Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 12-08-2023 and time 04:19:52 (Italy) in region Isole Eolie (Messina)

A magnitude ML 1.7 earthquake occured in region: Isole Eolie (Messina), on

  • 12-08-2023 02:19:52 (UTC)
  • 12-08-2023 04:19:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5990, 14.2130 at 10 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
84 Km NE of Bagheria (55387 inhabitants)
92 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 2023-08-12
02:19:52		 38.5987 14.2132 10 2023-08-12
02:35:59		 Sala Sismica INGV-Roma 120042761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-12 02:19:52 ± 0.19
Latitude 38.5987 ± 0.0108
Longitude 14.2132 ± 0.0104
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120042761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1170
Semi-minor axis of confidence ellipse (meter) 737
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.12860
Epicentral distance of station farthest from the epicenter (degree) 1.38046
Number of stations at which the event was observed 12
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 10
Type of magnitude ML
Reference to an origin 120042761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-12 02:35:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2023-08-12T02:20:17.42 1.0 negative manual P 175 153.2355 50 -0.22 19
IV.CSLB.HHZ. 2023-08-12T02:20:15.22 0.6 undecidable manual S 191 74.5698 50 0.17 46
IV.GIB.HHZ. 2023-08-12T02:20:14.13 0.6 undecidable manual S 194 69.4749 50 0.45 44
IV.PLLN.EHZ. 2023-08-12T02:20:13.04 0.6 undecidable manual S 185 67.4769 50 -0.12 47
IV.ALJA.HHZ. 2023-08-12T02:20:10.31 0.6 positive manual P 203 102.4197 50 0.49 40
IV.RESU.HHZ. 2023-08-12T02:20:10.75 1.0 undecidable manual P 187 106.4157 50 0.31 21
IV.USI.HHE. 2023-08-12T02:20:08.39 0.1 undecidable manual P 278 90.4428 50 0.43 84
IV.MPG.HHE. 2023-08-12T02:20:07.88 0.6 undecidable manual P 237 88.6446 50 0.19 44
IV.SOLUN.HHE. 2023-08-12T02:20:06.05 0.1 undecidable manual P 227 81.6516 50 -0.56 82
IV.CSLB.HHZ. 2023-08-12T02:20:05.04 0.6 negative manual P 191 74.5698 50 -0.49 43
IV.PLLN.EHZ. 2023-08-12T02:20:04.24 0.6 undecidable manual P 185 67.4769 50 -0.19 46
IV.MSFR.HHE. 2023-08-12T02:20:04.94 0.1 undecidable manual P 152 70.7736 50 0 96
IV.GIB.HHZ. 2023-08-12T02:20:04.41 1.0 undecidable manual P 194 69.4749 50 -0.32 22
IV.IFIL.HHE. 2023-08-12T02:20:03.74 0.6 undecidable manual S 97 31.6461 50 0.15 50
IV.IACL.HHE. 2023-08-12T02:19:59.29 0.6 undecidable manual S 121 14.2746 126 0.67 45
IV.IFIL.HHE. 2023-08-12T02:19:58.78 0.1 undecidable manual P 97 31.6461 50 -0.13 100
IV.IACL.HHE. 2023-08-12T02:19:55.75 0.1 undecidable manual P 121 14.2746 126 -0.29 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHE. ML:2.0 0.0001715 0.8 AML other m 2023-08-12T02:20:16.32
IV.CSLB.HHN. ML:1.4 0.000040300000000000004 0.42 AML other m 2023-08-12T02:20:16.41
IV.GIB.HHN. ML:1.9 0.00014450000000000002 1.36 AML other m 2023-08-12T02:20:16.87
IV.GIB.HHE. ML:1.9 0.000129 0.46 AML other m 2023-08-12T02:20:17.35
IV.CSLB.HHE. ML:1.6 0.000055900000000000004 1.16 AML other m 2023-08-12T02:20:19.08
IV.PLLN.EHN. ML:2.0 0.0001525 1.52 AML other m 2023-08-12T02:20:20.98
IV.RESU.HHN. ML:1.9 0.00006494999999999999 1.5 AML other m 2023-08-12T02:20:27.22
IV.RESU.HHE. ML:1.8 0.00005135 0.5 AML other m 2023-08-12T02:20:34.36
IV.CSLB.HNE. ML:1.6 0.00006442826999999999 1.0192 AML other m 2023-08-12T02:20:15.87
IV.CSLB.HNN. ML:1.4 0.000037836675 0.3984 AML other m 2023-08-12T02:20:16.18
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