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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Alotau in Papua New Guinea


Earthquake location -9.4634S, 150.9417WA light earthquake magnitude 4 (ml/mb) strikes 112 km NNE of Alotau, Papua New Guinea (70 miles) on Thursday. Id of earthquake: us70003cd9. Event ids that are associated: us70003cd9. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 17/04/19 / 2019-04-17 19:03:33 / April 17, 2019 @ 7:03 pm. The earthquake was roughly at a depth of 10 km (6 miles). The temblor was reported at 05:03:33 / 5:03 am (local time epicenter). Exact location of event, longitude 150.9417 East, latitude -9.4634 South, depth = 10 km.

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

Questions or comments?

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. 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: 112 km NNE of Alotau, Papua New Guinea.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 150.9417° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -9.4634° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 112km NNE of Alotau, Papua New Guinea Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-04-17 19:03:33 Time when the event occurred. UTC/GMT
Updated 2019-05-16 22:32:24 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 246 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 3.731 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 166 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 us70003cd9 Id of event.
Event Code 70003cd9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70003cd9, A comma-separated list of event ids that are associated to an event.

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