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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 53 km S of San Francisco del Mar, Mexico



Earthquake location 15.7525S, -94.5731WA light earthquake with magnitude 4.1 (ml/mb) was reported 53 kilometers (33 miles) from San Francisco del Mar in Mexico on Wednesday. The earthquake occurred at a depth of 34.49 km (21 miles). Global time and date of event 11/10/17 / 2017-10-11 11:06:59 / October 11, 2017 @ 11:06 am UTC/GMT. The 4.1-magnitude earthquake has occurred at 05:06:59 / 5:06 am (local time epicenter). Exact location of earthquake, -94.5731° West, 15.7525° North, depth 34.49 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us1000aq4m. Ids that are associated to the earthquake: us1000aq4m.

Event epicenter was 83 km (51 miles) from Salina Cruz (c. 73 600 pop), 90 km (56 miles) from Juchitán de Zaragoza (c. 67 600 pop), 90 km (56 miles) from Arriaga (c. 22 800 pop), 85 km (53 miles) from Unión Hidalgo (c. 12 700 pop), 74 km (46 miles) from Chahuite (c. 9 800 pop), 68 km (43 miles) from Las Amilpas (c. 8 800 pop). Nearest cities/city/towns to hypocenter/epicentrum was Juchitán de Zaragoza, Arriaga, El Espinal (min 5000 pop). Nearby country/countries that might be effected, Mexico (c. 112 469 000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been twenty-five, in the last 10 days thirty-six, in the past 30 days one hundred and eighty-one and in the last 365 days three hundred and eighty-six earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 53 km S of San Francisco del Mar, Mexico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -94.5731° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.7525° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 34.49 km Depth of the event in kilometers.
Place 53km S of San Francisco del Mar, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-11 11:06:59 Time when the event occurred. UTC/GMT
Updated 2017-11-02 09:09:25 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 2.401 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.63 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 164 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 us1000aq4m Id of event.
Event Code 1000aq4m An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000aq4m, A comma-separated list of event ids that are associated to an event.

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