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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.3 mag strikes near Ukiah in CA


Earthquake location 39.1635017S, -123.3901672WA minor earthquake with magnitude 3.3 (ml/mb) was reported 16 kilometers (10 miles) from Ukiah in CA on Tuesday. The 3.3-magnitude earthquake has occurred at 01:06:20 / 1:06 am (local time epicenter). Exact location of earthquake, longitude -123.3901672 West, latitude 39.1635017 North, depth = 3.55 km. The earthquake occurred at a depth of 3.55 km (2 miles). Date and time of earthquake in UTC/GMT: 01/12/20 / 2020-12-01 01:06:20 / December 1, 2020 @ 1:06 am. All ids that are associated to the event: nc73491090. Unique identifier: nc73491090.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Healdsburg, Clearlake, Cloverdale. Epicenter of the event was 16 km (10 miles) from Ukiah (c. 16 100 pop), 70 km (43 miles) from Clearlake (c. 15 300 pop), 76 km (47 miles) from Healdsburg (c. 11 300 pop), 51 km (32 miles) from Cloverdale (c. 8 600 pop), 48 km (30 miles) from Fort Bragg (c. 7 300 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days four and in the last 365 days thirty-nine 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. There are an estimated 130,000 minor earthquakes in the world each year.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 16 km W of Ukiah, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -123.3901672° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.1635017° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.55 km Depth of the event in kilometers.
Place 16km W of Ukiah, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-12-01 01:06:20 Time when the event occurred. UTC/GMT
Updated 2020-12-01 01:08:23 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 168 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 28 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.06759 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.14 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 ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc73491090 Id of event.
Event Code 73491090 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73491090, A comma-separated list of event ids that are associated to an event.

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