Recent USGS Significant Earthquakes- M 6.1 - 14km N of Golfito, Costa Rica 2018/08/21
- M 6.9 - 2km S of Belanting, Indonesia 2018/08/21
- M 6.6 - 50km S of Tanaga Volcano, Alaska 2018/08/21
- M 6.3 - 90km SW of Kaktovik, Alaska 2018/08/20
- M 6.3 - 250km SE of Iwo Jima, Japan 2018/08/20
- M 8.2 - 280km NNE of Ndoi Island, Fiji 2018/08/20
- M 4.4 - 7km NE of Aguanga, CA 2018/08/20
- M 6.3 - 6km NE of Sembalunlawang, Indonesia 2018/08/20
- M 6.9 - 0km SW of Loloan, Indonesia 2018/08/20
- M 6.4 - 5km WNW of Obelobel, Indonesia 2018/08/19
- Paleoseismicity
- Trembling Earth
- Goldfinger
- Landslide Blog
- American Geophysical Union
- Cascadia GeoSciences
- Cascadia GeoSciences 2012/05/23
- Jay’s Research Cruise Blog
- Last Night on the R/V Tangaroa 2016/11/21
- Sunset 2016/11/19
- Earthquake Response Cores 2016/11/18
Monthly Archives: January 2016
Earthquake Report: Kamchatka!
We just had an earthquake located along the Kamchatka Peninsula. Here is the USGS website for this M 7.2 earthquake. This earthquake was fairly deep and approximately east of a large and very deep earthquake from 2013. Here is my … Continue reading
Posted in asia, College Redwoods, earthquake, education, geology, HSU, plate tectonics, subduction
Earthquake Animation: Gorda Plate 1900-2016 M >+ 4.5
Following the earthquake pair today, I put together an animation showing the seismicity for this region between 1900 and 2016.01.30. I searched the USGS NEIC database for earthquakes of magnitude greater than or equal to M = 4.5. Here is … Continue reading
Posted in cascadia, College Redwoods, earthquake, education, geology, gorda, HSU, plate tectonics
Cascadia subduction zone: M 9.0 tsunami simulation video
NOAA Center for Tsunami Research just released an animation that shows a numerical simulation of what a tsunami may appear like when the next Cascadia subduction zone earthquake occurs. I present a summary about the CSZ tectonics on a 316th … Continue reading
Earthquake Report: Gorda!
There was just a pair of earthquakes near the Gorda rise. There was first an earthquake of magnitude M = 5.0, followed by a M = 4.9. The 5.0 appears to be within the GP, but the 4.9 seems to … Continue reading
Posted in cascadia, College Redwoods, earthquake, education, Extension, geology, gorda, HSU, humboldt, pacific, plate tectonics, strike-slip, Transform
Cascadia subduction zone: 316 years ago tonight!
In commemoration of the last known Cascadia subduction zone earthquake, I present a summary background material here. Since last years commemoration, there have been a few additions. I made some updates on 2018.01.26. Most notably was a pair of articles … Continue reading
Posted in cascadia, College Redwoods, education, geology, gorda, HSU, humboldt, Japan, pacific, plate tectonics, subduction, tsunami
Earthquake Report: Mediterranean!
We just had a M 6.1 earthquake and a few aftershocks (M 4-5) in the western Mediterranean, Here is the USGS website for this earthquake. Here is a map showing the 5 largest earthquakes as circles. There is a legend … Continue reading
Posted in College Redwoods, earthquake, education, europe, geology, HSU, plate tectonics, strike-slip, Transform
Earthquake Report: Alaska!
Early this morning, we had a M 7.1 earthquake in the Cook Inlet of Alaska. Here is the USGS web page for this earthquake. Due to the magnitude and depth for this earthquake, there is no tsunami risk for CA/OR/WA. … Continue reading
Posted in alaska, College Redwoods, geology, HSU, plate tectonics, strike-slip, subduction
Cascadia Update: new tsunami simulation!
The NOAA/NWS/Pacific Tsunami Warning Center has updated their animation of the simulation of the 1700 “Orphan Tsunami.” Source: Nathan C. Becker, Ph.D. nathan.becker at noaa.gov I provide some other background information about Cascadia here: Cascadia’s 315th Anniversary 2015.01.26 Earthquake Information … Continue reading
Earthquake Report: Rivera fracture zone, Mexico!
We just had an earthquake offshore of Colima, Mexico. This earthquake appears associated with the Rivera fracture zone (RFZ), a transform plate boundary separating the Rivera plate to the north and the Pacific plate to the south. The RFZ connects … Continue reading
Posted in College Redwoods, earthquake, education, geology, HSU, mexico, strike-slip, Transform
Hoax Alert: Cascadia Buoy!
Today there was a bantering about a buoy several hundred miles offshore of Oregon. A website had posted a hoax about how the buoy data suggested that there was movement along the Cascadia subduction zone. These hoaxes happen rather frequently. … Continue reading
Posted in cascadia, College Redwoods, earthquake, education, geology, gorda, HSU, humboldt, pacific, plate tectonics, subduction, tsunami