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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 2.9 mag was detected near Monchique in Portugal

Earthquake location 37.38S, -8.55WA minor earthquake magnitude 2.9 (ml/mb) strikes 6 kilometers (4 miles) from Monchique in Portugal on Wednesday. The epicenter was at a depth of 11 km (7 miles). Exact location, longitude -8.55° West, latitude 37.38° North, depth = 11 km. The temblor was detected at 09:39:58 / 9:39 am (local time epicenter). Id of earthquake: us10003rni. Event ids that are associated: us10003rni. Exact time and date of earthquake 21/10/15 / 2015-10-21 08:39:58 / October 21, 2015 @ 8:39 am UTC/GMT.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Santo André, Laranjeiro, Moncarapacho. Close country/countries, Portugal (c. 10 676 000 pop) (That might be effected). Earthquake epicenter was 68 km (42 miles) from Faro (c. 41 400 pop), 27 km (17 miles) from Portimão (c. 38 500 pop), 74 km (46 miles) from Olhão (c. 29 200 pop), 54 km (34 miles) from Loulé (c. 23 100 pop), 75 km (47 miles) from Laranjeiro (c. 20 500 pop).

In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days 0 and in the last 365 days one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world.

Did you feel anything?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 6 km N of Monchique, Portugal. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -8.55° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.38° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11 km Depth of the event in kilometers.
Place 6km N of Monchique, Portugal Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-21 08:39:58 Time when the event occurred. UTC/GMT
Updated 2015-10-26 23:36:57 Time when the event was most recently updated. UTC/GMT
Timezone offset 60 Timezone offset from UTC in minutes at the event epicenter.
Felt 5 The total number of felt reports
CDI 3.1 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 131 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.84 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb_lg The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10003rni Id of event.
Event Code 10003rni An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003rni, A comma-separated list of event ids that are associated to an event.

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