Well, there have been a few more aftershocks over night… Here is my first post about these aftershocks (I provide more links to the USGS web sites). Plus, the USGS has inverted the seismic data to estimate a fault plane…
Large Aftershock in Nepal: 1st Update
The first moment tensor has been calculated and I have plotted this Mww MT on the map. There has also been a small M 5.6 aftershock to this M 7.3 aftershock. Here is the map, that also includes moment tensors…
Large Aftershock in Nepal
We just had a large aftershock to the east of the mainshock. The PAGER estimates are currently suggesting that there will be additional casualties. Regions that were destabilized (hillsides, buildings, etc.) from the main shock, but were not in areas…
Earthquake offshore of Bougainville!
Two days after the Mw 7.5 subduction zone earthquake along the New Britain trench, we get a swarm of seismicity further south offshore of Bougainville! (near the Solomon Islands) The largest earthquake has a magnitude M = 7.1. Here is…
New Britain Strikes Again!
In the past week, there has been a series of earthquakes in the New Britain trench. The largest quakes are M = 6.7 & 6.8. Now we might call those foreshocks to today’s M = 7.5 earthquake de Cinco de…
Small Earthquake in San Francisco Region
There was a M 3.6 earthquake near Concord, CA. This earthquake was felt widely across the S.F. Bay area. The two earthquakes plotted in the map below are both just southeast of the 2014 August Napa earthquake. The Napa earthquake,…
New Britain stays seismically active
We just had five M~5 earthquakes along the New Britain trench. The New Britain trench is formed by the subduction of the oceanic Solomon Sea microplate beneath the oceanic South Bismark microplate to the north. Here are the USGS web…
Earthquakes in Los Angeles
We have had a number of small earthquakes in the Los Angeles Basin in the past month. These three earthquakes appear aligned with the Newport Inglewood fault system, the fault that ruptured in 1933 for what is generally called the…
Coseismic Surface Deformation: Nepal
We just got an image with an estimate of coseismic surface deformation for the Nepal Earthquake.
Earthquake Pair in New Britain
Good Morning New Britain. Today we had a second M = 6.8 earthquake in as many days. Here are the USGS web pages for the 2015.04.30 and 2015.05.01 earthquakes. Here is my quick post from yesterday’s earthquake. Here is a…