The Living Force
Some images of the earthquake...
Increase in the number of earthquakes in the Gulf of California during the month of November
During Oct 2021, Baja California was shaken by 3 quakes of magnitude 4.0 or above, 96 quakes between 3.0 and 4.0, and 20 quakes between 2.0 and 3.0. There were also 133 quakes below magnitude 2.0 which people don't normally feel.
In November, Baja California has been shaked by 79 quakes of magnitude 4.0 or above, 129 quakes between 3.0 and 4.0, and 23 quakes between 2.0 and 3.0. There were also 115 quakes below magnitude 2.0 which people don't normally feel.
Last week saw 5 M6 earthquakes, with the highest being two M6.3 in the Japan region and PNG.Last week saw 2 M6, with the highest being a M6.2 in Myanmar.
In the usual area, there were 3 out of 90 earthquakes worldwide equal to or greater than 4.5 and 1460 out of 1860 quakes of all sizes.
A earthquake of magnitude 3.6 hit the Grímsvötn volcanic area, under the ice cap of Vatnajökull glacier, at 6:16 am, according to vedur.is . A few aftershocks in excess of magnitude 1 followed.
A glacial outburst flood, a.k.a. jökulhlaup, from Grímsvötn peaked yesterday morning when the discharge in Gígjukvísl river reached a maximum of about 2,800 m3/sec., which is 28 times the river’s average discharge at this time of year. Still, the maximum discharge is considerably less than originally expected when scientists put the figure at 5,000 m3/sec.
The ice cap over Grímsvötn lakes has subsided a total of 77 meters, and for the past hours, it has been subsiding very slowly, meaning that the lakes have almost completely drained of meltwater.
The question now is whether the glacial outburst flood will be followed by a volcanic eruption in Grímsvötn. There are no signs of volcanic tremor, Bjarki Kaldalóns Friis, natural hazards specialist at the Icelandic Met Office, told mbl.is this morning.
The M3.6 earthquake was preceded by a tremor a minute earlier that measured 2.3. No gasses have been detected. Bjarki estimates there is a fifty-fifty chance of eruption in Grímsvötn. The area is being closely monitored. Should an eruption follow the jökulhlaup, it would not necessarily occur right away. “In 2010, half a year went by before an eruption began, whereas in 2004, it occurred when the jökulhlaup was about to peak,” Bjarki explains.
“The Grímsvötn volcanic system is ready for an eruption, but the question is whether it’s up to it. At the moment, there is no data available to sugggest an eruption is imminent, but that could suddenly change,” Bjarki stated when interviewed last night.