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Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake: M5.5 quake has struck near South Sandwich Islands region


Earthquake location -55.7382S, -27.0225WA moderate earthquake with magnitude 5.5 (ml/mb) was reported South Sandwich Islands region (0 miles) on Tuesday. All ids that are associated to the event: us6000mv76. Unique identifier: us6000mv76. The temblor was picked up at 14:30:40 / 2:30 pm (local time epicenter). The epicenter of the earthquake was roughly 15.974 km (10 miles) below the earth’s surface. Exact location of earthquake, -27.0225° West, -55.7382° South, depth 15.974 km. Date and time of earthquake in UTC/GMT: 30/04/24 / 2024-04-30 14:30:40 / April 30, 2024 @ 2:30 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Each year there are an estimated 1320 moderate earthquakes in the world. In the past 24 hours, there have been twelve, in the last 10 days thirteen, in the past 30 days fifteen and in the last 365 days fifteen earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: South Sandwich Islands region. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.5 mb The magnitude for the event.
Longitude -27.0225° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -55.7382° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 15.974 km Depth of the event in kilometers.
Place South Sandwich Islands region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2024-04-30 14:30:40 Time when the event occurred. UTC/GMT
Updated 2024-05-01 15:55:17 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 3.485 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 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 465 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 250 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 5.638 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 16 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 us6000mv76 Id of event.
Event Code 6000mv76 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000mv76, A comma-separated list of event ids that are associated to an event.

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