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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.7 mag was detected near Georgetown in Saint Helena

Posted by admin on July 11, 2024 0 Comments

Earthquake location -7.4138S, -13.8045WA light earthquake with magnitude 4.7 (ml/mb) was reported 87 kilometers (54 miles) from Georgetown in Saint Helena on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 01/07/24 / 2024-07-01 13:20:04 / July 1, 2024 @ 1:20 pm. The epicenter was at a depth of 10 km (6 miles). Exact location of event, longitude -13.8045 West, latitude -7.4138 South, depth = 10 km. The 4.7-magnitude earthquake has occurred at 13:20:04 / 1:20 pm (local time epicenter). Event ids that are associated to the earthquake: us7000mxtl. Id of event: us7000mxtl.

Nearby country/countries that might be effected, Saint Helena (c. 7 000 pop). The epicenter was 89 km (55 miles) from Georgetown (c. 500 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Georgetown.

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

Did you feel anything?

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: 87 km NE of Georgetown, Saint Helena.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -13.8045° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -7.4138° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 87 km NE of Georgetown, Saint Helena Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2024-07-01 13:20:04 Time when the event occurred. UTC/GMT
Updated 2024-07-11 14:15:40 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 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 340 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.754 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 137 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 us7000mxtl Id of event.
Event Code 7000mxtl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000mxtl, A comma-separated list of event ids that are associated to an event.

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