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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.85 mag, 14 km SW of Ferndale, California


Earthquake location 40.4925003S, -124.3980026WA minor earthquake magnitude 3.85 (ml/mb) strikes 14 kilometers (9 miles) from Ferndale in California on Friday. Exact time and date of event in UTC/GMT: 22/09/17 / 2017-09-22 23:17:19 / September 22, 2017 @ 11:17 pm. Exact location of event, depth 25.43 km, -124.3980026° West, 40.4925003° North. All ids that are associated to the event: nc72897116. Unique identifier: nc72897116. The earthquake occurred at a depth of 25.43 km (16 miles) below the earth’s surface. The 3.85-magnitude earthquake was detected at 15:17:19 / 3:17 pm (local time epicenter).

Country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the earthquake was 40 km (25 miles) from Eureka (c. 27 200 pop), 49 km (31 miles) from Arcata (c. 17 200 pop), 48 km (30 miles) from Bayside (c. 17 100 pop), 56 km (35 miles) from McKinleyville (c. 15 200 pop), 23 km (15 miles) from Fortuna (c. 11 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was McKinleyville, Arcata, Bayside.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days four and in the last 365 days fourty-three earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor earthquakes in the world each year.

Questions or comments?

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: 14 km SW of Ferndale, California.

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More information

Parameter Value Description
Magnitude 3.85 mb The magnitude for the event.
Longitude -124.3980026° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.4925003° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.43 km Depth of the event in kilometers.
Place 14km SW of Ferndale, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-22 23:17:19 Time when the event occurred. UTC/GMT
Updated 2017-09-22 23:26:54 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 21 The total number of felt reports
CDI 3.4 The maximum reported intensity for the event.
MMI 3.47 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 235 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 0.04916 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.06 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 227 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 nc72897116 Id of event.
Event Code 72897116 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72897116, A comma-separated list of event ids that are associated to an event.

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