Earthquake with magnitude of ML 2.1 on date 20-08-2023 and time 00:59:49 (UTC) in region Tirreno Meridionale (MARE)

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

  • 20-08-2023 00:59:49 (UTC)
  • 20-08-2023 02:59:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5230, 15.4980 at 151 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
37 Km N of Messina (238439 inhabitants)
48 Km N of Reggio di Calabria (183035 inhabitants)
87 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 2023-08-20
00:59:49
38.5233 15.4982 151 2023-08-20
01:09:50
Sala Sismica INGV-Roma 120307571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-20 00:59:49 ± 0.26
Latitude 38.5233 ± 0.0153
Longitude 15.4982 ± 0.0218
Depth (km) 151 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120307571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2126
Semi-minor axis of confidence ellipse (meter) 807
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 2130.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.27344
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 120307571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-20 01:09:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2023-08-20T01:01:34.25 3.0 undecidable manual Pg 24.389999 0
IV.MURB.HNZ. 2023-08-20T01:01:28.75 3.0 undecidable manual Pg 22.139999 0
IV.AGLI.HHZ. 2023-08-20T01:01:25.07 3.0 undecidable manual Pg 14.27 0
IV.NOCI.HHZ. 2023-08-20T01:01:02.39 3.0 undecidable manual Sn -1.22 0
OT.CGL1.HHZ. 2023-08-20T01:01:02.96 3.0 undecidable manual Sn -2.35 0
IV.RCAV.EHZ. 2023-08-20T01:00:54.15 3.0 undecidable manual Pn 6.05 0
OT.OT17.EHZ. 2023-08-20T01:00:44.45 3.0 positive manual Pn 5.47 0
IX.NSC3.EHZ.02 2023-08-20T01:00:39.91 3.0 undecidable manual Pg 11.35 0
IV.CELI.HHZ. 2023-08-20T01:00:36.87 0.6 undecidable manual S 41 130.869 136 0.96 32
IV.SERS.HHZ. 2023-08-20T01:00:34.56 1.0 undecidable manual S 61 117.5934 139 0.56 19
IY.MCDA.HHZ.00 2023-08-20T01:00:34.74 1.0 undecidable manual S 64 128.5713 137 -0.83 17
IV.CET2.HHZ. 2023-08-20T01:00:33.88 0.6 undecidable manual S 19 118.2927 139 -0.21 42
IV.CAR1.HHZ. 2023-08-20T01:00:31.59 0.3 undecidable manual S 37 101.7204 144 -0.28 65
IV.PLAC.HHZ. 2023-08-20T01:00:29.82 0.6 undecidable manual S 95 82.0512 149 0.29 44
IV.SOI.EHZ. 2023-08-20T01:00:28.29 0.6 undecidable manual S 136 69.5748 154 0.05 48
IV.NOV.HHZ. 2023-08-20T01:00:27.70 0.6 undecidable manual S 210 63.2922 156 0.04 49
IV.IVPL.HHZ. 2023-08-20T01:00:27.04 0.3 undecidable manual S 250 47.8188 161 0.6 65
IY.SPDC.HHZ. 2023-08-20T01:00:26.63 0.6 undecidable manual S 89 55.0005 159 -0.34 47
IV.MSRU.HHZ. 2023-08-20T01:00:25.47 0.6 undecidable manual S 178 28.749 168 0.11 51
IV.SICLA.EHZ. 2023-08-20T01:00:25.07 0.3 undecidable manual S 148 35.0427 166 -0.59 69
XE.T0701.HHZ. 2023-08-20T01:00:20.18 3.0 positive manual Pn 0.86 0
IV.HAVL.HHZ. 2023-08-20T01:00:20.35 3.0 negative manual Pn -1.22 0
MN.CUC.HHZ. 2023-08-20T01:00:19.24 3.0 positive manual Pn 0.48 0
XE.MORMA.HHZ. 2023-08-20T01:00:18.21 3.0 negative manual Pn 0.41 0
IV.SSY.HHZ. 2023-08-20T01:00:18.25 3.0 undecidable manual Pn -1.26 0
XE.T0702.HHZ. 2023-08-20T01:00:17.06 1.0 positive manual Pn 0.38 0.56
IV.CELI.HHZ. 2023-08-20T01:00:16.62 0.6 undecidable manual P 41 130.869 136 0.33 40
IV.GRIS.EHZ. 2023-08-20T01:00:16.67 0.1 undecidable manual P 13 138.4614 135 -0.28 79
IV.HLNI.HHZ. 2023-08-20T01:00:16.85 0.1 undecidable manual P 203 141.3474 134 -0.36 77
IY.MCDA.HHZ.00 2023-08-20T01:00:16.39 0.1 undecidable manual P 64 128.5713 137 0.3 81
IV.SERS.HHZ. 2023-08-20T01:00:15.51 0.6 undecidable manual P 61 117.5934 139 0.33 41
IV.SELL.HHZ. 2023-08-20T01:00:15.11 1.0 undecidable manual P 62 110.2119 141 0.51 20
IV.SPS2.HHZ. 2023-08-20T01:00:14.29 1.0 positive manual P 40 111.8991 141 -0.44 20
IV.CET2.HHZ. 2023-08-20T01:00:14.98 1.0 undecidable manual P 19 118.2927 139 -0.26 21
IV.CAR1.HHZ. 2023-08-20T01:00:13.64 0.1 negative manual P 37 101.7204 144 -0.31 85
IV.GIZZ.HHZ. 2023-08-20T01:00:12.29 0.3 negative manual P 50 79.5648 150 -0.16 69
IV.PLAC.HHZ. 2023-08-20T01:00:12.90 0.1 negative manual P 95 82.0512 149 0.3 89
IV.NOV.HHZ. 2023-08-20T01:00:12.13 0.1 undecidable manual P 210 63.2922 156 0.6 86
IV.SOI.EHZ. 2023-08-20T01:00:12.08 0.6 negative manual P 136 69.5748 154 0.22 47
IV.AIO.HHZ. 2023-08-20T01:00:12.58 3.0 positive manual Pn 0.49 0
IY.SPDC.HHZ. 2023-08-20T01:00:11.31 0.3 positive manual P 89 55.0005 159 0.18 72
IV.IVPL.HHZ. 2023-08-20T01:00:10.90 0.1 undecidable manual P 250 47.8188 161 0.08 100
IV.SICLA.EHZ. 2023-08-20T01:00:09.97 0.1 undecidable manual P 148 35.0427 166 -0.4 95
IV.MSRU.HHZ. 2023-08-20T01:00:09.80 0.1 undecidable manual P 178 28.749 168 -0.4 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHN. ML:2.2 0.0000814 0.84 AML other m 2023-08-20T01:00:27.52
IY.SPDC.HHN. ML:2.4 0.00011599999999999999 1.46 AML other m 2023-08-20T01:00:29.96
IV.MSRU.HHE. ML:2.2 0.0000687 0.52 AML other m 2023-08-20T01:00:29.72
IV.GIZZ.HHE. ML:2.3 0.00008925 1.56 AML other m 2023-08-20T01:00:30.01
IV.GIZZ.HHN. ML:2.4 0.00009915 1.22 AML other m 2023-08-20T01:00:30.09
IV.CAR1.HHE. ML:2.2 0.00005925 1 AML other m 2023-08-20T01:00:32.38
IV.CAR1.HHN. ML:2.1 0.0000523 0.76 AML other m 2023-08-20T01:00:32.39
IV.CET2.HHE. ML:2.2 0.000053599999999999995 0.76 AML other m 2023-08-20T01:00:34.55
IY.SPDC.HHE. ML:2.5 0.0001535 0.48 AML other m 2023-08-20T01:00:35.10
IV.CET2.HHN. ML:2.7 0.000153 0.5 AML other m 2023-08-20T01:00:35.15
IV.SPS2.HHE. ML:1.6 0.00001375 0.9 AML other m 2023-08-20T01:00:35.13
IV.SELL.HHN. ML:1.6 0.00001705 0.48 AML other m 2023-08-20T01:00:35.64
IV.SERS.HHN. ML:2.0 0.0000355 1.28 AML other m 2023-08-20T01:00:36.28
IV.SELL.HHE. ML:1.6 0.000016899999999999997 0.72 AML other m 2023-08-20T01:00:36.96
IV.SERS.HHE. ML:1.9 0.0000233 1.02 AML other m 2023-08-20T01:00:36.47
XE.T0702.HHN. ML:1.8 0.00002205 0.62 AML other m 2023-08-20T01:00:37.46
IV.HLNI.HHN. ML:1.8 0.000020150000000000002 0.66 AML other m 2023-08-20T01:00:37.84
XE.T0702.HHE. ML:2.1 0.000035999999999999994 1.54 AML other m 2023-08-20T01:00:37.86
IY.MCDA.HHE.00 ML:2.4 0.00007435 0.38 AML other m 2023-08-20T01:00:37.70
IY.MCDA.HHN.00 ML:2.4 0.0000722 0.8 AML other m 2023-08-20T01:00:38.01
IV.SPS2.HHN. ML:1.6 0.0000161 0.42 AML other m 2023-08-20T01:00:38.36
IV.HLNI.HHE. ML:2.0 0.00002375 1.5 AML other m 2023-08-20T01:00:51.21
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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