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Light earthquake 4.7 mag, 48 km W of Valparaiso, Chile

Posted by admin on September 29, 2015 0 Comments

Earthquake location -33.007S, -72.1425WA light earthquake magnitude 4.7 (ml/mb) strikes 48 kilometers (30 miles) from Valparaiso in Chile on Tuesday. The 4.7-magnitude earthquake was detected at 08:42:45 / 8:42 am (local time epicenter). Unique identifier: us10003it2. Ids that are associated to the event: us10003it2. The earthquake occurred at a depth of 21.23 km (13 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -72.1425° West, -33.007° South, depth 21.23 km. Date and time of earthquake in UTC/GMT: 29/09/15 / 2015-09-29 13:42:45 / September 29, 2015 @ 1:42 pm.

Close country/countries that might be effected, Chile (c. 16 746 000 pop). Epicenter of the earthquake was 55 km (34 miles) from Viña del Mar (c. 294 600 pop), 48 km (30 miles) from Valparaíso (c. 282 400 pop), 65 km (41 miles) from Quilpué (c. 130 300 pop), 72 km (45 miles) from Villa Alemana (c. 97 300 pop), 82 km (51 miles) from San Antonio (c. 85 700 pop), 85 km (53 miles) from Quillota (c. 67 800 pop), 90 km (56 miles) from Hacienda La Calera (c. 49 100 pop). Nearest cities/city/towns to hypocenter/epicentrum was Hacienda La Calera, Quillota, San Antonio (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 three, in the last 10 days twenty-six, in the past 30 days thirty-eight and in the last 365 days fifty-four earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 48 km W of Valparaiso, Chile.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -72.1425° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -33.007° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.23 km Depth of the event in kilometers.
Place 48km W of Valparaiso, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-29 13:42:45 Time when the event occurred. UTC/GMT
Updated 2015-09-29 15:45:29 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 340 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 0.424 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 80 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 us10003it2 Id of event.
Event Code 10003it2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003it2, A comma-separated list of event ids that are associated to an event.

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