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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 57 km WNW of Mosteiros, Portugal

Posted by admin on January 18, 2021 0 Comments

Earthquake location 38.1431S, -26.3921WA light earthquake magnitude 4.6 (ml/mb) has occurred on Wednesday, 57 kilometers (35 miles) from Mosteiros in Portugal. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Event id: us6000d6rq. Ids that are associated to the earthquake: us6000d6rq. Exact time and date of earthquake 30/12/20 / 2020-12-30 04:31:48 / December 30, 2020 @ 4:31 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.6-magnitude earthquake was detected at 04:31:48 / 4:31 am (local time epicenter). Exact location, longitude -26.3921° West, latitude 38.1431° North, depth = 10 km.

Nearest cities/city/towns to hypocenter/epicentrum was Vila Franca do Campo, Angra do Heroísmo, Praia da Vitória (min 5000 pop). Earthquake epicenter was 78 km (49 miles) from Ponta Delgada (c. 20 100 pop), 91 km (57 miles) from Angra do Heroísmo (c. 12 000 pop), 78 km (49 miles) from Rosto de Cão (c. 7 900 pop), 81 km (50 miles) from Rabo de Peixe (c. 7 700 pop), 74 km (46 miles) from Arrifes (c. 7 000 pop), 88 km (55 miles) from Praia da Vitória (c. 6 100 pop), 97 km (60 miles) from Vila Franca do Campo (c. 5 000 pop). Country/countries that might be effected, Portugal (c. 10 676 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes 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 two earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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: 57 km WNW of Mosteiros, Portugal.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -26.3921° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.1431° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 57 km WNW of Mosteiros, Portugal Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-12-30 04:31:48 Time when the event occurred. UTC/GMT
Updated 2021-01-18 05:44:42 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 326 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 0.783 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 145 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 us6000d6rq Id of event.
Event Code 6000d6rq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000d6rq, A comma-separated list of event ids that are associated to an event.

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