Earthquake with magnitude of ML 2.0 on date 23-08-2018 and time 08:10:39 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 23-08-2018 08:10:39 (UTC)
  • 23-08-2018 10:10:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5160, 13.3840 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of Palermo (674435 inhabitants)
50 Km N of Bagheria (55387 inhabitants)
94 Km NE of Trapani (68759 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.0 2018-08-23
08:10:39
38.5163 13.3837 10 2019-04-24
14:50:58
Bollettino Sismico Italiano INGV 63608621
Reviewed
Rev100
ML 2.0 2018-08-23
08:10:40
38.5527 13.3833 15 2018-08-23
08:42:07
Sala Sismica INGV-Roma 60118431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-23 08:10:39 ± 0.16
Latitude 38.5163 ± 0.0099
Longitude 13.3837 ± 0.0218
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63608621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2000
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 2000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.24911
Epicentral distance of station farthest from the epicenter (degree) 1.50636
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 63608621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-03 10:43:42

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 60118431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-23 08:42:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2018-08-23T08:11:07.75 1.0 undecidable manual P 149 167.2104 50 0.61 16
IV.MNO.SHZ. 2018-08-23T08:11:01.55 1.0 undecidable manual P 119 131.4684 50 -0.08 21
IV.MARS.EHE. 2018-08-23T08:10:59.16 1.0 undecidable manual P 220 110.8002 50 0.71 18
IV.MMGO.HHN. 2018-08-23T08:10:57.22 1.0 undecidable manual P 201 101.2209 50 0.25 22
IV.PETRA.HHN. 2018-08-23T08:10:57.12 1.0 undecidable manual P 140 99.0231 50 0.49 21
IV.ALJA.HHZ. 2018-08-23T08:10:55.68 0.6 undecidable manual P 159 91.0422 50 0.28 44
IV.CRJA.HHN. 2018-08-23T08:10:54.78 0.6 undecidable manual P 203 85.9473 50 0.17 45
IV.MPG.SHZ. 2018-08-23T08:10:52.96 0.6 undecidable manual S 183 39.4272 50 -0.07 51
IV.MBFT.HHZ. 2018-08-23T08:10:52.80 0.6 undecidable manual P 211 73.5708 50 0.09 47
IV.CORL.HHZ. 2018-08-23T08:10:51.84 1.0 undecidable manual P 186 69.375 50 -0.22 23
IV.USI.HHZ. 2018-08-23T08:10:50.24 0.6 undecidable manual S 320 27.6501 50 0.34 49
IV.SOLUN.HHZ. 2018-08-23T08:10:48.86 0.1 undecidable manual P 165 48.8178 50 -0.04 100
IV.MPG.SHZ. 2018-08-23T08:10:46.46 0.6 undecidable manual P 183 39.4272 50 -0.98 38
IV.USI.HHZ. 2018-08-23T08:10:45.35 0.1 negative manual P 320 27.6501 50 -0.29 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.USI.HHE. ML:2.2 0.0007482254 0.16 AML other m 2018-08-23T08:10:50.44
IV.USI.HHN. ML:2.6 0.0022463500000000003 0.2432 AML other m 2018-08-23T08:10:51.26
IV.SOLUN.HHE. ML:1.5 0.00009187398499999999 1.7152 AML other m 2018-08-23T08:10:58.04
IV.SOLUN.HHN. ML:1.6 0.000106983885 0.3584 AML other m 2018-08-23T08:10:59.11
IV.CORL.HHN. ML:2.2 0.0002703038 0.32 AML other m 2018-08-23T08:11:05.38
IV.CORL.HHE. ML:2.3 0.0003641481 0.3008 AML other m 2018-08-23T08:11:04.57
IV.MBFT.HHE. ML:1.6 0.000064492045 0.3584 AML other m 2018-08-23T08:11:02.76
IV.MBFT.HHN. ML:1.6 0.000070214475 0.3392 AML other m 2018-08-23T08:11:04.97
IV.ALJA.HHN. ML:2.1 0.00014751695 0.6592 AML other m 2018-08-23T08:11:16.68
IV.ALJA.HHE. ML:2.0 0.0001154655 0.32 AML other m 2018-08-23T08:11:15.95
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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