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Light earthquake: M4.4 quake has struck near Devore in California


Earthquake location 34.190834S, -117.4111633WA light earthquake with magnitude 4.4 (ml/mb) was detected on Tuesday, 4 kilometers (2 miles) from Devore in California. Exact location of event, longitude -117.4111633 West, latitude 34.190834 North, depth = 5.56 km. Global time and date of event 30/12/15 / 2015-12-30 01:48:57 / December 30, 2015 @ 1:48 am UTC/GMT. Unique identifier: ci37507576. Ids that are associated to the event: ci37507576, at00o05edk, us10004ac5. The earthquake was roughly at a depth of 5.56 km (3 miles). The temblor was detected at 17:48:57 / 5:48 pm (local time epicenter). A tsunami warning has been issued near Devore in California (Does not indicate if a tsunami actually did or will exist).

Earthquake epicenter was 78 km (49 miles) from Los Angeles (c. 3 792 600 pop), 86 km (53 miles) from Long Beach (c. 462 300 pop), 61 km (38 miles) from Anaheim (c. 336 300 pop), 65 km (40 miles) from Santa Ana (c. 324 500 pop), 26 km (16 miles) from Riverside (c. 303 900 pop), 69 km (43 miles) from Irvine (c. 212 400 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Lomita, Torrance, Century City. Country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days seven and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 4 km SSW of Devore, California.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -117.4111633° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.190834° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5.56 km Depth of the event in kilometers.
Place 4km SSW of Devore, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-30 01:48:57 Time when the event occurred. UTC/GMT
Updated 2015-12-30 02:15:43 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 2453 The total number of felt reports
CDI 5.4 The maximum reported intensity for the event.
MMI 6.16 The maximum estimated instrumental intensity for the event.
Alert Level green 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 838 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 ,ci,at,us, A comma-separated list of network contributors.
Number of Stations Used 114 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1155 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.27 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 27 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mw The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ci37507576 Id of event.
Event Code 37507576 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ci37507576,at00o05edk,us10004ac5, A comma-separated list of event ids that are associated to an event.

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