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Light earthquake 4.8 mag, 14 km SSW of Big Lake, Alaska

Posted by admin on December 1, 2018 0 Comments

Earthquake location 61.4039S, -150.0047WA light earthquake magnitude 4.8 (ml/mb) strikes 14 kilometers (9 miles) from Big Lake in Alaska on Friday. The 4.8-magnitude earthquake has occurred at 20:31:54 / 8:31 pm (local time epicenter). Event ids that are associated to the earthquake: at00pj1m15, us1000hz9c, ak20421432. Id of event: ak20421432. Exact time and date of event in UTC/GMT: 01/12/18 / 2018-12-01 05:31:54 / December 1, 2018 @ 5:31 am. Exact location of earthquake, -150.0047° West, 61.4039° North, depth 42.4 km. The earthquake occurred at a depth of 42.4 km (26 miles). A tsunami warning has been issued near Big Lake in Alaska (Does not indicate if a tsunami actually did or will exist).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Palmer, Gateway, Lakes. Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake was 21 km (13 miles) from Anchorage (c. 291 800 pop), 25 km (16 miles) from Eagle River (c. 24 800 pop), 25 km (15 miles) from Knik-Fairview (c. 14 900 pop), 43 km (27 miles) from Lakes (c. 8 400 pop), 39 km (24 miles) from Tanaina (c. 8 200 pop), 36 km (22 miles) from Wasilla (c. 7 800 pop), 33 km (20 miles) from Meadow Lakes (c. 7 600 pop).

In the past 24 hours, there have been one hundred and eleven, in the last 10 days one hundred and twelve, in the past 30 days one hundred and thirteen and in the last 365 days one hundred and seventy-one earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 14 km SSW of Big Lake, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -150.0047° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.4039° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.4 km Depth of the event in kilometers.
Place 14km SSW of Big Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-01 05:31:54 Time when the event occurred. UTC/GMT
Updated 2018-12-01 06:40:07 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 129 The total number of felt reports
CDI 5.4 The maximum reported intensity for the event.
MMI 3.82 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 reviewed Indicates whether the event has been reviewed by a human.
Tsunami 1 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 424 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 ,at,us,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 0.57 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 ak20421432 Id of event.
Event Code 20421432 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pj1m15,us1000hz9c,ak20421432, A comma-separated list of event ids that are associated to an event.

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