Hood volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 17 January-23 January 2001 (New Activity / Unrest)
The Cascades Volcano Observatory (CVO) reported that during 10-20 January a swarm of 13 earthquakes with magnitudes ranging from 0.2-2.0 occurred in an area about 4-8 km SSE of the summit at a depth of 4-7 km. This activity is not abnormal; Mount Hood averages one to two small swarms a year, with the last swarm occurring in May 2000. The current swarm consisted of fewer and smaller events than is typical, but it may not have yet ended.
Wed, 17 Jan 2001, 06:0006:00 AM | BY: VN
Sources: US Geological Survey Cascades Volcano Observatory (CVO), Associated Press
From: Global Volcanism Program, 2001. Report on Hood. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 17 January-23 January 2001. Smithsonian Institution and US Geological Survey.