Earthquake Catalogs

SCSN Catalog Search (1932-Present)

NOTE: The catalog search pages will be undergoing maintenance on November 17, 2025 from 10 am Pacific Time onwards. The expected downtime is 1 hour.

Information about the catalog: K Hutton et. al, BSSA (2010)
Change History for the Southern California Earthquake Catalog
General catalog information - includes curation status information

Please limit your search to smaller time periods. If your search spans multiple years consider downloading text files of the catalog.

Search by:

• Location, Mag, and Time
• Event ID
• Polygon
• Radius
• Multi-Mags
• Moment Tensors
• Focal Mechanisms

Output Format:

SCEDC Catread XML QuakeML QuakeML W/ Pick (file download only) KML (Google Earth) Google Map (w/ ability to refine with polygon search) CNSS Simpson Map Hypoinverse 2000 Hypo71 2000 Hypoinverse 2000 Phase SCSN with comments

Search Parameters

Start Date

Year

Month

Day

Hour

Min

Sec

End Date

Year

Month

Day

Hour

Min

Sec

Minimum magnitude:

Maximum magnitude:

Minimum depth (km):

Maximum depth (km):

Event type:

Earthquake Quarry blast Nuclear test Sonic blast Shot Subnet Trigger Long Period Explosion Unknown

Geographic type:

Local Regional Teleseism

Polygon Search of the SCSN Catalog

Send Output to File?

yes

no, output to web page

Submit Reset Values

The earthquake catalog and associated data archived at the SCEDC are collected by the Southern California Seismic Network (SCSN), a cooperative project of Caltech and the USGS.