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Light earthquake, 4 mag strikes near Illapel in Chile

Posted by admin on September 25, 2015 0 Comments

Earthquake location -31.5897S, -72.4685WA light earthquake magnitude 4 (ml/mb) strikes 123 km W of Illapel, Chile (76 miles) on Tuesday. Exact time and date of event in UTC/GMT: 23/09/15 / 2015-09-23 01:52:10 / September 23, 2015 @ 1:52 am. Exact location, longitude -72.4685° West, latitude -31.5897° South, depth = 10 km. The temblor was picked up at 20:52:10 / 8:52 pm (local time epicenter). The earthquake was roughly at a depth of 10 km (6 miles). Id of earthquake: us20003n6t. Event ids that are associated: us20003n6t. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Every year there are an estimated 13,000 light earthquakes 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 twenty-seven, in the last 10 days one hundred and fifty-eight, in the past 30 days one hundred and fifty-eight and in the last 365 days one hundred and sixty-six 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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 123 km W of Illapel, Chile.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -72.4685° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.5897° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 123km W of Illapel, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-23 01:52:10 Time when the event occurred. UTC/GMT
Updated 2015-09-24 23:54:31 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 246 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 1.159 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 200 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 us20003n6t Id of event.
Event Code 20003n6t An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003n6t, A comma-separated list of event ids that are associated to an event.

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