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Networks (1 time spans)

CI 1926-01-01 2599-12-31

Station Epochs (1 time spans)

THC 1981-03-31 2599-12-31

CI : THC (1981-03-31 - 2599-12-31)

Network

CI

Map DOI

Station

THC

Site Name

Tehachapi

Start

1981-03-31T00:00:00 (090)

End

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

Data Center

IRISDMC
NCEDC
SCEDC

Latitude

34.90853

Longitude

-118.66443

Elevation (m)

1688.0

Instruments

2026-04-01T21:48:40 (091) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
--	Accelerometer HNE 100.0Hz IRISDMC \| HNN 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LNE 1.0Hz IRISDMC \| LNN 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC Calibration Input ACQ 100.0Hz IRISDMC NCEDC SCEDC Chksum Errors ACK 0.1Hz IRISDMC NCEDC SCEDC Clock Lock Loss LCL 1.0Hz IRISDMC NCEDC SCEDC Clock Phase LCE 1.0Hz IRISDMC NCEDC SCEDC Clock Quality LCQ 1.0Hz IRISDMC NCEDC SCEDC Clock Status ACE 1.0Hz IRISDMC NCEDC SCEDC Comm Attempt Count ACA 0.1Hz IRISDMC NCEDC SCEDC Comm Duty Cycle ADT 0.1Hz IRISDMC NCEDC SCEDC Comm Efficiency ACF 0.1Hz IRISDMC NCEDC SCEDC Comm Ok Count ACS 0.1Hz IRISDMC NCEDC SCEDC Data Gap Count ADG 0.1Hz IRISDMC NCEDC SCEDC Data Latency ADL 0.1Hz IRISDMC NCEDC SCEDC Data Missing AMD 0.1Hz IRISDMC NCEDC SCEDC Data Receive Rate ARD 0.1Hz IRISDMC NCEDC SCEDC Data Sent Rate AWR 0.1Hz IRISDMC NCEDC SCEDC Data Throughput ATH 0.1Hz IRISDMC NCEDC SCEDC Dust Bits LED 1.0Hz IRISDMC NCEDC SCEDC EPISENSOR ES-T,Accelerometer,KINEMETRICS HNE 100.0Hz NCEDC \| HNN 100.0Hz NCEDC \| HNZ 100.0Hz NCEDC LNE 1.0Hz NCEDC \| LNN 1.0Hz NCEDC \| LNZ 1.0Hz NCEDC Gps Antenna Current VEA 0.1Hz IRISDMC NCEDC SCEDC Gps Antenna Voltage VAX 0.1Hz IRISDMC NCEDC SCEDC Gps Control Bits LEC 1.0Hz IRISDMC NCEDC SCEDC Gps Elevation LEV 1.0Hz IRISDMC NCEDC SCEDC Gps Fix Status LFT 1.0Hz IRISDMC NCEDC SCEDC Gps Latitude LAT 1.0Hz IRISDMC NCEDC SCEDC Gps Longitude LON 1.0Hz IRISDMC NCEDC SCEDC Gps Sens Power Bits LEP 1.0Hz IRISDMC NCEDC SCEDC Input Output 1 VEO 0.1Hz IRISDMC NCEDC SCEDC Input Output 2 VG1 0.1Hz IRISDMC NCEDC SCEDC Input Output 3 VG2 0.1Hz IRISDMC NCEDC SCEDC Ip Change Count ANI 0.1Hz IRISDMC NCEDC SCEDC Isolated Dc Voltage VEI 0.1Hz IRISDMC NCEDC SCEDC KINEMETRICS EPISENSOR ES-T S/N:133-IS Accelerometer HNE 100.0Hz SCEDC \| HNN 100.0Hz SCEDC \| HNZ 100.0Hz SCEDC LNE 1.0Hz SCEDC \| LNN 1.0Hz SCEDC \| LNZ 1.0Hz SCEDC L-4C VERTICAL,Velocity Sensor,SERCEL EHZ 100.0Hz NCEDC Ll Data Latency ALL 0.1Hz IRISDMC NCEDC SCEDC Log LOG 1.0Hz IRISDMC NCEDC SCEDC Misc Bits LEM 1.0Hz IRISDMC NCEDC SCEDC Negative Analog Voltage VEN 0.1Hz IRISDMC NCEDC SCEDC Opaque Configuration File OCF 1.0Hz IRISDMC NCEDC SCEDC Packet Buffer Usage VPB 0.1Hz IRISDMC NCEDC SCEDC Packet Count APK 0.1Hz IRISDMC NCEDC SCEDC Poc Count APO 0.1Hz IRISDMC NCEDC SCEDC Reboot Count ABT 0.1Hz IRISDMC NCEDC SCEDC SERCEL L-4C VERTICAL S/N:357 Velocity Sensor EHZ 100.0Hz SCEDC Satellite Count LSU 1.0Hz IRISDMC NCEDC SCEDC Sensor A Bits LEA 1.0Hz IRISDMC NCEDC SCEDC Sensor A Current VCA 0.1Hz IRISDMC NCEDC SCEDC Sensor B Bits LEB 1.0Hz IRISDMC NCEDC SCEDC Sensor B Current VCB 0.1Hz IRISDMC NCEDC SCEDC Sensor Serial Bits LES 1.0Hz IRISDMC NCEDC SCEDC Seq Error Count ASQ 0.1Hz IRISDMC NCEDC SCEDC Status Delay ASL 0.1Hz IRISDMC NCEDC SCEDC System Current VEC 0.1Hz IRISDMC NCEDC SCEDC System Humidity VI1 0.1Hz IRISDMC NCEDC SCEDC System Temperature VKI 0.1Hz IRISDMC NCEDC SCEDC System Voltage VEP 0.1Hz IRISDMC NCEDC SCEDC Ups Voltage VEU 0.1Hz IRISDMC NCEDC SCEDC Velocity Sensor EHZ 100.0Hz IRISDMC Voltage Controlled Oscillator VCO 0.1Hz IRISDMC NCEDC SCEDC
2012-05-26T00:00:00 (147) - 2026-04-01T21:48:40 (091)
Location Code	Instruments / Channels
--	Accelerometer HNE 100.0Hz IRISDMC \| HNN 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LNE 1.0Hz IRISDMC \| LNN 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC Clock Phase LCE 1.0Hz IRISDMC NCEDC SCEDC Clock Quality LCQ 1.0Hz IRISDMC NCEDC SCEDC EPISENSOR ES-T,Accelerometer,KINEMETRICS HNE 100.0Hz NCEDC \| HNN 100.0Hz NCEDC \| HNZ 100.0Hz NCEDC LNE 1.0Hz NCEDC \| LNN 1.0Hz NCEDC \| LNZ 1.0Hz NCEDC KINEMETRICS EPISENSOR ES-T S/N:133-IS Accelerometer HNE 100.0Hz SCEDC \| HNN 100.0Hz SCEDC \| HNZ 100.0Hz SCEDC LNE 1.0Hz SCEDC \| LNN 1.0Hz SCEDC \| LNZ 1.0Hz SCEDC L-4C VERTICAL,Velocity Sensor,SERCEL EHZ 100.0Hz NCEDC SERCEL L-4C VERTICAL S/N:357 Velocity Sensor EHZ 100.0Hz SCEDC System Battery Voltage LEB 1.0Hz IRISDMC NCEDC SCEDC System Current LEC 1.0Hz IRISDMC NCEDC SCEDC System Humidity LII 1.0Hz IRISDMC NCEDC SCEDC System Temperature LKI 1.0Hz IRISDMC NCEDC SCEDC System Voltage LEP 1.0Hz IRISDMC NCEDC SCEDC Velocity Sensor EHZ 100.0Hz IRISDMC
2C	Accelerometer HNE 200.0Hz IRISDMC \| HNN 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC EPISENSOR ES-T,Accelerometer,KINEMETRICS HNE 200.0Hz NCEDC \| HNN 200.0Hz NCEDC \| HNZ 200.0Hz NCEDC KINEMETRICS EPISENSOR ES-T S/N:133-IS Accelerometer HNE 200.0Hz SCEDC \| HNN 200.0Hz SCEDC \| HNZ 200.0Hz SCEDC
1981-03-31T00:00:00 (090) - 2012-05-26T00:00:00 (147)
Location Code	Instruments / Channels
--	L-4C VERTICAL,Velocity Sensor,SERCEL EHZ 100.0Hz NCEDC SERCEL L-4C VERTICAL S/N:L4_THC_VHZ_01 Velocity Sensor EHZ 100.0Hz SCEDC Velocity Sensor EHZ 100.0Hz IRISDMC

IRISDMC metadata changes:

Virtual network affiliations:

Name	Description
_US-REGIONAL	US Regional Networks
_FDSN-ALL	All FDSN Member Network Stations Available at IRIS DMC

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EarthScope Consortium operates the NSF National Geophysical Facility (NSF NGF). Any opinions, findings and conclusions, or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.

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