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Light earthquake: M4.3 quake has struck near Melipilla in Chile

Posted by admin on September 19, 2015 0 Comments

Earthquake location -33.999S, -71.195WA light earthquake with magnitude 4.3 (ml/mb) was reported 33 kilometers (21 miles) from Melipilla in Chile on Saturday. Global date and time of event UTC/GMT: 19/09/15 / 2015-09-19 10:46:04 / September 19, 2015 @ 10:46 am. All ids that are associated to the event: us20003lu4. Unique identifier: us20003lu4. Exact location, longitude -71.195° West, latitude -33.999° South, depth = 70.2 km. 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 07:46:04 / 7:46 am (local time epicenter). The earthquake occurred at a depth of 70.2 km (44 miles) below the earth’s surface.

Epicenter of the event was 79 km (49 miles) from Santiago (c. 4 837 300 pop), 72 km (44 miles) from Puente Alto (c. 510 400 pop), 64 km (40 miles) from San Bernardo (c. 249 900 pop), 46 km (28 miles) from Rancagua (c. 212 700 pop), 69 km (43 miles) from La Pintana (c. 201 200 pop), 75 km (47 miles) from Lo Prado (c. 104 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Lampa, Villa Presidente Frei, Ñuñoa, Santiago, Chile, Chimbarongo. Close country/countries that might be effected, Chile (c. 16 746 000 pop).

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

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 33 km S of Melipilla, 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 -71.195° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -33.999° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 70.2 km Depth of the event in kilometers.
Place 33km S of Melipilla, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-19 10:46:04 Time when the event occurred. UTC/GMT
Updated 2015-09-19 11:27:48 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 3.7 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 286 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 us20003lu4 Id of event.
Event Code 20003lu4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003lu4, A comma-separated list of event ids that are associated to an event.

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