Seismological experiment at Strokkur from 2020" is a seismological experiment realized at the most active geyser on Iceland by Eva Eibl (University of Potsdam) in collaboration with Gylfi P. Hersir formerly at ISOR Iceland. The geyser is part of the Haukadalur geothermal area in south Iceland, which contains numerous geothermal anomalies, hot springs, and basins (Walter et al., 2018). Strokkur is a pool geyser and has a silica sinter edifice with a water basin on top, which is about 12m in diameter with a central tube of more than 20m depth. The aim of the seismic experiment is to monitor eruptions of Strokkur geyser from March 2020 using three broadband seismic stations (Nanometrics Trillium Compact 120s). Sensors were buried at distances of 38.8m (GE4, SE), 47.3m (GE3, SW), and 42.5m (GE2, N) from Strokkur center. Within this time period about 1 month of data is missing due to power outages. At any other times at least one station recorded the eruptions. From this dataset, converted to MSEED using Pyrocko, currently a catalogue of 506,131 water fountains was determined and further investigated in Eibl et al. (2025). In addition, Eibl et al. (2025) assessed the effect of the weather on the system including the bubble trap suspected at around 24 m depth by Eibl et al. (2021). Waveform data are available from the GEOFON data centre, under network code 2Z.
Strokkur is a pool geyser in southwest Iceland that erupts every 3.7 minutes. Eruptions start with a blue water bulge that soon turns white (bulge phase) before the water bubble bursts into a jetting water fountain (jet phase). We measured the bulge rising velocity and height and fountain rising velocity and height using video cameras and drones from GFZ and the accompanying ground motion using seismometers from the University of Potsdam. We publish the derived products from video data and seismic data here.
Geysers are accessible sites of hot pots, springs and pools that regularly erupt. To investigate the frequency and dynamics of water eruptions we setup a local broadband seismic network at Strokkur geyser, Iceland. The experiment was running for 1 year, from June 2017 to June 2018. Four broadband seismic stations (Nanometrics Trillium Compact Posthole 20s) were buried 30-40 cm deep in the ground at a distance of 39 m (G4, SE), 47 m (G3, SW), 43m (G2, N) and 96 m (G1, NE) from the center of the Strokkur pool geyser. Regular visits and 2-month interval battery replacement allowed to power the stations without solar panels, therewith limiting visibility and site impact. From this data we picked a catalog of 73,466 eruptions, that are statistically further evaluated in Eibl et al. (2020), allowing to distinguish 50,135 single eruptions, and over 20,000 multiplet eruptions (i.e. several eruptions in close succession). The mean waiting time after an eruption at Strokkur linearly increased from 3.7 to 16.4 min for single and multiplets, respectively. This data publications releases the catalog of 73,466 eruptions.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2006-01-01, including digitized historical datasets.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2005-12-01, including digitized historical datasets.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2005-11-01, including digitized historical datasets.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2005-10-01, including digitized historical datasets.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2005-09-01, including digitized historical datasets.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2005-08-01, including digitized historical datasets.
Sea level measurements, temperature and salinity data at Gedser, 54.5667 N, 11.9333 E over one month starting 2005-07-01, including digitized historical datasets.
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