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Minor earthquake, 3.1 mag strikes near North Nenana in Alaska


Earthquake location 64.7301S, -148.9467WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Monday, 18 kilometers (11 miles) from North Nenana in Alaska. Global time and date of event 28/09/15 / 2015-09-28 11:50:13 / September 28, 2015 @ 11:50 am UTC/GMT. The earthquake was roughly at a depth of 11.6 km (7 miles). Exact location of earthquake, -148.9467° West, 64.7301° North, depth 11.6 km. Event ids that are associated to the earthquake: ak11725460. Id of event: ak11725460. The 3.1-magnitude earthquake has occurred at 03:50:13 / 3:50 am (local time epicenter).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 59 km (37 miles) from Fairbanks (c. 31 500 pop), 67 km (42 miles) from Badger (c. 19 500 pop), 56 km (35 miles) from College (c. 13 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Badger, Fairbanks, College.

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

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 18 km NNE of North Nenana, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -148.9467° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 64.7301° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.6 km Depth of the event in kilometers.
Place 18km NNE of North Nenana, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-28 11:50:13 Time when the event occurred. UTC/GMT
Updated 2015-09-28 12:06:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 148 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 0.91 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 ak11725460 Id of event.
Event Code 11725460 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11725460, A comma-separated list of event ids that are associated to an event.

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