Earthquake with magnitude of ML 2.1 on date 18-10-2023 and time 08:13:12 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 18-10-2023 08:13:12 (UTC)
  • 18-10-2023 10:13:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4920, 15.4430 at 170 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
34 Km N of Messina (238439 inhabitants)
46 Km NW of Reggio di Calabria (183035 inhabitants)
93 Km SW of Lamezia Terme (70714 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 2.1 2023-10-18
08:13:12
38.4915 15.4428 171 2023-10-18
08:37:26
Sala Sismica INGV-Roma 122170501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-18 08:13:12 ± 0.37
Latitude 38.4915 ± 0.0288
Longitude 15.4428 ± 0.0356
Depth (km) 171 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122170501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3776
Semi-minor axis of confidence ellipse (meter) 1607
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 3780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.11246
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 122170501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-18 08:37:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2023-10-18T08:14:40.21 3.0 undecidable manual Pn 3.46 0
IV.MOCO.HHZ. 2023-10-18T08:14:36.60 3.0 undecidable manual Sn -0.13 0
IV.MCI.EHZ. 2023-10-18T08:14:19.50 3.0 undecidable manual Pg 11.1 0
GE.MATE.HHZ. 2023-10-18T08:14:05.73 3.0 positive manual Pg 9.55 0
IV.SERS.HHZ. 2023-10-18T08:14:02.00 0.6 undecidable manual S 60 123.4875 142 0.52 38
IV.SELL.HHZ. 2023-10-18T08:14:01.10 0.6 undecidable manual S 62 116.0949 144 0.58 38
IV.CET2.HHZ. 2023-10-18T08:14:00.60 0.6 undecidable manual S 21 123.2877 142 -0.85 35
IV.PLAC.HHZ. 2023-10-18T08:13:56.60 0.3 undecidable manual S 93 86.5467 151 -0.5 62
IV.AIO.HHZ. 2023-10-18T08:13:55.90 0.6 undecidable manual S 198 60.495 159 1.14 33
IV.IVPL.HHZ. 2023-10-18T08:13:54.50 0.6 undecidable manual S 253 42.2244 165 0.95 37
IV.SOI.EHZ. 2023-10-18T08:13:54.90 0.6 undecidable manual S 131 70.5738 156 -0.68 39
IV.MRCB.HHZ. 2023-10-18T08:13:53.70 0.3 undecidable manual S 148 43.0236 165 0.1 74
IV.SICLA.EHZ. 2023-10-18T08:13:53.30 0.6 undecidable manual S 138 35.2425 168 0.1 50
IV.MPNC.HHE. 2023-10-18T08:13:53.76 0.6 undecidable manual S 192 39.0276 166 0.38 47
IV.MILZ.HHE. 2023-10-18T08:13:52.36 0.3 undecidable manual S 217 30.5472 169 -0.64 66
IV.SERS.HHZ. 2023-10-18T08:13:41.19 0.1 undecidable manual P 60 123.4875 142 0.25 81
IV.SELL.HHZ. 2023-10-18T08:13:40.75 0.1 undecidable manual P 62 116.0949 144 0.37 80
IV.CET2.HHZ. 2023-10-18T08:13:40.95 0.1 undecidable manual P 21 123.2877 142 0.04 84
IV.PLAC.HHZ. 2023-10-18T08:13:38.48 0.1 undecidable manual P 93 86.5467 151 0.08 91
IV.SOI.EHZ. 2023-10-18T08:13:37.54 0.1 undecidable manual P 131 70.5738 156 0.01 95
IV.AIO.HHZ. 2023-10-18T08:13:37.62 0.1 undecidable manual P 198 60.495 159 0.57 85
IV.MTTG.HHZ. 2023-10-18T08:13:37.28 0.1 undecidable manual P 157 58.5969 160 0.31 91
IV.GMB1.HHZ. 2023-10-18T08:13:36.72 0.1 undecidable manual P 137 48.1185 163 0.17 96
IV.IVPL.HHZ. 2023-10-18T08:13:36.32 0.1 undecidable manual P 253 42.2244 165 -0.03 100
IV.MRCB.HHZ. 2023-10-18T08:13:36.05 0.1 undecidable manual P 148 43.0236 165 -0.33 93
IV.SICLA.EHZ. 2023-10-18T08:13:35.62 0.1 undecidable manual P 138 35.2425 168 -0.53 90
IV.MPNC.HHE. 2023-10-18T08:13:35.76 0.1 undecidable manual P 192 39.0276 166 -0.5 90
IV.MILZ.HHE. 2023-10-18T08:13:35.55 0.1 undecidable manual P 217 30.5472 169 -0.48 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CET2.HHE. ML:2.5 0.00009114999999999999 0.62 AML other m 2023-10-18T08:14:01.29
IV.CET2.HHN. ML:2.7 0.0001245 1.7 AML other m 2023-10-18T08:14:02.07
IV.SELL.HHN. ML:1.8 0.000019250000000000004 0.44 AML other m 2023-10-18T08:14:02.35
IV.SELL.HHE. ML:2.0 0.000022499999999999998 0.48 AML other m 2023-10-18T08:14:02.60
IV.SERS.HHN. ML:2.0 0.00003115 1.46 AML other m 2023-10-18T08:14:02.23
IV.SERS.HHE. ML:2.3 0.000048 0.32 AML other m 2023-10-18T08:14:03.55
IV.MRCB.HHE. ML:2.0 0.000038185215 1.9584 AML other m 2023-10-18T08:13:54.71
IV.MRCB.HHN. ML:2.2 0.000057416894999999995 2.5408 AML other m 2023-10-18T08:13:56.13
IV.SOI.EHE. ML:2.0 0.00003330528 7.3984 AML other m 2023-10-18T08:14:00.51
IV.SOI.EHN. ML:1.8 0.000025093000000000002 4.6592 AML other m 2023-10-18T08:13:58.10
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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