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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 40 km W of Chilca, Peru

Earthquake location -12.58S, -77.1025WA light earthquake magnitude 4.2 (ml/mb) has struck on Friday, 40 kilometers (25 miles) from Chilca in Peru. The earthquake occurred at a depth of 35.95 km (22 miles). Global date and time of event UTC/GMT: 30/06/17 / 2017-06-30 08:36:25 / June 30, 2017 @ 8:36 am. Exact location of event, depth 35.95 km, -77.1025° West, -12.58° South. Event id: us100098fh. Ids that are associated to the earthquake: us100098fh. The temblor was reported at 03:36:25 / 3:36 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Close country/countries, Peru (c. 29 907 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Santa Eulalia, Quilmaná, Asentamiento Humano Nicolas de Pierola. Earthquake epicenter was 60 km (37 miles) from Lima (c. 7 737 000 pop), 58 km (36 miles) from Callao (c. 813 300 pop), 50 km (31 miles) from Surco (c. 251 600 pop), 83 km (51 miles) from Chosica (c. 88 600 pop), 52 km (32 miles) from San Isidro (c. 68 300 pop), 52 km (32 miles) from Mala (c. 17 300 pop).

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days three and in the last 365 days sixteen earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes 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: 40 km W of Chilca, Peru.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -77.1025° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -12.58° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.95 km Depth of the event in kilometers.
Place 40km W of Chilca, Peru Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-06-30 08:36:25 Time when the event occurred. UTC/GMT
Updated 2017-07-09 22:29:46 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 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 272 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 0.641 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.13 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 mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us100098fh Id of event.
Event Code 100098fh An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100098fh, A comma-separated list of event ids that are associated to an event.

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