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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Ovalle in Chile

Posted by admin on September 22, 2015 0 Comments

Earthquake location -30.9115S, -71.9017WA light earthquake magnitude 4.1 (ml/mb) has struck on Friday, 75 kilometers (47 miles) from Ovalle in Chile. The 4.1-magnitude earthquake was detected at 17:50:41 / 5:50 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us20003ljj. Ids that are associated to the event: us20003ljj. Date and time of earthquake in UTC/GMT: 18/09/15 / 2015-09-18 20:50:41 / September 18, 2015 @ 8:50 pm. The earthquake occurred at a depth of 33.89 km (21 miles) below the earth’s surface. Exact location of event, depth 33.89 km, -71.9017° West, -30.9115° South.

Epicenter of the earthquake was 75 km (47 miles) from Ovalle (c. 77 100 pop). Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was Ovalle (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 ninety-two, in the last 10 days one hundred and fifty-one, in the past 30 days one hundred and fifty-one and in the last 365 days one hundred and sixty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel anything?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 75 km WSW of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -71.9017° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.9115° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 33.89 km Depth of the event in kilometers.
Place 75km WSW 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 2015-09-18 20:50:41 Time when the event occurred. UTC/GMT
Updated 2015-09-22 14:46:20 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 259 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 0.329 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 125 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us20003ljj Id of event.
Event Code 20003ljj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003ljj, A comma-separated list of event ids that are associated to an event.

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