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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Niltepec in Mexico

Earthquake location 16.5045S, -94.6543WA light earthquake magnitude 4.1 (ml/mb) has occurred on Saturday, 7 kilometers (4 miles) from Niltepec in Mexico. Event id: us2000auh2. Ids that are associated to the earthquake: us2000auh2. Exact location of earthquake, -94.6543° West, 16.5045° North, depth 58.05 km. Exact time and date of earthquake 23/09/17 / 2017-09-23 14:58:54 / September 23, 2017 @ 2:58 pm UTC/GMT. The 4.1-magnitude earthquake was detected at 08:58:54 / 8:58 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 58.05 km (36 miles).

Nearby country/countries that might be effected, Mexico (c. 112 469 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Jalapa, Arriaga, Salina Cruz (min 5000 pop). Event epicenter was 68 km (42 miles) from Salina Cruz (c. 73 600 pop), 40 km (25 miles) from Juchitán de Zaragoza (c. 67 600 pop), 66 km (41 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 48 km (30 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 86 km (53 miles) from Arriaga (c. 22 800 pop), 58 km (36 miles) from Matías Romero (c. 21 100 pop).

Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been fourty-eight, in the last 10 days seventy-four, in the past 30 days one hundred and fifty-seven and in the last 365 days one hundred and seventy-eight earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

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: 7 km SSW of Niltepec, Mexico.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -94.6543° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.5045° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.05 km Depth of the event in kilometers.
Place 7km SSW of Niltepec, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-23 14:58:54 Time when the event occurred. UTC/GMT
Updated 2017-10-22 19:44:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 1.493 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.28 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 118 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 us2000auh2 Id of event.
Event Code 2000auh2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000auh2, A comma-separated list of event ids that are associated to an event.

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