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Minor earthquake: M2.8 quake has struck near Willits in CA


Earthquake location 39.4138336S, -123.3191681WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Monday, 3 kilometers (2 miles) from Willits in CA. Exact location of earthquake, -123.3191681° West, 39.4138336° North, depth -0.7 km. The epicenter of the earthquake was roughly -0.7 km (-0 miles) below the earth’s surface. Id of earthquake: nc72957291. Event ids that are associated: nc72957291. The temblor was detected at 17:32:44 / 5:32 pm (local time epicenter). Exact time and date of event in UTC/GMT: 23/01/18 / 2018-01-23 01:32:44 / January 23, 2018 @ 1:32 am.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Cloverdale, Fort Bragg, Ukiah. The epicenter was 31 km (19 miles) from Ukiah (c. 16 100 pop), 72 km (45 miles) from Cloverdale (c. 8 600 pop), 42 km (26 miles) from Fort Bragg (c. 7 300 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

Each year there are an estimated 1,300,000 minor earthquakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days one, in the past 30 days one and in the last 365 days twenty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

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. 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: 3 km E of Willits, CA.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -123.3191681° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.4138336° North Decimal degrees latitude. Negative values for southern latitudes.
Depth -0.7 km Depth of the event in kilometers.
Place 3km E of Willits, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-01-23 01:32:44 Time when the event occurred. UTC/GMT
Updated 2018-01-23 01:40:25 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 16 The total number of felt reports
CDI 3.8 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 127 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 25 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.05686 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.32 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 118 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72957291 Id of event.
Event Code 72957291 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72957291, A comma-separated list of event ids that are associated to an event.

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