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Minor earthquake: M2.8 quake has struck near Ferndale in California


Earthquake location 40.5523333S, -124.6936667WA minor earthquake with magnitude 2.8 (ml/mb) was reported 36 kilometers (22 miles) from Ferndale in California on Wednesday. Exact location of event, longitude -124.6936667 West, latitude 40.5523333 North, depth = 23.9 km. Global time and date of event 23/09/15 / 2015-09-23 22:46:21 / September 23, 2015 @ 10:46 pm UTC/GMT. The temblor was detected at 14:46:21 / 2:46 pm (local time epicenter). Id of earthquake: nc72528786. Event ids that are associated: nc72528786. The earthquake occurred at a depth of 23.9 km (15 miles) below the earth’s surface.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was McKinleyville, Arcata, Bayside. Nearby country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 53 km (33 miles) from Eureka (c. 27 200 pop), 62 km (39 miles) from Arcata (c. 17 200 pop), 62 km (39 miles) from Bayside (c. 17 100 pop), 66 km (41 miles) from McKinleyville (c. 15 200 pop), 46 km (28 miles) from Fortuna (c. 11 900 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days fourty-seven earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 1,300,000 minor quakes in the world each year.

Did you feel anything?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 36 km W of Ferndale, California.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -124.6936667° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.5523333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 23.9 km Depth of the event in kilometers.
Place 36km W 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 2015-09-23 22:46:21 Time when the event occurred. UTC/GMT
Updated 2015-09-24 16:40:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 reviewed 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 121 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 11 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6776 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 311 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mh The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72528786 Id of event.
Event Code 72528786 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72528786, A comma-separated list of event ids that are associated to an event.

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