Minor earthquake, 3.35 mag strikes near Lake Elsinore in CA

A minor earthquake magnitude 3.35 (ml/mb) has occurred on Monday, 10 kilometers (6 miles) from Lake Elsinore in CA. Global time and date of event 21/09/20 / 2020-09-21 13:20:38 / September 21, 2020 @ 1:20 pm UTC/GMT. The temblor was detected at 13:20:38 / 1:20 pm (local time epicenter). Exact location of earthquake, longitude -117.4300003 West, latitude 33.7050018 North, depth = 8.52 km. Event ids that are associated to the earthquake: ci38697738. Id of event: ci38697738. The epicenter of the earthquake was roughly 8.52 km (5 miles) below the earth’s surface.

Earthquake epicenter was 71 km (44 miles) from Long Beach (c. 462 300 pop), 47 km (29 miles) from Anaheim (c. 336 300 pop), 41 km (25 miles) from Santa Ana (c. 324 500 pop), 28 km (17 miles) from Riverside (c. 303 900 pop), 37 km (23 miles) from Irvine (c. 212 400 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Big Bear City, Phelan, Hesperia (min 5000 pop).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 10 km WNW of Lake Elsinore, CA.

More information

Parameter	Value	Description
Magnitude	3.35 mb	The magnitude for the event.
Longitude	-117.4300003° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	33.7050018° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8.52 km	Depth of the event in kilometers.
Place	10km WNW of Lake Elsinore, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-09-21 13:20:38	Time when the event occurred. UTC/GMT
Updated	2020-09-21 13:28:53	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	4	The total number of felt reports
CDI	4.3	The maximum reported intensity for the event.
MMI	3.72	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	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	174	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	123	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.05064	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	26	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	ci38697738	Id of event.
Event Code	38697738	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ci38697738,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.35 mag strikes near Lake Elsinore in CA

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