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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.7 mag was detected near Santa Cruz das Flores in Portugal

Posted by admin on September 20, 2017 0 Comments

Earthquake location 40.0478S, -29.7553WA light earthquake with magnitude 4.7 (ml/mb) was detected on Wednesday, 134 km ENE of Santa Cruz das Flores, Portugal (83 miles). The earthquake was roughly at a depth of 10 km (6 miles). Id of earthquake: us2000ar5m. Event ids that are associated: us2000ar5m. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 12:22:20 / 12:22 pm (local time epicenter). Exact location of earthquake, longitude -29.7553 West, latitude 40.0478 North, depth = 10 km. Global date and time of event UTC/GMT: 30/08/17 / 2017-08-30 14:22:20 / August 30, 2017 @ 2:22 pm.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days four and in the last 365 days nine earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 134 km ENE of Santa Cruz das Flores, Portugal. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -29.7553° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.0478° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 134km ENE of Santa Cruz das Flores, Portugal Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-30 14:22:20 Time when the event occurred. UTC/GMT
Updated 2017-09-20 11:11:55 Time when the event was most recently updated. UTC/GMT
Timezone offset -120 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 340 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 1.767 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 146 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 us2000ar5m Id of event.
Event Code 2000ar5m An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000ar5m, A comma-separated list of event ids that are associated to an event.

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