Minor earthquake, 3.09 mag has occurred near Julian in California

A minor earthquake with magnitude 3.09 (ml/mb) was detected on Friday, 13 kilometers (8 miles) from Julian in California. The earthquake occurred at a depth of 9.79 km (6 miles). Id of earthquake: ci37825847. Event ids that are associated: ci37825847. Exact location of event, depth 9.79 km, -116.4776688° West, 33.145668° North. The 3.09-magnitude earthquake was detected at 18:51:24 / 6:51 pm (local time epicenter). Exact time and date of event in UTC/GMT: 09/12/17 / 2017-12-09 02:51:24 / December 9, 2017 @ 2:51 am.

Earthquake epicenter was 79 km (49 miles) from San Diego (c. 1 307 400 pop), 80 km (50 miles) from Chula Vista (c. 243 900 pop), 57 km (35 miles) from Escondido (c. 143 900 pop), 73 km (46 miles) from Temecula (c. 100 100 pop), 60 km (37 miles) from El Cajon (c. 99 500 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Terrazas del Valle, Camp Pendleton North, Chula Vista. Country/countries that might be effected, United States (c. 310 233 000 pop).

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 five, in the past 30 days seven and in the last 365 days seventy-five earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor earthquakes in the world each year.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 13 km ENE of Julian, California.

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Parameter	Value	Description
Magnitude	3.09 mb	The magnitude for the event.
Longitude	-116.4776688° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	33.145668° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	9.79 km	Depth of the event in kilometers.
Place	13km ENE of Julian, California	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-12-09 02:51:24	Time when the event occurred. UTC/GMT
Updated	2017-12-09 03:00:29	Time when the event was most recently updated. UTC/GMT
Timezone offset	-480	Timezone offset from UTC in minutes at the event epicenter.
Felt	21	The total number of felt reports
CDI	3.4	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	154	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	108	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1195	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.2 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	21	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	ci37825847	Id of event.
Event Code	37825847	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ci37825847,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.09 mag has occurred near Julian in California

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