There was a M = 3.0 earthquake near Petrolia, CA today. Here is the USGS website for this earthquake. On Oct. 28, 2015, there was a small earthquake near Bayside, CA. Here is a map where I plot the focal…
Amlia fracture zone earthquake: Update #1
While in my slumber, the USGS prepared a moment tensor and another aftershock occurred. Below is an updated map to my initial report here. I plot this moment tensor, which shows a compressional mechanism. I placed a moment tensor /…
Earthquakes along the Amlia fracture zone!
There were just a few earthquakes in the mid 5 magnitude range. The first one was largest, so we would consider the others aftershocks. They appear to align north-south, so may be related to the Amlia fracture zone. The Amlia…
Mendocino fault earthquake!
We just had a M = 4.3 earthquake along the Mendocino fault zone. Here is the USGS website for this earthquake. There were some earthquakes of similar magnitude along the MF recently in January 2014 and April, 2015. This earthquake…
Earthquake near Chico!
I hope not too many bottles of Sierra Nevada broke from this small earthquake. Based on the “Did You Feel It?” reports, I suspect that this did not happen. Here is the USGS website for this M = 3.5 earthquake.…
Earthquake in Bayside (northern California)!
We just had a small earthquake in northern California. Here is the USGS website for the M = 3.4 earthquake. If you felt it, please go to the USGS “Did You Feel It?” website to fill out a report! This…
Afghanistan Earthquake: Update #1
There have been several data updates following the earthquake yesterday. I presented my first summary about this M = 7.5 earthquake here. There are a number of sources of information regarding the casualties from this devastating earthquake posted on this…
Earthquake in Afghanistan!
There was a large magnitude earthquake in Afghanistan today (M = 7.5). There have been reported thousands of deaths so far. Here the USGS websites for the largest earthquakes so far: 2015/10/26 M 7.5 2015/10/26 M 4.8 2015/10/26 M 4.4…
Earthquake mini-swarm near La Pine, OR!
Over the past day or so, there has been a swarm of seismicity in the La Pine area. La Pine is on the east side of the Cascade mountain range, a magmatic arc related to the Cascadia subduction zone. As…
Earthquake in Vanuatu! (western Pacific)
We just had an earthquake in the Vanuatu region, along the New Hebrides subduction zone. This earthquake is at great depth and will most likely not produce a tsunami. The USGS magnitude is currently set at M = 7.3. UPDATE:…