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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag was detected near Georgetown in Saint Helena



Earthquake location -10.634S, -14.4211WA light earthquake magnitude 4.6 (ml/mb) has occurred on Wednesday, 298 km S of Georgetown, Saint Helena (185 miles). The earthquake was roughly at a depth of 10 km (6 miles). Global date and time of event UTC/GMT: 09/09/15 / 2015-09-09 11:00:02 / September 9, 2015 @ 11:00 am. Exact location of event, depth 10 km, -14.4211° West, -10.634° South. The 4.6-magnitude earthquake has occurred at 10:00:02 / 10:00 am (local time epicenter). All ids that are associated to the event: us20003muy. Unique identifier: us20003muy. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 298 km S of Georgetown, Saint Helena. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -14.4211° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -10.634° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 298km S 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 2015-09-09 11:00:02 Time when the event occurred. UTC/GMT
Updated 2015-10-07 05:58:29 Time when the event was most recently updated. UTC/GMT
Timezone offset -60 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 27.017 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 88 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 us20003muy Id of event.
Event Code 20003muy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003muy, A comma-separated list of event ids that are associated to an event.

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