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  3. Hazard boundaries for the volcanic hazard assessment of Medicine Lake volcano, California

Hazard boundaries for the volcanic hazard assessment of Medicine Lake volcano, California

Dates

First Processing Date
2007-09-27
Publication Date

Citation

Ramsey, D.W., Donnelly-Nolan, J.M., and Robinson, J.E., 2019, Hazard boundaries for the volcanic hazard assessment of Medicine Lake volcano, California: U.S. Geological Survey data release https://doi.org/10.5066/P9SDH8E6.

Summary

Medicine Lake volcano (MLV) is a very large shield-shaped volcano located in northern California where it forms part of the southern Cascade Range of volcanoes. It has erupted hundreds of times during its half-million-year history, including nine times during the past 5,200 years, most recently 950 years ago. This record represents one of the highest eruptive frequencies among Cascade volcanoes and includes a wide variety of different types of lava flows and at least two explosive eruptions that produced widespread fallout. Compared to those of a typical Cascade stratovolcano, eruptive vents at MLV are widely distributed, extending 55 km north-south and 40 km east-west. The total area covered by MLV lavas is >2,000 square kilometers, [...]

Contacts

Point of Contact :
Alaska Region, Joel E Robinson
Originator :
David W Ramsey, Julie M Donnelly-Nolan, Joel E Robinson
Metadata Contact :
Joel E Robinson
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Volcano Hazards Program Office
USGS Mission Area :
Natural Hazards

Attached Files

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MedicineLakeHazardZones_GCS_FGDC.xml
Original FGDC Metadata
View 		12.87 KB application/fgdc+xml
MedicineLakeHazards.png thumbnail 4.71 MB image/png
MedicineLakeHazardZones_GCS_FGDC.txt 12.2 KB text/plain
MedicineLakeVolcanicHazardZoneBoundaries.zip 176.92 KB application/zip

Purpose

The purpose of this data release is to delineate the boundaries of volcanic hazards from the Medicine Lake volcano, including lava flows, proximal pyroclastic and ash fall, volcanic gases, and phreatomagmatic explosions. Use caution when interpreting hazard boundaries. Hazard boundaries are not sharp, but gradational and approximately located. The degree of hazard does not change abruptly at the boundary, instead it gradually decreases away from the volcanic vent, and for lahars, floods, and lava flows it rapidly decreases with increasing elevation above the valley floor.
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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9SDH8E6

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