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Minor earthquake: M3.5 quake has struck near Alvor in Portugal

Posted by admin on September 12, 2017 0 Comments

Earthquake location 37.1247S, -8.5745WA minor earthquake with magnitude 3.5 (ml/mb) was reported 1 kilometers (1 miles) from Alvor in Portugal on Monday. Exact location, longitude -8.5745° West, latitude 37.1247° North, depth = 19.99 km. Exact time and date of earthquake 11/09/17 / 2017-09-11 18:09:31 / September 11, 2017 @ 6:09 pm UTC/GMT. The epicenter of the earthquake was roughly 19.99 km (12 miles) below the earth’s surface. The temblor was detected at 18:09:31 / 6:09 pm (local time epicenter). All ids that are associated to the event: us2000akih. Unique identifier: us2000akih.

Closest city/cities/towns to epicentrum/hypocenter was Tavira, Moncarapacho, Laranjeiro (min 5000 pop). Close country/countries, Portugal (c. 10 676 000 pop) (That might be effected). Event epicenter was 58 km (36 miles) from Faro (c. 41 400 pop), 4 km (2 miles) from Portimão (c. 38 500 pop), 66 km (41 miles) from Olhão (c. 29 200 pop), 49 km (31 miles) from Loulé (c. 23 100 pop), 70 km (43 miles) from Laranjeiro (c. 20 500 pop), 9 km (6 miles) from Lagos (c. 18 800 pop).

Each year there are an estimated 130,000 minor earthquakes in the world. 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 one earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 1 km ESE of Alvor, Portugal.

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More information

Parameter Value Description
Magnitude 3.5 mb The magnitude for the event.
Longitude -8.5745° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.1247° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.99 km Depth of the event in kilometers.
Place 1km ESE of Alvor, Portugal Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-11 18:09:31 Time when the event occurred. UTC/GMT
Updated 2017-09-12 02:01:34 Time when the event was most recently updated. UTC/GMT
Timezone offset 0 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 188 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 0.189 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 107 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000akih Id of event.
Event Code 2000akih An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000akih, A comma-separated list of event ids that are associated to an event.

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