Redoubt volcano, Alaska - 2009/03/15 ash/steam event (with sound)

The small ash/steam event that made AVO increase the Aviation Alert Level for Redoubt volcano from yellow to orange. Footage is from the Hut webcam, 12 Km South of Redoubt crater, and sound is from seismic data recorded from RSO seismic station (downloaded via VASE 2.8 from IRIS). Playing speed is 160x.

The weird sound that can be heard at 00:16 is a calibration signal.

Official statement from Alaska Volcano Observatory:

"Seismic activity at Redoubt has increased since about 13:00 AKDT and is continuing. An AVO observation flight reported that a steam and ash plume rose as high as 15,000 ft above sea level and produced minor ash fall on the upper south flank of Redoubt. Last reports are that the plume is now mainly steam.

Based on thsi change in activity AVO is increasing the level of concern and alert level to ORANGE/WATCH.

It does not appear at this time that a significant eruption is likely in the short term, but conditions may evolve rapidly.

AVO is monitoring the situation closely and the AVO operations center in Anchorage is now resuming 24 hour per day staffing."

http://www.avo.alaska.edu/activity/Redoubt.php

Category:

Science & Technology

Tags:

• alaska
• redoubt
• volcano
• eruption
• ash
• steam
• usgs
• avo
• alert
• level
• orange
• earthquake
• sound
• webcam
• timelapse