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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.29 mag, 3 km ENE of Brea, CA

Earthquake location 33.9269981S, -117.8713303WA minor earthquake with magnitude 3.29 (ml/mb) was detected on Saturday, 3 kilometers (2 miles) from Brea in CA. The earthquake occurred at a depth of 7.75 km (5 miles). Event ids that are associated to the earthquake: ci39015759. Id of event: ci39015759. Date and time of earthquake in UTC/GMT: 28/12/19 / 2019-12-28 17:23:32 / December 28, 2019 @ 5:23 pm. Exact location of earthquake, -117.8713303° West, 33.9269981° North, depth 7.75 km. The 3.29-magnitude earthquake was detected at 09:23:32 / 9:23 am (local time epicenter).

Event epicenter was 37 km (23 miles) from Los Angeles (c. 3 792 600 pop), 34 km (21 miles) from Long Beach (c. 462 300 pop), 11 km (7 miles) from Anaheim (c. 336 300 pop), 20 km (13 miles) from Santa Ana (c. 324 500 pop), 44 km (27 miles) from Riverside (c. 303 900 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Santa Clarita, Yucaipa, West Hills. Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days five and in the last 365 days fourty-two earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 3 km ENE of Brea, CA.

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More information

Parameter Value Description
Magnitude 3.29 mb The magnitude for the event.
Longitude -117.8713303° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.9269981° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.75 km Depth of the event in kilometers.
Place 3km ENE of Brea, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-12-28 17:23:32 Time when the event occurred. UTC/GMT
Updated 2019-12-28 17:27:26 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 4.1 The maximum reported intensity for the event.
MMI 3.76 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 automatic Indicates whether the event has been reviewed by a human.
Tsunami 0 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 168 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, A comma-separated list of network contributors.
Number of Stations Used 134 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.04726 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 16 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 ci39015759 Id of event.
Event Code 39015759 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ci39015759, A comma-separated list of event ids that are associated to an event.

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