This is a repost from the archives, an older post by Henrik which has been updated to reflect more recent findings. Did you know there are 255 volcanoes or volcanic features listed in the US?

The highest volcano in the world is Cerro Ojos del Salado. It is a stratovolcano in South America’s Central Volcanic Zone, reaching an impressive 6893 meters above sea level (or at least above ...

The centre of South Africa is an amazing place. The long drive from Cape Town in-land is exciting for the first two hours, while the road climbs up through the mountains, past vineyards and valleys ...

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 ...

The area is much better suited to Icelandic tourism than the Blue Lagoon ever was, since it is natural, offers a much greater choice and has a great variety of landscapes and volcanic features. It is ...

This page contains useful links and graphics for the current notable event. The following is for mbl.is cameras, with a Thorbjorn focus March 2024 cams, MBL RUV operates several camera: March 2024 ...

If we track the earthquakes that are larger than 2.5Mw we end up with them peaking at about 2.1km, those that are smaller are not well defined enough to be able to pinpoint depth enough to really be ...

Kerguelen Island and the surrounding northern plateau are volcanically dormant or dead. So is the southern plateau. But the central area still has life in it. Both Heard Island and McDonald Island are ...

Collapse Like its older neighbour, Piton de la Fournaise shows evidence of frequent collapses. But its collapses are not like the usual flank collapses. They are the inverse, which leave the flank ...

As the numbers for the Hunga Tonga eruption continues to come in it is becoming ever clearer that something truly momentous happened, something not seen or heard in 139 years. With a columnar height ...

It seemed to come out of nowhere. In the midst of a quiet interlude, after the hugely damaging La Palma had ended, when the hugely touristic eruption at Fagradalsfjall failed to re-appear, and the ...

Naming Igneous rocks are named for the minerals (composition) and the size of the crystals or grains they contain. The graininess shows at what depth to magma solidified. Surface flows (lava) cool ...