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Light earthquake: M4.5 quake strikes near Castaic in California

Earthquake location 34.6196671S, -118.6299973WA light earthquake magnitude 4.5 (mg/mb) was reported Saturday, 14 kilometers (9 miles) from Castaic in California. The temblor was reported at 07:18:09 / 7:18 pm (local time epicenter) at a depth of 8.91 km (6 miles). Global time of event 2015-01-04 03:18:09 UTC/GMT. A tsunami warning has been issued near Castaic in California, according to the U.S. Geological Survey. Exact location of event, longitude -118.6299973 West, latitude 34.6196671 North, depth 8.91 km.

Close countries, United States (c. 310 233 000 pop). The epicenter was 72 km (45 miles) from Los Angeles (c. 3 792 600 pop), 91 km (57 miles) from Bakersfield (c. 347 500 pop), 61 km (38 miles) from North Glendale (c. 203 200 pop), 69 km (43 miles) from Oxnard (c. 197 900 pop), 63 km (39 miles) from Glendale (c. 191 700 pop). Nearest city, towns to epicentrum/hypocenter was Lomita, La Habra Heights, Rolling Hills Estates.

Did you feel it?

Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 14 km N of Castaic, California.

More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -118.6299973° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.6196671° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.91 km Depth of the event in kilometers.
Place 14km N of Castaic, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-01-04 03:18:09 Time when the event occurred. UTC/GMT
Updated 2015-01-04 03:23:40 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 37 The total number of felt reports
CDI 3.6 The maximum reported intensity for the event.
MMI 5.42 The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 1 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 325 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ci The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ciat A comma-separated list of network contributors.
Number of Stations Used 113 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.07729 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.3 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 19 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ci37301704 Id of event.
Event Code 37301704 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ci37301704at00nhmui8 A comma-separated list of event ids that are associated to an event.


  1. Antonio

    Van nuys. I feet it for a Second.

  2. Jim

    Felt it in Glendale, CA!

  3. Sonia

    Me too.canoga park ca.

  4. Brian

    Felt it in Santa Monica

  5. Bain

    We felt one at Chitwan National Park, Nepal. Was very light, but it went for about a minute!!!!!

  6. Raphael

    felt in Studio City… 5s shake

  7. Carlene

    We felt it in Monrovia…sitting on floor watching football game.

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