Minor earthquake: M3.9 quake has struck near Valparaiso in Chile

A minor earthquake magnitude 3.9 (ml/mb) strikes 36 kilometers (22 miles) from Valparaiso in Chile on Friday. Exact location of event, depth 20 km, -71.9565° West, -33.2221° South. Exact time and date of event in UTC/GMT: 28/04/17 / 2017-04-28 21:01:21 / April 28, 2017 @ 9:01 pm. Unique identifier: us10008lsn. Ids that are associated to the event: us10008lsn. The temblor was detected at 16:01:21 / 4:01 pm (local time epicenter). The earthquake was roughly at a depth of 20 km (12 miles).

Event epicenter was 44 km (27 miles) from Viña del Mar (c. 294 600 pop), 37 km (23 miles) from Valparaíso (c. 282 400 pop), 52 km (32 miles) from Quilpué (c. 130 300 pop), 58 km (36 miles) from Villa Alemana (c. 97 300 pop), 53 km (33 miles) from San Antonio (c. 85 700 pop), 76 km (47 miles) from Quillota (c. 67 800 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Melipilla, Hacienda La Calera, Quillota. Close country/countries, Chile (c. 16 746 000 pop) (That might be effected).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been twenty-two, in the last 10 days eighty-four, in the past 30 days eighty-four and in the last 365 days one hundred and ten earthquakes of magnitude 3.0 or greater that have been detected nearby.

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 36 km WSW of Valparaiso, Chile.

Chile Hacienda La Calera Melipilla Quillota Quilpue San Antonio Valparaiso Villa Alemana Vina del Mar

More information

Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-71.9565° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-33.2221° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	20 km	Depth of the event in kilometers.
Place	36km WSW 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	2017-04-28 21:01:21	Time when the event occurred. UTC/GMT
Updated	2017-04-28 21:31:42	Time when the event was most recently updated. UTC/GMT
Timezone offset	-300	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	234	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	0.333	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.61 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	171	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	us10008lsn	Id of event.
Event Code	10008lsn	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10008lsn,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.9 quake has struck near Valparaiso in Chile

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