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Moderate World Earthquakes Magnitude 5–5.9, Tsunami warning alerts

Moderate earthquake: M5.8 quake strikes near Semisopochnoi Island in Alaska



Earthquake location 51.9046S, 179.5676WA moderate earthquake magnitude 5.8 (mg/mb) has occurred on Saturday, 5 kilometers (3 miles) from Semisopochnoi Island in Alaska. The temblor was reported at 06:47:38 / 6:47 pm (local time epicenter) at a depth of 105.87 km (66 miles). Global time of event 2015-01-18 04:47:38 UTC/GMT. A tsunami warning has been issued near Semisopochnoi Island in Alaska, according to the U.S. Geological Survey. Exact location of event, longitude 179.5676 East, latitude 51.9046 North, depth 105.87 km.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 5 km SSW of Semisopochnoi Island, Alaska.



More information

Parameter Value Description
Magnitude 5.8 mb The magnitude for the event.
Longitude 179.5676° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.9046° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 105.87 km Depth of the event in kilometers.
Place 5km SSW of Semisopochnoi Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-01-18 04:47:38 Time when the event occurred. UTC/GMT
Updated 2015-01-18 05:11:09 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 4.42 The maximum estimated instrumental intensity for the event.
Alert Level green 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 518 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 atus 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 0.554 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 48 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 usc000tgw6 Id of event.
Event Code c000tgw6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS at00nicvzeusc000tgw6 A comma-separated list of event ids that are associated to an event.

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