Minor earthquake: M3.9785 quake has struck near Willits in California

A minor earthquake magnitude 3.9785 (ml/mb) has occurred on Wednesday, 11 kilometers (7 miles) from Willits in California. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -123.2268 West, latitude 39.3862 North, depth = 8 km. The 3.9785-magnitude earthquake has occurred at 01:59:33 / 1:59 am (local time epicenter). The epicenter of the earthquake was roughly 8 km (5 miles) below the earth’s surface. Global time and date of event 19/08/20 / 2020-08-19 01:59:33 / August 19, 2020 @ 1:59 am UTC/GMT. Id of earthquake: ew1597802373. Event ids that are associated: ew1597802373.

Earthquake epicenter was 26 km (16 miles) from Ukiah (c. 16 100 pop), 70 km (44 miles) from Clearlake (c. 15 300 pop), 67 km (42 miles) from Cloverdale (c. 8 600 pop), 50 km (31 miles) from Fort Bragg (c. 7 300 pop), 90 km (56 miles) from Willows (c. 6 200 pop), 86 km (54 miles) from Hidden Valley Lake (c. 5 600 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Willows, Hidden Valley Lake, Clearlake (min 5000 pop).

There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been six, in the last 10 days eight, in the past 30 days eight 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.

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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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 11 km ESE of Willits, California.

More information

Parameter	Value	Description
Magnitude	3.9785 mb	The magnitude for the event.
Longitude	-123.2268° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	39.3862° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8 km	Depth of the event in kilometers.
Place	11 km ESE of Willits, California	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-08-19 01:59:33	Time when the event occurred. UTC/GMT
Updated	2020-08-19 01:59:40	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	244	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	ew	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ew,	A comma-separated list of network contributors.
Number of Stations Used	4	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance		Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap		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	ew1597802373	Id of event.
Event Code	1597802373	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ew1597802373,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

3.9785 mb

The magnitude for the event.

Longitude

-123.2268° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

39.3862° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

8 km

Depth of the event in kilometers.

Place

11 km ESE of Willits, California

Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.

Time

2020-08-19 01:59:33

Time when the event occurred. UTC/GMT

Updated

2020-08-19 01:59:40

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

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

244

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.

Sources

,ew,

A comma-separated list of network contributors.

Number of Stations Used

The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.

Horizontal Distance

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

ew1597802373

Id of event.

Event Code

1597802373

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,ew1597802373,

A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.9785 quake has struck near Willits in California

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