Aliso Canyon Earthquake Observatory (R2012-00152-[5], CUP 201200014, ENV201200020)


SCH Number
Lead Agency
Los Angeles County
Document Title
Aliso Canyon Earthquake Observatory (R2012-00152-[5], CUP 201200014, ENV201200020)
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Vacant land adjacent to National Forest/Heavy Agricultural (A-2) / Non-Urban I (N1)

Document Description
The project involves the construction and operation of a new earthquake observatory in a remote, undeveloped area of Acton. A conditional use permit (CUP) is required for observatories in the A-2 (Heavy Agricultural) zone by the Los Angeles County Code. The purpose of this facility is to measure earth movements and test instruments used in measuring earthquake activity. Scientists from the applicant's company (kinemetrics) will visit the site on an as-needed basis to retrieve tested instruments and deposit new ones. The observatory facility will not open to the public. The facility will involve the construction of a 40-foot-by-80-foot underground vault structure, approximately 10 feet below ground, consisting of eight sub-vaults, which will be used for testing seismic instruments.

Contact Information
Anthony Curzi
Los Angeles County
320 West Temple Street, Rm 1348
Los Angeles, CA 90012

Phone : (213) 974-6443


32°27'17"N 118°9'37"W
Los Angeles
Cross Streets
Aliso Canyon/Avenue Y-8
Total Acres
Parcel #
State Highways
Hwy 14
Other Location Info

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Earthquake research facility)
Local Action
Use Permit
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wildlife Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
California Air Resources Board California Department of Conservation California Department of Parks and Recreation California Department of Transportation, District 7 California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, Los Angeles Region 4 Department of Water Resources Office of Emergency Services, California Office of Historic Preservation Resources Agency California Department of Fish and Wildlife, South Coast Region 5

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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