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Minor earthquake: M3.3 quake has struck near Nikiski in Alaska

Earthquake location 61.0863S, -151.5087WA minor earthquake with magnitude 3.3 (ml/mb) was reported 45 kilometers (28 miles) from Nikiski in Alaska on Tuesday. Global date and time of event UTC/GMT: 16/10/18 / 2018-10-16 18:33:06 / October 16, 2018 @ 6:33 pm. The temblor was detected at 09:33:06 / 9:33 am (local time epicenter). Event id: ak20284999. Ids that are associated to the earthquake: ak20284999. The epicenter of the earthquake was roughly 71.2 km (44 miles) below the earth’s surface. Exact location of event, longitude -151.5087 West, latitude 61.0863 North, depth = 71.2 km.

Nearest cities/city/villages to epicentrum/hypocenter was Kalifornsky, Sterling, Kenai (min 5000 pop). Event epicenter was 75 km (47 miles) from Kalifornsky (c. 7 900 pop), 61 km (38 miles) from Kenai (c. 7 100 pop), 73 km (45 miles) from Sterling (c. 5 600 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days six and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 130,000 minor quakes in the world.

Did you feel anything?

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: 45 km NNW of Nikiski, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -151.5087° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.0863° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 71.2 km Depth of the event in kilometers.
Place 45km NNW of Nikiski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-16 18:33:06 Time when the event occurred. UTC/GMT
Updated 2018-10-16 18:36:02 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 168 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak20284999 Id of event.
Event Code 20284999 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20284999, A comma-separated list of event ids that are associated to an event.

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