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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near San Pedro de Cajas in Peru

Earthquake location -11.3617S, -75.8514WA light earthquake with magnitude 4.2 (ml/mb) was reported 12 kilometers (7 miles) from San Pedro de Cajas in Peru on Monday. Exact location of earthquake, -75.8514° West, -11.3617° South, depth 107.44 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 18/09/17 / 2017-09-18 06:10:47 / September 18, 2017 @ 6:10 am. Event ids that are associated to the earthquake: us2000aps4. Id of event: us2000aps4. The earthquake was roughly at a depth of 107.44 km (67 miles). The 4.2-magnitude earthquake has occurred at 01:10:47 / 1:10 am (local time epicenter).

Epicenter of the event was 89 km (55 miles) from Cerro de Pasco (c. 78 900 pop), 19 km (12 miles) from Tarma (c. 51 400 pop), 18 km (11 miles) from La Oroya (c. 33 300 pop), 60 km (37 miles) from Jauja (c. 21 100 pop), 27 km (17 miles) from Junín (c. 15 300 pop), 60 km (37 miles) from San Ramón (c. 14 700 pop). Nearest cities/city/villages to epicentrum/hypocenter was San Jerónimo, Cerro de Pasco, Concepción (min 5000 pop). Nearby country/countries, Peru (c. 29 907 000 pop) (That might be effected).

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. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days four and in the last 365 days sixteen earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 12 km S of San Pedro de Cajas, Peru. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -75.8514° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -11.3617° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 107.44 km Depth of the event in kilometers.
Place 12km S of San Pedro de Cajas, Peru Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-18 06:10:47 Time when the event occurred. UTC/GMT
Updated 2017-10-14 08:16:39 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 271 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 1.152 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.34 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 92 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 us2000aps4 Id of event.
Event Code 2000aps4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000aps4, A comma-separated list of event ids that are associated to an event.

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