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Channel Summary

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Context

Networks (1 time spans)

CC 2001-01-01 2599-12-31

Station Epochs (1 time spans)

OBSR 2008-09-10 2599-12-31

Channel Epochs (1 time spans)

HHN 2026-08-11T22:45:30 2599-12-31T23:59:59

CC : OBSR : -- : HHN (2026-08-11 - 2599-12-31)

Network

Map DOI

Station

OBSR

Map

Location

Channel

HHN

Instrument

Velocity Sensor

Start

2026-08-11T22:45:30 (223)

End

2599-12-31T23:59:59 (365)

Data Center

IRISDMC

Latitude

46.899719

Longitude

-121.815331

Elevation (m)

2382.0

Depth (m)

0.0 (Local depth or overburden)

Azimuth

0.0 (SEED convention: Clockwise from north, Z=0, reversed=0)

Dip

0.0 (SEED convention: From horizontal, Z=-90, reversed=90)

Sample Rate (Hz)

100.0

Units

M/S

Sensitivity

3.0171999640766555E8 @ 1.0 Hz (SEED Stage 0)

IRISDMC metadata changes:

Virtual network affiliations:

Name	Description
_PACNW	Pacific Northwest Seismic Stations
_US-REGIONAL	US Regional Networks