Earthquake with magnitude of ML 1.7 on date 11-10-2023 and time 23:18:52 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.7 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 11-10-2023 21:18:52 (UTC)
  • 11-10-2023 23:18:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4990, 13.6590 at 3 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
48 Km N of Bagheria (55387 inhabitants)
50 Km NE of Palermo (674435 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
Reviewed
Rev100
ML 1.7 2023-10-11
21:18:52
38.4992 13.6587 3 2023-10-11
21:25:55
Sala Sismica INGV-Roma 121996641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-11 21:18:52 ± 0.39
Latitude 38.4992 ± 0.0171
Longitude 13.6587 ± 0.0172
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121996641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1877
Semi-minor axis of confidence ellipse (meter) 1366
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 1880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 257
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.39125
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 121996641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-11 21:25:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SRES.HHZ. 2023-10-11T21:20:39.84 3.0 undecidable manual Sn -2.72 0
IV.LMD.HHZ. 2023-10-11T21:20:29.69 3.0 undecidable manual Pg 7.77 0
IV.PE3.EHZ. 2023-10-11T21:20:22.42 3.0 undecidable manual Pg 7.28 0
IV.SACR.HHZ. 2023-10-11T21:20:20.87 3.0 undecidable manual Sg -1.63 0
OT.OT12.EHZ. 2023-10-11T21:19:55.17 3.0 negative manual Pg 3.24 0
IV.MRB1.HHZ. 2023-10-11T21:19:41.57 3.0 positive manual Pg 0.09 0
IV.MTMR.EHZ. 2023-10-11T21:19:39.08 3.0 undecidable manual Pg 0.06 0
IV.ALJA.HHZ. 2023-10-11T21:19:19.67 0.3 undecidable manual S 174 83.6496 50 0.87 54
IV.RAFF.HHZ. 2023-10-11T21:19:18.70 0.1 undecidable manual P 156 154.4343 50 0.24 76
IV.CORL.HHZ. 2023-10-11T21:19:16.20 0.6 undecidable manual S 205 73.8705 50 0 48
IV.CIMI.HHE. 2023-10-11T21:19:14.97 0.6 undecidable manual S 186 68.9754 50 0.09 47
IV.CSLB.HHE. 2023-10-11T21:19:14.12 0.6 undecidable manual S 151 71.373 50 -1.41 28
IV.PLLN.EHZ. 2023-10-11T21:19:14.79 0.6 undecidable manual S 143 70.2741 50 -0.45 44
IV.GIB.HHZ. 2023-10-11T21:19:13.62 0.6 undecidable manual S 150 64.8906 50 -0.19 47
IV.MARIO.HHE. 2023-10-11T21:19:13.72 0.6 undecidable manual S 198 63.5919 50 0.28 46
IV.MSFR.HHE. 2023-10-11T21:19:10.61 0.1 undecidable manual P 122 96.2259 50 1.12 63
IV.SOLUN.HHZ. 2023-10-11T21:19:08.32 0.6 undecidable manual S 194 46.5201 93 -0.01 50
IV.MPG.HHZ. 2023-10-11T21:19:07.97 0.6 undecidable manual S 215 45.621 93 -0.05 50
IV.ALJA.HHZ. 2023-10-11T21:19:07.71 0.1 undecidable manual P 174 83.6496 50 0.16 91
IV.MBFT.HHZ. 2023-10-11T21:19:07.39 0.1 undecidable manual P 225 86.8464 50 -0.65 79
IV.CORL.HHZ. 2023-10-11T21:19:06.29 0.1 undecidable manual P 205 73.8705 50 0.25 91
IV.PLLN.EHZ. 2023-10-11T21:19:05.11 1.0 negative manual P 143 70.2741 50 -0.38 22
IV.CIMI.HHE. 2023-10-11T21:19:05.42 0.1 undecidable manual P 186 68.9754 50 0.14 94
IV.MARIO.HHE. 2023-10-11T21:19:04.42 0.1 undecidable manual P 198 63.5919 50 -0.03 97
IV.CSLB.HHE. 2023-10-11T21:19:04.85 0.1 undecidable manual P 151 71.373 50 -0.81 76
IV.GIB.HHZ. 2023-10-11T21:19:04.35 1.0 negative manual P 150 64.8906 50 -0.31 23
IV.MPG.HHZ. 2023-10-11T21:19:01.29 0.1 undecidable manual P 215 45.621 93 -0.03 100
IV.SOLUN.HHZ. 2023-10-11T21:19:01.55 0.1 undecidable manual P 194 46.5201 93 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOLUN.HHN. ML:1.6 0.000129 0.42 AML other m 2023-10-11T21:19:08.62
IV.SOLUN.HHE. ML:1.6 0.00011745 1.68 AML other m 2023-10-11T21:19:09.00
IV.MPG.HHE. ML:1.3 0.0000528 1.22 AML other m 2023-10-11T21:19:10.04
IV.MPG.HHN. ML:1.2 0.0000433 0.44 AML other m 2023-10-11T21:19:10.63
IV.GIB.HHN. ML:1.9 0.0001625 0.5 AML other m 2023-10-11T21:19:14.02
IV.GIB.HHE. ML:1.9 0.000155 0.54 AML other m 2023-10-11T21:19:16.25
IV.CORL.HHE. ML:1.6 0.00006125 0.5 AML other m 2023-10-11T21:19:16.97
IV.PLLN.EHE. ML:1.8 0.0001095 1.2 AML other m 2023-10-11T21:19:17.07
IV.PLLN.EHN. ML:1.8 0.0001215 0.66 AML other m 2023-10-11T21:19:17.48
IV.CORL.HHN. ML:1.6 0.0000589 0.32 AML other m 2023-10-11T21:19:20.10
IV.ALJA.HHN. ML:1.8 0.00008810000000000001 1.4 AML other m 2023-10-11T21:19:20.26
IV.ALJA.HHE. ML:1.8 0.0000759 1.6 AML other m 2023-10-11T21:19:22.00
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