Observing a Helicorder (Seismic Recording Instrument), 1975

About This Item

An individual observes a helicorder, an instrument used to continuously record seismic activity. The rotating drum displays ground motion over time as detected by a seismograph station, with reference to Greenwich Mean Time shown above the instrument.

Identifier
TP-ATA-1300
Date
1975
Context

Credits: Some descriptions were developed with the assistance of ChatGPT, an AI language model by OpenAI.

Geographic Coverage
San Francisco, CA
Temporal Coverage
1970s
Type
Still Image
Source
San Francisco State University Archives
Rights
Public
Views
239

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