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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Visokoi Island in South Georgia and the South Sandwich Islands



Earthquake location -55.229S, -30.7921WA light earthquake magnitude 4.5 (ml/mb) strikes 277 km NW of Visokoi Island, South Georgia and the South Sandwich Islands (172 miles) on Tuesday. The earthquake occurred at a depth of 10 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -30.7921 West, latitude -55.229 South, depth = 10 km. The 4.5-magnitude earthquake has occurred at 21:25:01 / 9:25 pm (local time epicenter). Unique identifier: us20006ua6. Ids that are associated to the event: us20006ua6. Global date and time of event UTC/GMT: 23/08/16 / 2016-08-23 23:25:01 / August 23, 2016 @ 11:25 pm.

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 277 km NW of Visokoi Island, South Georgia and the South Sandwich Islands. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -30.7921° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -55.229° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 277km NW of Visokoi Island, South Georgia and the South Sandwich Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-08-23 23:25:01 Time when the event occurred. UTC/GMT
Updated 2016-09-02 02:38:35 Time when the event was most recently updated. UTC/GMT
Timezone offset -120 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 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 312 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 3.433 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 75 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 us20006ua6 Id of event.
Event Code 20006ua6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20006ua6, A comma-separated list of event ids that are associated to an event.

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