AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
About Alaska's Volcanoes | Hazards from Alaska's Volcanoes | Map & Alphabetical List | Interactive Map | Eruption Search | Volcano Search 
You are here: Home > Volcano Information

Okmok reported activity

OKMOK LINKS

SAMPLES

Webicorders

Webcams
EVENT SPECIFIC INFORMATION

Event Name : Okmok 2000 yBP

This is a questionable event.

Start: 2000 Years BP Tephrochronology

Tephrafall: BibCard
Eruption Type:Explosive
Other""

Description: From Beget and others (2005): "One of the most detailed records of explosive volcanism occurs at Kettle Cape, where 24 tephra layers were deposited since the 2,000-year-old pyroclastic flow (fig. 6 [in original text]). This record suggests that explosive eruptions large enough to put acentimeter or more of ash in coastal areas around Okmok Volcano since the second caldera-forming eruption have occurred approximately every 75 years over the last two millennia. This frequency is about twice as high as the recurrence interval estimated for explosive eruptions for the six millennia prior to the 2,000-year-old caldera-forming eruptions, suggesting that a possible increase in eruption frequency and/or explosivity began after the second caldera-forming eruption."

Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/volcanoes/activity.php
Page modified: March 30, 2017 14:36
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.