NEHRP Clearinghouse
- Title
- Volcanic-Tectonic Earthquake Swarm at Mount Martin, Alaska, January 2006.
- File
- PB2010107022.pdf
- Author(s)
- Dixon, J. P.; Power, J. A.
- Source
- July 14, 2009, 24 p.
- Identifying Number(s)
- USGS-PP-1760-D
- Abstract
- On January 8, 2006, a swarm of volcanic-tectonic earthquakes began beneath Mount Martin at the southern end of the Katmai volcanic cluster. This was the first recorded swarm at Mount Martin since continuous seismic monitoring began in 1996. The number of located earthquakes increased during the next four days, reaching a peak on January 11. For the next two days, the seismic activity decreased, and on January 14, the number of events increased to twice the previous days total. Following this increase in activity, seismicity declined, returning to background levels by the end of the month. The Alaska Volcano Observatory located 860 earthquakes near Mount Martin during January 2006. No additional signs of volcanic unrest were noted in association with this earthquake swarm.
- Keywords
- Sesimic waves; Tectonics; Volcanoes; Alaska; Monitoring; Mount Martin (Alaska); Velocity; Earthquakes