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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.28 quake has struck near Rockport in CA

Earthquake location 39.9048347S, -123.7736664WA minor earthquake with magnitude 3.28 (ml/mb) was reported 19 kilometers (12 miles) from Rockport in CA on Saturday. Event ids that are associated to the earthquake: nc73497020. Id of event: nc73497020. Exact time and date of earthquake 12/12/20 / 2020-12-12 19:20:12 / December 12, 2020 @ 7:20 pm UTC/GMT. Exact location of event, longitude -123.7736664 West, latitude 39.9048347 North, depth = 2.13 km. The temblor was reported at 19:20:12 / 7:20 pm (local time epicenter). The earthquake was roughly at a depth of 2.13 km (1 miles).

Nearest cities/city/towns to hypocenter/epicentrum was Fort Bragg (min 5000 pop). Event epicenter was 51 km (32 miles) from Fort Bragg (c. 7 300 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

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

Questions or comments?

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. 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: 19 km N of Rockport, CA.

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More information

Parameter Value Description
Magnitude 3.28 mb The magnitude for the event.
Longitude -123.7736664° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.9048347° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.13 km Depth of the event in kilometers.
Place 19km N of Rockport, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-12-12 19:20:12 Time when the event occurred. UTC/GMT
Updated 2020-12-12 19:26:05 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 166 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 24 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0874 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 137 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 nc73497020 Id of event.
Event Code 73497020 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73497020, A comma-separated list of event ids that are associated to an event.

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