Glacial long period seismic events at Katla volcano, Iceland

Deformation Due to Magma Movement and Ice Unloading at Katla Volcano, Iceland, Detected by Persistent Scatterer Insar

Katla volcano is situated in the south of Iceland, and is largely covered by the Mýrdalsjökull ice cap. Historically, Katla is one of the most active of Iceland’s volcanoes, with 20 eruptions in the last 1100 years, the last one being in 1918. The proximity of populated areas and international flight paths makes prediction of the timing and character of any future eruption particularly importan...

Sustained long-period seismicity at Shishaldin Volcano, Alaska

V22B-12). Miller, T.P., McGimsey, R.G., Richter, D.H., Riehle, J.R., Nye, C.J., Yount, M.E., Dumoulin, J.A., 1998. Catalog of the historically active volcanoes of Alaska-Shishaldin Volcano. U.S. Geological Survey Open-File Report, 98-482. 104 pp. Moran, S.C., Stihler, S.D., Power, J.A., 2002. A tectonic earthquake sequence preceding the April–May 1999 eruption of Shishaldin Volcano, Alaska. Bul...

Corrigendum: Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano

Many volcanic systems around the world are located beneath, or in close proximity to, ice caps. Mass change of these ice caps causes surface movements, which are typically neglected when interpreting surface deformation measurements around these volcanoes. These movements can however be significant, and may closely resemble movements due to magma accumulation. Here we show such an example, from...

Crustal movements due to Icelands shrinking ice caps mimic magma in━ow signal at Katla volcano

Relative seismic velocity variations correlate with deformation at Kīlauea volcano

Seismic noise interferometry allows the continuous and real-time measurement of relative seismic velocity through a volcanic edifice. Because seismic velocity is sensitive to the pressurization state of the system, this method is an exciting new monitoring tool at active volcanoes. Despite the potential of this tool, no studies have yet comprehensively compared velocity to other geophysical obs...