I'm really at a loss, and I feel like the worst hasn't even showed itself yet. Hopefully, I'm wrong.

Should we expect some more large aftershocks too?

reply to post by Trapjaw


Well for sure I'd be the wrong person to ask as I just check the USGS map trying to interpret the patterns. For six years or maybe more, I watch red, orange and yellow dots appear then dissolve after seven days. Using this method, I thought there was room for some big activity in that region. I would never predict because my scientific method is silly. I felt there could be a big one in the LA based on the way the little dots appeared recently. I know nothing about earthquakes and Volcanoes but I'd venture a guess that if an EQ compromises a part of a volcano that has actively been holding the pressures at bay...Well, it could pop!

kosmicjack
I'm trying to remember..didn't either TrueAmerican or Puterman predict there would be multiple quakes in the region? Or was that another member? Seems like someone did...

Thry both dud, but others have as well and it was in the news, before this, that they were expecting a big one, due to the quake swarms, as indicated by past history, I think. Don't quote me on it.

Just tossing this out here for some established guidelines to guage aftershocks...

Aftershock size and frequency with time

Aftershocks rates and magnitudes follow several well-established empirical laws.
Omori's Law

The rate of aftershocks with time follows Omori's law.[1] Omori's law, or more correctly the modified Omori's law, is an empirical relation for the temporal decay of aftershock rates.

Båth's Law

The other main law describing aftershocks is known as Båth's Law[5][6] and this states that the difference in magnitude between a main shock and its largest aftershock is approximately constant, independent of the main shock magnitude, typically 1.1–1.2 on the Moment magnitude scale.
Main article: Gutenberg–Richter law

Gutenberg–Richter law
Aftershock sequences also typically follow the Gutenberg–Richter law of size scaling, which refers to the relationship between the magnitude and total number of earthquakes in a region in a given time period.

Details at link... en.wikipedia.org...

Des

How horrible for all them people, I hope there isn't any more to follow & that this isn't a build up to a huge one. My mother in law was just saying something to me about how earthquakes can knock the earth from its axis or shift it or something, i don't know alot about that i know there was a big one in the past that may or may not have i didnt really look more in too it but could these big ones do anything like that? Sorry might seem like a dumb question!