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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Ovalle in Chile



Earthquake location -30.532S, -71.3664WA light earthquake with magnitude 4.5 (ml/mb) was reported 17 kilometers (11 miles) from Ovalle in Chile on Thursday. Exact location of event, longitude -71.3664 West, latitude -30.532 South, depth = 31.88 km. The 4.5-magnitude earthquake has occurred at 02:10:07 / 2:10 am (local time epicenter). Exact time and date of event in UTC/GMT: 17/09/15 / 2015-09-17 05:10:07 / September 17, 2015 @ 5:10 am. Event id: us10003j90. Ids that are associated to the earthquake: us10003j90. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 31.88 km (20 miles).

Epicenter of the earthquake was 64 km (40 miles) from Coquimbo (c. 161 300 pop), 71 km (44 miles) from La Serena (c. 154 500 pop), 18 km (11 miles) from Ovalle (c. 77 100 pop), 43 km (27 miles) from Monte Patria (c. 13 900 pop), 84 km (52 miles) from Vicuña (c. 13 500 pop). Close country/countries that might be effected, Chile (c. 16 746 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Vicuña, La Serena, Coquimbo (min 5000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one hundred and eighty-five, in the last 10 days one hundred and eighty-six, in the past 30 days one hundred and ninety-one and in the last 365 days two hundred and nine earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel it?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 17 km WNW of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -71.3664° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.532° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 31.88 km Depth of the event in kilometers.
Place 17km WNW of Ovalle, 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 05:10:07 Time when the event occurred. UTC/GMT
Updated 2015-10-11 11:25:47 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 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 312 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 0.271 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.51 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 83 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 us10003j90 Id of event.
Event Code 10003j90 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003j90, A comma-separated list of event ids that are associated to an event.

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