Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 17-08-2023 and time 00:43:38 (Italy) in region Isole Eolie (Messina)

A magnitude ML 2.0 earthquake occured in region: Isole Eolie (Messina), on

  • 16-08-2023 22:43:38 (UTC)
  • 17-08-2023 00:43:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3710, 14.8450 at 122 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lipari ME 15 12753 12753

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km W of Messina (238439 inhabitants)
76 Km W of Reggio di Calabria (183035 inhabitants)
89 Km NW of Acireale (52622 inhabitants)
99 Km N of Catania (314555 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 2.0 2023-08-16
22:43:38		 38.3708 14.8448 122 2023-08-16
23:05:35		 Sala Sismica INGV-Roma 120205311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-16 22:43:38 ± 0.35
Latitude 38.3708 ± 0.0378
Longitude 14.8448 ± 0.0287
Depth (km) 122 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120205311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4147
Semi-minor axis of confidence ellipse (meter) 2330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 4150.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 290
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.25006
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 120205311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-16 23:05:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2023-08-16T22:44:50.62 3.0 undecidable manual Sg 0.68 0
IV.PLAC.HHZ. 2023-08-16T22:44:22.64 1.0 undecidable manual S 86 138.7611 127 0.85 16
IV.SOI.EHZ. 2023-08-16T22:44:16.46 1.0 undecidable manual S 107 110.4006 134 -0.69 21
IV.AIO.HHE. 2023-08-16T22:44:10.25 0.6 undecidable manual S 143 55.7997 153 0.14 47
IV.MSRU.HHZ. 2023-08-16T22:44:09.52 1.0 undecidable manual S 101 58.8966 152 -0.9 20
IV.NOV.HHE. 2023-08-16T22:44:09.80 0.6 undecidable manual S 146 45.7209 158 0.58 41
IV.MILZ.HHN. 2023-08-16T22:44:07.60 1.0 undecidable manual S 108 35.4423 162 -0.85 21
IV.IVPL.HNE. 2023-08-16T22:44:07.59 0.6 undecidable manual S 87 11.7771 174 0.18 52
IV.PLAC.HHZ. 2023-08-16T22:44:04.17 0.6 positive manual P 86 138.7611 127 0.8 35
IV.SOI.EHZ. 2023-08-16T22:44:00.77 0.3 positive manual P 107 110.4006 134 0.07 67
IY.CNDF.HHE. 2023-08-16T22:43:59.44 0.1 undecidable manual P 114 97.2249 138 -0.13 91
IV.MRCB.HHE. 2023-08-16T22:43:57.87 0.3 undecidable manual P 107 78.2661 144 -0.22 69
IV.AIO.HHE. 2023-08-16T22:43:56.62 0.1 undecidable manual P 143 55.7997 153 -0.02 100
IV.ECTS.HHZ. 2023-08-16T22:43:56.87 0.3 undecidable manual P 156 59.2962 152 0.03 74
IV.MSRU.HHZ. 2023-08-16T22:43:56.44 0.6 positive manual P 101 58.8966 152 -0.38 46
IV.MPNC.HHZ. 2023-08-16T22:43:56.09 0.6 undecidable manual P 119 50.7159 155 -0.27 48
IV.NOV.HHE. 2023-08-16T22:43:56.35 0.1 undecidable manual P 146 45.7209 158 0.23 98
IV.MILZ.HHN. 2023-08-16T22:43:55.28 0.3 undecidable manual P 108 35.4423 162 -0.4 71
IV.IVPL.HNE. 2023-08-16T22:43:55.39 0.3 undecidable manual P 87 11.7771 174 0.31 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:1.8 0.000037083065 0.6656 AML other m 2023-08-16T22:44:13.54
IV.MSRU.HHN. ML:1.8 0.00004044189 0.4608 AML other m 2023-08-16T22:44:10.91
IV.MSRU.HNE. ML:2.1 0.000082276995 5.1072 AML other m 2023-08-16T22:44:14.36
IV.PLAC.HNE. ML:2.2 0.000049763955 1.6384 AML other m 2023-08-16T22:44:31.36
IV.PLAC.HHE. ML:1.9 0.000031355215 1.7152 AML other m 2023-08-16T22:44:25.82
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
Waveforms Seismic signals in miniseed + resp format Download