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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

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

Posted by admin on June 30, 2018 0 Comments

Earthquake location -8.2778S, -13.7876WA light earthquake magnitude 4.7 (ml/mb) has struck on Saturday, 79 kilometers (49 miles) from Georgetown in Saint Helena. Exact time and date of earthquake 30/06/18 / 2018-06-30 12:05:03 / June 30, 2018 @ 12:05 pm UTC/GMT. Exact location of earthquake, -13.7876° West, -8.2778° South, depth 10 km. The 4.7-magnitude earthquake was detected at 11:05:03 / 11:05 am (local time epicenter). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Unique identifier: us2000fs7z. Ids that are associated to the event: us2000fs7z. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Closest city/cities/towns to epicentrum/hypocenter was Georgetown (min 5000 pop). Nearby country/countries that might be effected, Saint Helena (c. 7 000 pop). Earthquake epicenter was 79 km (49 miles) from Georgetown (c. 500 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days four 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.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 79 km ESE of Georgetown, Saint Helena. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -13.7876° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -8.2778° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 79km ESE 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 2018-06-30 12:05:03 Time when the event occurred. UTC/GMT
Updated 2018-06-30 12:24:40 Time when the event was most recently updated. UTC/GMT
Timezone offset -60 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.662 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 65 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 us2000fs7z Id of event.
Event Code 2000fs7z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000fs7z, A comma-separated list of event ids that are associated to an event.

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