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Minor earthquake, 2.8 mag has occurred near Borrego Springs in CA


Earthquake location 33.1775017S, -116.3776703WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Friday, 9 kilometers (6 miles) from Borrego Springs in CA. Exact time and date of earthquake 28/12/19 / 2019-12-28 07:11:47 / December 28, 2019 @ 7:11 am UTC/GMT. Event ids that are associated to the earthquake: ci39015247. Id of event: ci39015247. Exact location, longitude -116.3776703° West, latitude 33.1775017° North, depth = 11.21 km. The temblor was reported at 23:11:47 / 11:11 pm (local time epicenter). The earthquake was roughly at a depth of 11.21 km (7 miles).

Event epicenter was 66 km (41 miles) from Escondido (c. 143 900 pop), 69 km (43 miles) from El Cajon (c. 99 500 pop), 73 km (46 miles) from San Marcos (c. 83 800 pop), 62 km (39 miles) from Indio (c. 76 000 pop), 72 km (45 miles) from Tecate (c. 58 300 pop). Close country/countries that might be effected, Mexico (c. 112 469 000 pop), United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was La Mesa, Spring Valley, Lomas de Santa Anita.

There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days one, in the past 30 days one and in the last 365 days fifty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 9 km S of Borrego Springs, CA.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -116.3776703° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.1775017° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.21 km Depth of the event in kilometers.
Place 9km S of Borrego Springs, 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 07:11:47 Time when the event occurred. UTC/GMT
Updated 2019-12-28 07:14:14 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI 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 121 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 114 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.09632 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.22 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 24 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 ci39015247 Id of event.
Event Code 39015247 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ci39015247, A comma-separated list of event ids that are associated to an event.

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