Posts treating: "earthquakes"
Friday, 27 May 2016
On Wednesday 25-May-2016 a small earthquake swarm took place in Grímsfjall volcano (also known as Grímsvötn), none of the earthquakes that took place managed to reach the magnitude 1,0, many of the earthquakes where shallow and might be … Continue reading
Today (20-May-2016) a magnitude 4,4 earthquake took place in Bárðarbunga volcano. This is the strongest earthquake so far since the end of the eruption in February-2015. This earthquake swarm also had two magnitude 3,3 earthquakes. Other earthquakes where … Continue reading
Two earthquakes in northwest Arizona demonstrate the swarm activity is not over yet. A magnitude 1.7 earthquake occurred just before midnight, followed by a magnitude 2.0 event at 10:21 a.m. local time this morning. It's been a few days with no reported activity. [Right, red dot marks the epicenter of the magnitude 2.0 event, the orange dot shows the smaller quake. The red lines are
Now, I'm only doing these for my retired colleagues, so they can have a laugh. I was the last paid geotech engineer in Ontario, and I had to quickly go to earthquakes when all infrastructure builds ended. As well, with cloth and tensar it became child's play to put up a retaining wall, which was the hard-core geotech's bread and butter. There are no tricky foundations in Ontario, and
Donations Please remember to support my work with donations. My main job in this writing is to convert hard to read data about earthquakes or volcanoes into human readable format. It might not sound like a lot, but … Continue reading
Today’s paper round-up covers a very wide spectrum of earthquake related studies. We have work on tsunamis, turbidites, and lake paleoseismology, paleoseismological data from Asia, Archaeoseismology, mud volcanoes, the ESI-2007 scale, and an explanation on what the rise of the Andes is driven by. Enjoy reading! Melnick, D. (2016). Rise of the central Andean coast by earthquakes straddling the Moho. Nature Geoscience. Ansberque, C., Bellier, O., Godard, V., Lasserre, C., Wang, M., [...]
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.