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Major earthquake, 7 mag strikes near South Shetland Islands

Posted by admin on January 24, 2021 0 Comments

Earthquake location -61.8484S, -55.559WA major earthquake with magnitude 7 (ml/mb) was detected on Saturday, South Shetland Islands (0 miles). Global date and time of event UTC/GMT: 23/01/21 / 2021-01-23 23:36:50 / January 23, 2021 @ 11:36 pm. The temblor was picked up at 23:36:50 / 11:36 pm (local time epicenter). A tsunami warning has been issued near South Shetland Islands (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -55.559 West, latitude -61.8484 South, depth = 7.76 km. The epicenter was at a depth of 7.76 km (5 miles). All ids that are associated to the event: at00qneuxj, pt21023003, us7000d2rx. Unique identifier: us7000d2rx.

Earthquakes 7.0 to 7.9 may cause serious damage. Each year there are an estimated 15 major quakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days four earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: South Shetland Islands.

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More information

Parameter Value Description
Magnitude 7 mb The magnitude for the event.
Longitude -55.559° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -61.8484° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.76 km Depth of the event in kilometers.
Place South Shetland Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-23 23:36:50 Time when the event occurred. UTC/GMT
Updated 2021-01-23 23:57:01 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 4.855 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 754 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 ,at,pt,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 1.513 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.04 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 25 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000d2rx Id of event.
Event Code 7000d2rx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qneuxj,pt21023003,us7000d2rx, A comma-separated list of event ids that are associated to an event.

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