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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 39 km WNW of Kasiguncu, Indonesia



Earthquake location -1.3246S, 120.3093WA light earthquake with magnitude 4.5 (ml/mb) was detected on Tuesday, 39 kilometers (24 miles) from Kasiguncu in Indonesia. The earthquake was roughly at a depth of 10 km (6 miles). Id of earthquake: us1000az5z. Event ids that are associated: us1000az5z. Exact location, longitude 120.3093° East, latitude -1.3246° South, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 23/10/17 / 2017-10-23 16:24:25 / October 23, 2017 @ 4:24 pm UTC/GMT. The 4.5-magnitude earthquake has occurred at 00:24:25 / 12:24 am (local time epicenter).

Nearby country/countries that might be effected, Indonesia (c. 242 968 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Palu, Poso (min 5000 pop). Epicenter of the event was 69 km (43 miles) from Palu (c. 282 400 pop), 50 km (31 miles) from Poso (c. 47 100 pop).

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

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 39 km WNW of Kasiguncu, Indonesia.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 120.3093° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -1.3246° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 39km WNW of Kasiguncu, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-23 16:24:25 Time when the event occurred. UTC/GMT
Updated 2017-11-06 19:59:13 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 2.465 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.38 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 60 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 us1000az5z Id of event.
Event Code 1000az5z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000az5z, A comma-separated list of event ids that are associated to an event.

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