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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.29 mag strikes near Petrolia in CA


Earthquake location 40.3561668S, -124.3625031WA minor earthquake with magnitude 3.29 (ml/mb) was detected on Saturday, 7 kilometers (4 miles) from Petrolia in CA. Date and time of earthquake in UTC/GMT: 09/01/21 / 2021-01-09 21:26:05 / January 9, 2021 @ 9:26 pm. The earthquake was roughly at a depth of 19.3 km (12 miles). The 3.29-magnitude earthquake was detected at 21:26:05 / 9:26 pm (local time epicenter). All ids that are associated to the event: nc73508755. Unique identifier: nc73508755. Exact location of earthquake, -124.3625031° West, 40.3561668° North, depth 19.3 km.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the event was 52 km (33 miles) from Eureka (c. 27 200 pop), 61 km (38 miles) from Arcata (c. 17 200 pop), 60 km (37 miles) from Bayside (c. 17 100 pop), 69 km (43 miles) from McKinleyville (c. 15 200 pop), 32 km (20 miles) from Fortuna (c. 11 900 pop). Closest city/cities/towns to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days five and in the last 365 days fifty-four earthquakes of magnitude 3.0 or greater that has struck near. 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?

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. 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: 7 km WNW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 3.29 mb The magnitude for the event.
Longitude -124.3625031° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.3561668° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.3 km Depth of the event in kilometers.
Place 7km WNW 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 2021-01-09 21:26:05 Time when the event occurred. UTC/GMT
Updated 2021-01-09 21:33:06 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 167 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 16 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1208 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 226 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 nc73508755 Id of event.
Event Code 73508755 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73508755, A comma-separated list of event ids that are associated to an event.

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