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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 91 km SE of Bristol Island, South Sandwich Islands

Posted by admin on September 29, 2018 0 Comments

Earthquake location -59.4966S, -25.1981WA light earthquake magnitude 4.6 (ml/mb) strikes 91 km SE of Bristol Island, South Sandwich Islands (57 miles) on Saturday. The temblor was reported at 17:28:56 / 5:28 pm (local time epicenter). All ids that are associated to the event: us2000hgp7. Unique identifier: us2000hgp7. Exact location of earthquake, longitude -25.1981 West, latitude -59.4966 South, depth = 10 km. Global date and time of event UTC/GMT: 08/09/18 / 2018-09-08 19:28:56 / September 8, 2018 @ 7:28 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 10 km (6 miles).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 91 km SE of Bristol Island, South Sandwich Islands.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -25.1981° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -59.4966° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 91km SE of Bristol Island, 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 2018-09-08 19:28:56 Time when the event occurred. UTC/GMT
Updated 2018-09-29 05:40:37 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 326 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 8.087 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 96 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 us2000hgp7 Id of event.
Event Code 2000hgp7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000hgp7, A comma-separated list of event ids that are associated to an event.

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