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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag was detected near Nikolski in Alaska


Earthquake location 52.1984S, -169.3472WA minor earthquake with magnitude 3.9 (ml/mb) was detected on Tuesday, 88 km SSW of Nikolski, Alaska (55 miles). The temblor was reported at 00:19:47 / 12:19 am (local time epicenter). Exact time and date of event in UTC/GMT: 28/07/15 / 2015-07-28 11:19:47 / July 28, 2015 @ 11:19 am. Exact location of event, depth 41.3 km, -169.3472° West, 52.1984° North. The earthquake occurred at a depth of 41.3 km (26 miles). Event id: us200030sa. Ids that are associated to the earthquake: us200030sa.

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been seven, in the last 10 days thirty-eight, in the past 30 days fourty-two and in the last 365 days one hundred and twenty-seven earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 88 km SSW of Nikolski, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -169.3472° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1984° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41.3 km Depth of the event in kilometers.
Place 88km SSW of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-28 11:19:47 Time when the event occurred. UTC/GMT
Updated 2015-07-28 11:38:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 reviewed 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 234 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, 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 0.831 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.19 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 179 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us200030sa Id of event.
Event Code 200030sa An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200030sa, A comma-separated list of event ids that are associated to an event.

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