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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 18 km S of Huacho, Peru

Earthquake location -11.2729S, -77.6089WA light earthquake with magnitude 4.1 (ml/mb) was reported 18 kilometers (11 miles) from Huacho in Peru on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 25/12/17 / 2017-12-25 02:17:12 / December 25, 2017 @ 2:17 am UTC/GMT. The temblor was picked up at 21:17:12 / 9:17 pm (local time epicenter). The earthquake occurred at a depth of 70.52 km (44 miles) below the earth’s surface. Unique identifier: us1000bvtv. Ids that are associated to the event: us1000bvtv. Exact location of event, longitude -77.6089 West, latitude -11.2729 South, depth = 70.52 km.

Nearby country/countries that might be effected, Peru (c. 29 907 000 pop). Epicenter of the earthquake was 50 km (31 miles) from Huaral (c. 62 200 pop), 18 km (11 miles) from Huacho (c. 54 500 pop), 61 km (38 miles) from Barranca (c. 46 300 pop), 72 km (45 miles) from Paramonga (c. 27 600 pop), 50 km (31 miles) from Chancay (c. 27 000 pop), 20 km (12 miles) from Hualmay (c. 26 700 pop). Nearest cities/city/towns to hypocenter/epicentrum was Paramonga, Pativilca, Barranca (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days twelve earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

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: 18 km S of Huacho, Peru.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -77.6089° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -11.2729° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 70.52 km Depth of the event in kilometers.
Place 18km S of Huacho, Peru Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-25 02:17:12 Time when the event occurred. UTC/GMT
Updated 2017-12-27 02:00:09 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 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 1.033 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.9 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 177 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 us1000bvtv Id of event.
Event Code 1000bvtv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000bvtv, A comma-separated list of event ids that are associated to an event.

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