Seismicity increased slowly since February 1991 and peaked in an earthquake swarm at Gede volcano between 29 April and 1 May 1991, but was not followed by an eruption. On its peak on 29-30 April, about 100 volcanic earthquakes (40 deep and 60 shallow) were recorded per day, an increase of a factor of 10 compared to normal levels. On 30th April 3 shocks were felt. Seismic activity returned to normal levels in May.
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1-3 day excursions If you're interested in volcanoes, there are a number of excursions you should not miss if you're in the area: hike to the craters of Stromboli volcano, climb Etna volcano, get to know the unique volcanic history of Santorini - some examples of shorter (1-3 days) tours and excursions we offer.
Ijen volcano photos Ijen volcano in East Java is famous for its turquoise acid crater lake and the large sulfur deposits that are being mined by local workers. At night, the scene is illuminated by ghostly blue flames, as sulfur ignites.
Private geology tour on Santorini We offer you private geology tours to get to know the extraordinary geology and natural history of the island, but also aspects of the deep connection with its cultural history and archaeology.
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).
Improved multilanguage support
Thanks to your past donations, these features have been added recently:
Earthquake archive from 1900 onwards
Detailed quake stats
Additional seismic data sources
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