Posts treating: "earthquakes"
Thursday, 05 May 2016
A magnitude 3.8 earthquake struck at 06:49 a.m. this morning in the area of northwest Arizona that has seen a continuing swarm of over 55 earthquakes that started March 28. This is the largest event yet recorded in the swarm sequence, just surpassing the M=3.7 event of April 17.
There are reports of the tremor being felt in Arizona and Nevada. There are no reports of damage.
I'm scheduled to be on the syndicated radio show "Rosie on the House" with host Rosie Romero, tomorrow morning, April 30, starting at about 7:10 a.m., to talk about the recent swarms of earthquakes in Arizona, and the AZGS project to identify all the landslides in the state. [Right, map of known landslides in Arizona. Credit, AZGS]
We will also talk about preparedness for
AZGS put out a news release today on the earthquake swarm in northwest Arizona that reported 42 earthquakes have been detected since March 28. That was out of date very quickly. There was another event just before midnight on the 18th (ML=1.3) and a ML=2.3 just after noon today. Our colleagues at the Nevada Seismic Laboratory who are providing key data on earthquake locations say this
Every few years (or months) there is a flurry of activity, and everyone gets hot and bothered and worried that the world is about to come apart. There's concern, even panic, and then things settle down a bit and the subject gets forgotten for another couple of years (or months).
Oh, you thought I was talking about earthquakes? No, I was talking about media storm ABOUT earthquakes. There
Today (11-April-2016) at 16:49 UTC an earthquake swarm started on Tjörnes Fracture Zone. This was a short earthquake swarm and only lasted for 15 minutes before it stopped. The earthquake swarm on Tjörnes Fracture Zone. Copyright of this … Continue reading
This is the April edition of my paper round-up. Today I recommend papers on high-resolution topography data, fault mechanics, earthquake environmental/archaeological effects (liquefaction, rotated objects, landslides), Quaternary dating, a fault database for Asia, and tectonics of New Zealand and Martinique. Enjoy! Zhou, Y., Walker, R. T., Elliott, J. R., & Parsons, B. (2016). Mapping 3D fault geometry in earthquakes using high‐resolution topography: Examples from the 2010 El [...]
Shortly after midnight of 8-April-2016 a magnitude 4,2 earthquake took place in Bárðarbunga volcano. This earthquake activity was shallow, most depth was around 3 to 5 km. Few earthquakes took place at 7 to 11 km depth, suggesting … Continue reading
There have been 7 earthquakes recorded in northwest Arizona along the Nevada border during the past few days. The latest one of magnitude 1.0 occurred around 4 pm local time yesterday (March 30). The largest one was a magnitude 2.3 on March 28. The smallest one is only magnitude 0.8.
The cluster is visible on the map south of Mesquite. [Credit,
There was a magnitude 2.0 earthquake at 2:55 a.m. local time this morning close to yesterday's M=2.3 and 1.8 quakes. Was this an aftershock? I'm not used to seeing earthquakes as small as M=2.3 generating aftershocks, so it may be just coincidence. [Right, today's epicenter marked by orange star. Credit,
The interactive map of natural hazards in Arizona produced by AZGS, was highlighted by the American Geosciences Institute as the Map of the Day on the AGI Critical Issues website.
AZGS interactive map of natural hazards includes:
Earthquakes since 1852
Active faults and earth fissures
Fire risk index
The map is searchable by street address so that hazard
From 4-10 September, 2016, the 35th General Assembly of the European Seismological Commission (ESC) will be held in Trieste, Italy. Deadline for abstract submission is 30 April, early bird registration ends 31 May. The meeting covers a whole range of interesting topics, such as Earthquakes in regions of slow lithospheric deformation, active faulting and geodynamic data, secondary earthquake effects, regional studies and many more. Two sessions are probably especially interesting for the [...]
Over the past few weeks there has been a slight increase in earthquakes in Öræfajökull volcano. Due to glacier quake activity I’m only using earthquakes that have confirmed depth of 1,5 km or deeper. This earthquake activity is … Continue reading
Here's my letter to my Liberal MP. I know he'll get it to Justin right away.
me to Borys.Wrzesnewskyj
Hi Borys, I'm a retired guy, and former expert on earthquakes. I do my own blog and have about 32,000 readers around the world on google+. Not really that much, but one thing I have been doing is developing better earthquake equipment that is super cheap and can be made by anyone.
Iceland Volcano and Earthquake blog [2016-03-16 18:46:20]
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(29 visits) KM,NZ
Today (16-March-2016) there was an earthquake swarm around 110 km north of Kolbeinsey Island. At this location there are no registered or known volcanoes, there however might be one, but it is difficult to confirm. This earthquake activity … Continue reading
There were four earthquakes in northwest Arizona between March 7 and 11, ranging in size from magnitude 1.3 to 1.9.
March 7 - M=1.7
March 8 - M=1.3
March 11 - M=1.9
March 11 - M=1.7
This area of the state lies at the southern end of the Intermountain Seismic Belt and earthquakes of this size are common. [Right, the yellow dots mark the quake epicenters. Credit,
For the past few days it has been quiet in Iceland when it comes to earthquakes and volcano activity. Quiet period happens, they are usually followed by a spike in activity somewhere in Iceland. All quiet in Iceland … Continue reading
Today (5-March-2016) an earthquake swarm place took place around 190 km north of Kolbeinsey Island. Two largest earthquakes detected had the magnitude of 3,3. Other earthquakes where smaller in magnitude. Due to distance exact location is difficult to … Continue reading
The Wasco 4.9 earthquake, as recorded at Modesto Junior College
California has been shaken by another near-magnitude 5 earthquake, and this one is a bit odd. It hit in the Great Valley, one of the few places in California NOT known for having faults and earthquakes. It occurred near the south valley town of Wasco, and had a magnitude of 4.9, along with a couple of aftershocks as high
I got 2 raspis for Christmas by accident. I'm using one to make my super-cheap accelerometer for earthquakes, and I decided to use the other for monitoring my APC UPS, I got from Costco.
These things are tricky. First, you must reach to the back of the pile to get a fresh one. Lead-acid batteries must be refreshed in storage, and they don't do that for these. Then you must check that