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Minor earthquake, 2.87 mag has occurred near Humboldt Hill in CA


Earthquake location 40.7183342S, -124.3348312WA minor earthquake with magnitude 2.87 (ml/mb) was reported 12 kilometers (7 miles) from Humboldt Hill in CA on Sunday. The epicenter of the earthquake was roughly 8.87 km (6 miles) below the earth’s surface. Exact time and date of earthquake 15/10/18 / 2018-10-15 02:06:54 / October 15, 2018 @ 2:06 am UTC/GMT. Exact location of earthquake, longitude -124.3348312 West, latitude 40.7183342 North, depth = 8.87 km. The temblor was detected at 18:06:54 / 6:06 pm (local time epicenter). Id of earthquake: nc73097411. Event ids that are associated: nc73097411.

The epicenter was 17 km (11 miles) from Eureka (c. 27 200 pop), 27 km (17 miles) from Arcata (c. 17 200 pop), 27 km (17 miles) from Bayside (c. 17 100 pop), 32 km (20 miles) from McKinleyville (c. 15 200 pop), 20 km (12 miles) from Fortuna (c. 11 900 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Every year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days three and in the last 365 days thirty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 12 km W of Humboldt Hill, 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 -124.3348312° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.7183342° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.87 km Depth of the event in kilometers.
Place 12km W of Humboldt Hill, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-15 02:06:54 Time when the event occurred. UTC/GMT
Updated 2018-10-15 02:11:04 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 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 15 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2425 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.12 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 196 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 nc73097411 Id of event.
Event Code 73097411 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73097411, A comma-separated list of event ids that are associated to an event.

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