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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Illapel in Chile


Earthquake location -31.5664S, -71.9578WA light earthquake with magnitude 4.3 (ml/mb) was reported 75 kilometers (47 miles) from Illapel in Chile on Friday. Exact location of earthquake, longitude -71.9578 West, latitude -31.5664 South, depth = 20.74 km. Exact time and date of event in UTC/GMT: 18/09/15 / 2015-09-18 05:04:17 / September 18, 2015 @ 5:04 am. Event ids that are associated to the earthquake: us20003l3n. Id of event: us20003l3n. The earthquake occurred at a depth of 20.74 km (13 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.3-magnitude earthquake was detected at 00:04:17 / 12:04 am (local time epicenter).

Nearby country/countries that might be effected, Chile (c. 16 746 000 pop). Earthquake epicenter was 75 km (47 miles) from Illapel (c. 22 800 pop). Closest city/cities/towns to epicentrum/hypocenter was Illapel (min 5000 pop).

In the past 24 hours, there have been two hundred and twenty-three, in the last 10 days two hundred and fifty-six, in the past 30 days two hundred and fifty-six and in the last 365 days two hundred and seventy-one earthquakes of magnitude 3.0 or greater that was reported nearby. Each 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.

Did you feel the quake?

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: 75 km W of Illapel, Chile. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -71.9578° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.5664° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.74 km Depth of the event in kilometers.
Place 75km 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 2015-09-18 05:04:17 Time when the event occurred. UTC/GMT
Updated 2015-10-07 06:52:38 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 284 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 0.931 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 95 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 us20003l3n Id of event.
Event Code 20003l3n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003l3n, A comma-separated list of event ids that are associated to an event.

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