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Minor earthquake: M2.87 quake has struck near Petrolia in CA

Earthquake location 40.3193321S, -124.4008331WA minor earthquake magnitude 2.87 (ml/mb) strikes 10 kilometers (6 miles) from Petrolia in CA on Sunday. The temblor was picked up at 19:47:00 / 7:47 pm (local time epicenter). Exact location of earthquake, longitude -124.4008331 West, latitude 40.3193321 North, depth = 17.02 km. Event ids that are associated to the earthquake: nc73162425. Id of event: nc73162425. The epicenter was at a depth of 17.02 km (11 miles). Date and time of earthquake in UTC/GMT: 08/04/19 / 2019-04-08 03:47:00 / April 8, 2019 @ 3:47 am.

Close country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 57 km (36 miles) from Eureka (c. 27 200 pop), 67 km (41 miles) from Arcata (c. 17 200 pop), 65 km (40 miles) from Bayside (c. 17 100 pop), 74 km (46 miles) from McKinleyville (c. 15 200 pop), 37 km (23 miles) from Fortuna (c. 11 900 pop). Nearest cities/city/villages to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop).

Every 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 three and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 10 km W of Petrolia, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.87 mb The magnitude for the event.
Longitude -124.4008331° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.3193321° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.02 km Depth of the event in kilometers.
Place 10km W of Petrolia, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-04-08 03:47:00 Time when the event occurred. UTC/GMT
Updated 2019-04-08 04:03:18 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.7 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 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.05419 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 249 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 nc73162425 Id of event.
Event Code 73162425 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73162425, A comma-separated list of event ids that are associated to an event.

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