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Light earthquake 4.5 mag, 40 km SSE of Palu, Indonesia


Earthquake location -1.2053S, 120.0587WA light earthquake magnitude 4.5 (ml/mb) strikes 40 kilometers (25 miles) from Palu in Indonesia on Friday. Exact location, longitude 120.0587° East, latitude -1.2053° South, depth = 10 km. Unique identifier: us1000h7bb. Ids that are associated to the event: us1000h7bb. Date and time of earthquake in UTC/GMT: 04/10/18 / 2018-10-04 22:08:34 / October 4, 2018 @ 10:08 pm. The 4.5-magnitude earthquake has occurred at 06:08:34 / 6:08 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 10 km (6 miles).

Epicenter of the event was 41 km (25 miles) from Palu (c. 282 400 pop), 80 km (50 miles) from Poso (c. 47 100 pop). Country/countries that might be effected, Indonesia (c. 242 968 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Poso, Palu (min 5000 pop).

Each 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 one, in the last 10 days thirty-two, in the past 30 days thirty-four and in the last 365 days fourty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby.

How would you describe the shaking?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 40 km SSE of Palu, Indonesia. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 120.0587° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -1.2053° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 40km SSE of Palu, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-04 22:08:34 Time when the event occurred. UTC/GMT
Updated 2018-10-04 22:32:39 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 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 2.411 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.28 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 87 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 us1000h7bb Id of event.
Event Code 1000h7bb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h7bb, A comma-separated list of event ids that are associated to an event.

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