Mag 7.6 earthquake near Kainantu, Papua New Guinea

[Astronuc]

M 7.6 - 66 km E of Kainantu, Papua New Guinea​

https://earthquake.usgs.gov/earthquakes/eventpage/us6000iitd/executive

• 2022-09-10 23:46:57 (UTC)
• 6.256°S 146.469°E
• 90.0 km depth

https://www.msn.com/en-us/news/worl...tude-7-6-strikes-papua-new-guinea/ar-AA11GO6l

 

[berkeman]

Wow, that is a very strong earthquake. Lucky that the deaths and injuries were not worse. From your 2nd link:

The full extent of damage was not immediately clear as the location of the earthquake was remote.

 

[davenn]

I have been busy of late and didnt get a chance to post my seismogram ...

It was a busy 24 hours or so. We will start some hours before the 7.6 event

This first gram shows 220909 UT M5.1 Timor Leste, 6.2, 5.9 and 6.2 northern Papua
did a save just before the second 6.2 started overwriting the trace of the first 6.2

the first and 2nd 6.3 full gram and in between them is the signal of the 5.9

Skip forward around 12 hours or so and there's another triple sequence ending in the 7.6
6.0 and 5.7 of the NW coast of Sumatera, Indonesia. And before the 6.0 and 5.7 could finish, the 7.6
started. Did a save at there the 7.6 just got to the 6.0 P wave arrival.
Each horizontal line is 1 hour long and there are 10 minute dotted vertical line intervals.
The 7.6 P wave arrival a few minutes after the 50 minute dotted line

and finally the full M7.6 up to just be the P wave arrival

cheers
Dave

 

[davenn]

Annotated explanation :)