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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Visokoi Island in South Georgia and the South Sandwich Islands

Posted by admin on October 1, 2018 0 Comments

Earthquake location -55.9299S, -27.6759WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 90 km NNW of Visokoi Island, South Georgia and the South Sandwich Islands (56 miles). Exact location of event, longitude -27.6759 West, latitude -55.9299 South, depth = 109.5 km. The earthquake occurred at a depth of 109.5 km (68 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us1000h3u0. Ids that are associated to the earthquake: us1000h3u0. The temblor was picked up at 08:55:23 / 8:55 am (local time epicenter). Global date and time of event UTC/GMT: 23/09/18 / 2018-09-23 10:55:23 / September 23, 2018 @ 10:55 am.

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days seven and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 90 km NNW of Visokoi Island, South Georgia and the South Sandwich Islands. This information 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 -27.6759° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -55.9299° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 109.5 km Depth of the event in kilometers.
Place 90km NNW 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 2018-09-23 10:55:23 Time when the event occurred. UTC/GMT
Updated 2018-10-01 05:59:57 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 5.321 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 79 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 us1000h3u0 Id of event.
Event Code 1000h3u0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h3u0, A comma-separated list of event ids that are associated to an event.

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