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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near Illapel in Chile

Earthquake location -31.2416S, -71.7525WA light earthquake magnitude 4.6 (ml/mb) strikes 70 kilometers (43 miles) from Illapel in Chile on Thursday. The epicenter of the earthquake was roughly 28.54 km (18 miles) below the earth’s surface. Exact location of earthquake, -71.7525° West, -31.2416° South, depth 28.54 km. Id of earthquake: us10003j59. Event ids that are associated: us10003j59. Date and time of earthquake in UTC/GMT: 17/09/15 / 2015-09-17 08:39:01 / September 17, 2015 @ 8:39 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 05:39:01 / 5:39 am (local time epicenter).

Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was Monte Patria, Salamanca, Ovalle (min 5000 pop). Epicenter of the earthquake was 89 km (55 miles) from Ovalle (c. 77 100 pop), 70 km (44 miles) from Illapel (c. 22 800 pop), 97 km (60 miles) from Monte Patria (c. 13 900 pop), 96 km (59 miles) from Salamanca (c. 13 300 pop).

There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two hundred and thirty-nine, in the last 10 days two hundred and thirty-nine, in the past 30 days two hundred and thirty-nine and in the last 365 days two hundred and fifty-six earthquakes of magnitude 3.0 or greater that was reported nearby.

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. 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: 70 km NW of Illapel, Chile.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -71.7525° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.2416° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 28.54 km Depth of the event in kilometers.
Place 70km NW 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 2015-09-17 08:39:01 Time when the event occurred. UTC/GMT
Updated 2015-10-04 13:04:58 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 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 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 0.574 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 148 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 us10003j59 Id of event.
Event Code 10003j59 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003j59, A comma-separated list of event ids that are associated to an event.

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