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Light earthquake, 4.15 mag was detected near Aromas in CA

Earthquake location 36.8681679S, -121.6113358WA light earthquake magnitude 4.15 (ml/mb) has occurred on Sunday, 4 kilometers (2 miles) from Aromas in CA. All ids that are associated to the event: ew1610856087, nc73512355, at00qn28id. Unique identifier: nc73512355. The temblor was detected at 04:01:27 / 4:01 am (local time epicenter). Global time and date of event 17/01/21 / 2021-01-17 04:01:27 / January 17, 2021 @ 4:01 am UTC/GMT. The earthquake occurred at a depth of 7.85 km (5 miles). A tsunami warning has been issued near Aromas in CA (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -121.6113358 West, latitude 36.8681679 North, depth = 7.85 km.

Nearest cities/city/towns to hypocenter/epicentrum was Livermore, Pleasanton, San Carlos (min 5000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 58 km (36 miles) from San Jose (c. 945 900 pop), 83 km (51 miles) from Fremont (c. 214 100 pop), 22 km (13 miles) from Salinas (c. 150 400 pop), 67 km (42 miles) from Sunnyvale (c. 140 100 pop), 62 km (39 miles) from Santa Clara (c. 116 500 pop), 92 km (57 miles) from Livermore (c. 81 000 pop).

Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days ten and in the last 365 days fifty-four earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 4 km SE of Aromas, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.15 mb The magnitude for the event.
Longitude -121.6113358° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8681679° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.85 km Depth of the event in kilometers.
Place 4km SE of Aromas, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-17 04:01:27 Time when the event occurred. UTC/GMT
Updated 2021-01-17 04:06:44 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 29 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 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 275 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 ,ew,nc,at, A comma-separated list of network contributors.
Number of Stations Used 69 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.07278 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.12 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 36 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 nc73512355 Id of event.
Event Code 73512355 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ew1610856087,nc73512355,at00qn28id, A comma-separated list of event ids that are associated to an event.

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