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Minor earthquake, 3.1 mag strikes near Cohoe in Alaska



Earthquake location 60.3216S, -151.9325WA minor earthquake magnitude 3.1 (ml/mb) has struck on Friday, 34 kilometers (21 miles) from Cohoe in Alaska. The earthquake occurred at a depth of 194 km (121 miles). Exact time and date of earthquake 21/04/17 / 2017-04-21 12:26:00 / April 21, 2017 @ 12:26 pm UTC/GMT. Event id: ak15796217. Ids that are associated to the earthquake: ak15796217. Exact location of event, longitude -151.9325 West, latitude 60.3216 North, depth = 194 km. The 3.1-magnitude earthquake was detected at 03:26:00 / 3:26 am (local time epicenter).

Earthquake epicenter was 37 km (23 miles) from Kalifornsky (c. 7 900 pop), 45 km (28 miles) from Kenai (c. 7 100 pop), 68 km (43 miles) from Sterling (c. 5 600 pop), 78 km (49 miles) from Homer (c. 5 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Homer, Sterling, Kenai. Close country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days eight and in the last 365 days one hundred and twenty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 34 km W of Cohoe, 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 -151.9325° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.3216° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 194 km Depth of the event in kilometers.
Place 34km W of Cohoe, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-21 12:26:00 Time when the event occurred. UTC/GMT
Updated 2017-04-21 12:32:27 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 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 0.9 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 ak15796217 Id of event.
Event Code 15796217 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15796217, A comma-separated list of event ids that are associated to an event.

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