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Moderate earthquake: M5.6 quake has struck near Nikolski in Alaska

Earthquake location 52.3188S, -169.3144WA moderate earthquake with magnitude 5.6 (ml/mb) was reported 75 km SSW of Nikolski, Alaska (47 miles) on Sunday. Exact time and date of earthquake 27/07/15 / 2015-07-27 07:40:31 / July 27, 2015 @ 7:40 am UTC/GMT. The temblor was reported at 20:40:31 / 8:40 pm (local time epicenter). A tsunami warning has been issued near Nikolski in Alaska (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 30.67 km (19 miles) below the earth’s surface. Event id: us200030bu. Ids that are associated to the earthquake: us200030bu, at00ns4yni. Exact location, longitude -169.3144° West, latitude 52.3188° North, depth = 30.67 km.

There are an estimated 1320 moderate earthquakes in the world each year. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been nineteen, in the last 10 days twenty-one, in the past 30 days twenty-six and in the last 365 days one hundred and twelve earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 75 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 5.6 mb The magnitude for the event.
Longitude -169.3144° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.3188° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 30.67 km Depth of the event in kilometers.
Place 75km 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 2015-07-27 07:40:31 Time when the event occurred. UTC/GMT
Updated 2015-07-27 08:02:37 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 3.99 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 482 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,at, 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 0.711 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 116 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 us200030bu Id of event.
Event Code 200030bu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200030bu,at00ns4yni, A comma-separated list of event ids that are associated to an event.

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