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Light earthquake, 4.45 mag strikes near Berkeley in CA


Earthquake location 37.8608322S, -122.2421646WA light earthquake magnitude 4.45 (ml/mb) has occurred on Thursday, 3 kilometers (2 miles) from Berkeley in CA. Unique identifier: nc72948801. Ids that are associated to the event: nc72948801, at00p211m1. The 4.45-magnitude earthquake was detected at 02:39:37 / 2:39 am (local time epicenter). A tsunami warning has been issued near Berkeley in CA (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -122.2421646 West, latitude 37.8608322 North, depth = 12.97 km. Date and time of earthquake in UTC/GMT: 04/01/18 / 2018-01-04 10:39:37 / January 4, 2018 @ 10:39 am. The earthquake occurred at a depth of 12.97 km (8 miles) below the earth’s surface.

Nearest cities/city/towns to hypocenter/epicentrum was Morgan Hill, Laguna, Galt (min 5000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 66 km (41 miles) from San Jose (c. 945 900 pop), 18 km (11 miles) from San Francisco (c. 805 200 pop), 7 km (4 miles) from Oakland (c. 390 700 pop), 84 km (52 miles) from Stockton (c. 291 700 pop), 41 km (26 miles) from Fremont (c. 214 100 pop), 77 km (48 miles) from Santa Rosa (c. 167 800 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light 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 four and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel anything?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 3 km ESE of Berkeley, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.45 mb The magnitude for the event.
Longitude -122.2421646° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.8608322° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.97 km Depth of the event in kilometers.
Place 3km ESE of Berkeley, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-01-04 10:39:37 Time when the event occurred. UTC/GMT
Updated 2018-01-04 10:46:18 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 62 The total number of felt reports
CDI 4.6 The maximum reported intensity for the event.
MMI 4.91 The maximum estimated instrumental intensity for the event.
Alert Level green 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 1 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 333 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,at, A comma-separated list of network contributors.
Number of Stations Used 76 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.01341 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.09 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 31 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mw The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72948801 Id of event.
Event Code 72948801 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72948801,at00p211m1, A comma-separated list of event ids that are associated to an event.

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