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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2021-612-FA

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AKA: none

Other ID: 2018 Anchorage Quake Supplemental- Lakes Phase II

Status: Completed

Organization(s): USGS, Pacific Coastal and Marine Science Center, USGS, Alaska Science Center

Funding Program(s): Other (Other), Coastal and marine earthquake, tsunami, and landslide active margin field studies (ZP00EQV)

Principal Investigator(s): Drake Singleton, Jenna Hill, Daniel Brothers

Affiliate Investigator(s): Peter Haeussler (USGS ASC), Rob Witter (USGS ASC)

Information Specialist(s): Drake Singleton, Alicia Balster-gee

Data Type(s): Location-Elevation: Navigation, Seismics: Sub Bottom Profiler, Sampling: Geology

Scientific Purpose/Goals: High resolution geophysical surveys and coring in lakes to detect geological evidence for the 2018 M7.1 Anchorage earthquake.

Vehicle(s): None

Start Port/Location: Anchorage, AK

End Port/Location: Anchorage, AK

Start Date: 2021-06-01

End Date: 2021-06-22

Equipment Used: navigation equipment, 0.5-16 kHz receiver, 0.5-16 kHz, core

Information to be Derived: Stratigraphic framework, MTD detection, age dating, and grain size.

Summary of Activity and Data Gathered: Collected 45 hammer gravity cores from Skilak, Kenai, Tustumena, and Chelatna lakes. Field tested new PCMSC's new 216 Chirp on Skilak, Kenai and Chelatna lakes. In total collected over 50 NM of seismic profiles.


Affiliate Staff:

Notes: Drake Singleton will be the point of contract for this operation.


Kenai Peninsula Lakes (Skilak, Kenai, Tustamena) and Chelatna Lake

North: 63.04328909 South: 59.68992622 West: -152.98822403 East: -148.29654694




Singleton, D.M., Brothers, D.S., Hill, J.C., Haeussler, P.J., and Witter, R.C., 2023, Geophysical and core sample data collected in lakes and fjords of southcentral Alaska following the 2018 Anchorage earthquake: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
navigation equipment --- Navigation
0.5-16 kHz receiver --- Sub Bottom Profiler
0.5-16 kHz --- Sub Bottom Profiler
core --- Biology

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