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2005/05/19 00:00:00 - 2007/10/10 17:44:00 Latitude: 40.6183 Longitude: -120.7279 Elevation: 1554.50 meters

Location | Geology | Vault Conditions
Instrumentation | Network | Operation Notes
Noise Characteristics | Data Availability

Location:

The site is located at the Eagle Lake Field Station, a facility administered by California State University, Chico (CSUC) and the CSUC Foundation, with support from the University of California. Eagle Lake is located 26 road miles NW of Susunville, in Lassen county of Northern California.

Eagle Lake station webpage

Geology:

lake

Vault/Borehole conditions:

Instrumentation:

Sensor	Datalogger	Start Date	End Date	SEED Channels	Location
AntennaCurrent	Q330	2005/05/19	2007/10/10	VE?
ClockPhase	Q330	2005/05/19	2007/10/10	VC?,LC?
ClockQuality	Q330	2005/05/19	2007/10/10	VC?,LC?
InputVoltage	Q330	2005/05/19	2007/10/10	VE?,VF?
Kinemetrics FBA ES-T Accel. (2 g max 10 v/g)	Q330	2005/05/19	2007/10/10	HL?,BL?,LL?
Streckeisen STS-2 VBB Tri-Axial Seismometer	Q330	2005/05/19	2007/10/10	LH?,UH?,BH?,HH?,VH?,VM?
SystemCurrent	Q330	2005/05/19	2007/10/10	VE?
SystemTemperature	Q330	2005/05/19	2007/10/10	VK?
VCOValue	Q330	2005/05/19	2007/10/10	VC?

Network:

BK (Berkeley Digital Seismic Network)

Operation Notes: (may not be current)

This section summarizes major changes in equipment or in instrumentation at ELFS.

Noise Characteristics:

The figures below are cumulative plots of power spectral density (psd) determined from the broadband channels. In each figure, the vertical component psd is plotted with blue diamonds, the north component psd with red squares, and the east component psd with green circles. The results are presented in the 5 different frequency bands, and the USGS/Albuquerque low noise model is plotted as a dashed line in each. The PSD units are in dB (decibel) relative to 1 (m/s**2)**2/Hz. The current annual plot is updated weekly.

Cumulative PSD results
1999	2000	2001	2002	2003	2004	2005

Data Availability:

BDSN waveforms and associated metadata are available at the Northern California Earthquake Data Center (NCEDC).

• Map of BDSN stations
• Table of BDSN stations
• BK Information Directory, including
  • List of station locations
  • List of available channels
    • Year/month/day format
    • Year,doy format
  • Instrument Response
    • SEED format
    • Simplified Responses
• Information on Quanterra Timing Errors
• Information on Quanterra 4120 FIR Filter changes - 6/30/2003
• Information on BH sampling rate change - 06/15/2004
• View digital seismograms

Several tools provide access to SEED format data at the NCEDC, both in terms of querying the archives and allowing data requests.

• Querying the archives
  • SeismiQuery at the NCEDC
  • NetDC Request Form
• Requesting data
  • NetDC Request Form

Help on using these tools is available.