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Location: Carlisle volcano, near Cleveland volcano, Alaska
Installation Date: September 2022 (AVERT project)
Instrumentation:
- Trillium Compact 120 s posthole analogue seismometer
- 24-bit Centaur digitiser (Nanometrics Incorporated)
- Direct burial method at ~1 m depth
- Aligned with true north using compass compensated for magnetic declination
Data Collection:
- Continuous broadband seismic data
- High sensitivity for detecting micro-earthquakes
- Part of permanent monitoring network
Network Role:
- One of 5 permanent broadband seismometers at Cleveland
- Contributes to Cleveland being officially “monitored” by AVO
- Provides broader coverage of the Islands of Four Mountains region
Site Characteristics:
- Located on Carlisle volcano in the Islands of Four Mountains group
- Part of the central Aleutian Arc volcanic system
- Adjacent to Cleveland volcano for enhanced monitoring coverage
Data Access:
- Continuous seismic data available from EarthScope Data Management Center
- Network code: AV (https://doi.org/10.7914/SN/AV)
- Close to 100% data recovery rate
Additional Infrastructure:
- Part of AVERT monitoring network
- Contributes to comprehensive monitoring of the Islands of Four Mountains
