M6.4 off the coast of Japan Jul 22

I checked didnt find anything on here. Sorry if this is all ready been posted

news.lucaswhitefieldhixson.com...
So are these larger earthquakes still after shocks from the 9.0?

I don't claim to know much about earthquakes, but, when are they Not going to consider these after shocks? The main event was months ago so why are these not considered seperate events? Just to add, these poor folks have had enough. Hope all this ends soon.

mayeb if there lucky... seems like theres lots to come globally.. this year seem slike floods were worse that the last couple.. tornadoes worse too.. earthquakes... and volcanic eruptions... doesnt look so good

reply to post by DAVID64


Your right david Those poor people have had enough..unfortunately i think the punches are going to keep on rolling. all i can do is pray for them. Btw david your Avatar has me mesmerized. That lizard is beyond cute. do you know what kind it is?

reply to post by DAVID64


Again like you, I don't claim to be a super Geologist, infact far from it. However i do live in an Earthquake zone so i do think i can speak with some experience. Japan's quake was the fourth (Correct me if i am wrong) largest earthquake ever recorded. These earthquakes are their own events respectively however they are considered aftershocks due to the fact that they occur because of the mag 9. If you look on the wikipedia page for the Japanese Earthquake:

en.wikipedia.org...

It does record the 3 7's as their own events even though they are aftershocks. All together the 9 has generated over 60 mag 6's and higher so you can understand why they aren't all their own events.

And here is the definition of Aftershock;

An aftershock is a smaller earthquake that occurs after a previous large earthquake, in the same area of the main shock. If an aftershock is larger than the main shock, the aftershock is redesignated as the main shock and the original main shock is redesignated as a foreshock. Aftershocks are formed as the crust around the displaced fault plane adjusts to the effects of the main shock.

Source: en.wikipedia.org...

Our city of Christchurch has experienced 3 major quakes since sept last year; 7.1 4th September 2010, 6.3 22nd of February 2011 and 5.5 & 6.3 13 of June 2011. All the quakes that follow the 7.1 are considered aftershocks because they are caused by the main event even though some such as the 22nd are their own event on their own fault line.

Hi folks,

Saw this when I got up this morning. Looks like it's maybe been quite an active 24 hours all over.

May I sugggest that you check out Quake Watch Thread

I've started following that thread and found the folks to be quite informative and thought it may help you with getting to know quakes.

I stay in haggis land (Scotland) so we don't get much threat here but I couldn't imagine living in a zone, my paranoia is bad enough living here and dealing with general life.

Peace and stay safe

SIB