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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.5 quake has struck near Northern Mid-Atlantic Ridge

Posted by admin on August 22, 2015 0 Comments

Earthquake location 28.5085S, -43.5946WA light earthquake magnitude 4.5 (ml/mb) has occurred on Tuesday, Northern Mid-Atlantic Ridge (0 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us10002xu5. Id of event: us10002xu5. Global date and time of event UTC/GMT: 04/08/15 / 2015-08-04 07:03:45 / August 4, 2015 @ 7:03 am. The 4.5-magnitude earthquake was detected at 04:03:45 / 4:03 am (local time epicenter). Exact location, longitude -43.5946° West, latitude 28.5085° North, depth = 10 km. The earthquake occurred at a depth of 10 km (6 miles).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: Northern Mid-Atlantic Ridge.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -43.5946° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 28.5085° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place Northern Mid-Atlantic Ridge Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-08-04 07:03:45 Time when the event occurred. UTC/GMT
Updated 2015-08-22 11:58:53 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 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 312 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 17.703 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 111 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 us10002xu5 Id of event.
Event Code 10002xu5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10002xu5, A comma-separated list of event ids that are associated to an event.

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