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Minor earthquake: M2.8 quake has struck near San Simeon in California


Earthquake location 35.8513333S, -121.3125WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Tuesday, 25 kilometers (16 miles) from San Simeon in California. Event ids that are associated to the earthquake: nc72532501. Id of event: nc72532501. The temblor was reported at 01:11:19 / 1:11 am (local time epicenter). Global time and date of event 29/09/15 / 2015-09-29 08:11:19 / September 29, 2015 @ 8:11 am UTC/GMT. The epicenter was at a depth of 6.84 km (4 miles). Exact location of event, depth 6.84 km, -121.3125° West, 35.8513333° North.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Los Osos, Gonzales, Atascadero. Earthquake epicenter was 71 km (44 miles) from Atascadero (c. 28 300 pop), 61 km (38 miles) from Paso Robles (c. 27 200 pop), 64 km (40 miles) from Soledad (c. 25 700 pop), 53 km (33 miles) from Greenfield (c. 16 300 pop), 74 km (46 miles) from Los Osos (c. 14 300 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days twenty-nine earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

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. 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: 25 km NNW of San Simeon, California.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -121.3125° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.8513333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.84 km Depth of the event in kilometers.
Place 25km NNW of San Simeon, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-29 08:11:19 Time when the event occurred. UTC/GMT
Updated 2015-09-30 23:05:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 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 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 121 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network nc The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,nc, A comma-separated list of network contributors.
Number of Stations Used 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.06185 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 150 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mh The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72532501 Id of event.
Event Code 72532501 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72532501, A comma-separated list of event ids that are associated to an event.

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