On November 5, a M9.0 earthquake hit the area from Kamchatka to Sakhalin. It caused a devastating tsunami. Over 2000 people were killed in the fishing town of Severo Kurilsk, on one of the islands ...

On 15 July, a video of an explosive eruption of Erta Ale (Afar Region, Ethiopia) volcano was briefly discussed in the comment section. It was a small ash plume emerging from the summit of the ...

A repost on the region of Lassen Peak in California, originally written by Henrik in 2013 This article began as a regular piece on Lassen Peak but quickly expanded as I discovered how complex the ...

Before we move on to have a look of the geological history of Shasta, it is worth noticing that because of the meteorological conditions, quite often a difference of 60C or more between the valley to ...

The most common origin of pillow lavas is a mid-oceanic spreading centre. That has also been suggested for the Barberton rocks. But it has been questioned. The eruptions began 3.54 Gyr ago and lasted ...

The last time I wrote an article here, it was to talk about Afar Region volcanoes, and I promised more to come. This is still a project that I have in mind, but that will have to wait a little longer ...

A top-secret development on Mount Rainier came out in the open this morning. There was widespread surprise and excitement when people in Tacoma and Seattle saw a rocket launched from the summit of the ...

A top-secret development on Mount Rainier came out in the open this morning. There was widespread surprise and excitement when people in Tacoma and Seattle saw a rocket launched from the summit of the ...

The Toba eruption was twice as as Atitlan. But it produced a similar amount of sulphate in the ice cores. VEI is not everything. Climate impact With these estimates, the amount of sulphur produced by ...

Another Holocene eruption happened on the valley floor, 20 km to the south of Dofen, more or less where the current dike is happening. A dike rose under the sediments filling the rift, but it wasn’t ...

The Pahala swarm is not a single identity. It occurs in two distinct clusters, a western and an eastern one. The western one is close to Pahala itself (it is centred just south to south-southwest of ...

Lewotobi Laki-laki erupts quite regularly, on average about once a decade. These eruptions can last a long time: 6 months is not unusual and the 1921 eruption lasted almost a full year. On the VEI ...