Earthquake with magnitude of ML 2.0 on date 21-04-2023 and time 23:02:43 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 21-04-2023 23:02:43 (UTC)
  • 22-04-2023 01:02:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4750, 15.4980 at 133 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
32 Km N of Messina (238439 inhabitants)
43 Km N of Reggio di Calabria (183035 inhabitants)
91 Km SW of Lamezia Terme (70714 inhabitants)
100 Km N of Acireale (52622 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
Bulletin
Rev1000
ML 2.0 2023-04-21
23:02:43
38.475 15.4978 133 2024-03-01
17:18:11
Bollettino Sismico Italiano INGV 118234741
Reviewed
Rev100
ML 2.0 2023-04-21
23:02:43
38.4445 15.5457 135 2023-04-21
23:15:47
Sala Sismica INGV-Roma 116586621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-21 23:02:43 ± 0.19
Latitude 38.4750 ± 0.0108
Longitude 15.4978 ± 0.0172
Depth (km) 133 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118234741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1292
Semi-minor axis of confidence ellipse (meter) 1245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 1290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.21134
Epicentral distance of station farthest from the epicenter (degree) 1.29412
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 118234741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-09 08:44:01

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 116586621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-21 23:15:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IY.CNDF.HHN.00 2023-04-21T23:03:18.48 0.3 undecidable manual S 149 60.9945 153 0.37 68
IV.SOI.EHZ. 2023-04-21T23:03:18.22 0.3 undecidable manual S 132 65.8896 152 -0.37 67
IY.SPDC.HHN. 2023-04-21T23:03:17.90 0.6 undecidable manual S 84 55.4001 156 0.31 46
TV.GMB1.HHZ. 2023-04-21T23:03:16.88 0.6 undecidable manual S 140 43.623 160 0.24 48
IV.ISTR.HHE. 2023-04-21T23:03:16.98 0.6 undecidable manual S 323 43.5231 160 0.34 46
IV.MPNC.HHE. 2023-04-21T23:03:16.17 0.6 undecidable manual S 199 38.5281 163 -0.12 50
IT.SAAM.HNE. 2023-04-21T23:03:16.56 0.6 undecidable manual S 146 40.4262 162 0.14 49
IV.MRCB.HHZ. 2023-04-21T23:03:16.70 0.6 undecidable manual S 153 39.0276 162 0.38 47
IV.MILZ.HHZ. 2023-04-21T23:03:16.08 0.6 undecidable manual S 226 32.3454 165 0.15 49
IV.IST3.HHZ. 2023-04-21T23:03:16.63 0.6 undecidable manual S 327 42.8238 161 0.05 49
IV.MSRU.HHZ. 2023-04-21T23:03:15.09 0.3 undecidable manual S 178 23.4543 169 -0.41 72
IV.SICLA.EHZ. 2023-04-21T23:03:15.22 0.3 undecidable manual S 142 30.747 166 -0.62 67
IV.GRIS.EHZ. 2023-04-21T23:03:10.04 0.1 undecidable manual P 12 143.6451 129 -0.01 82
IV.CET2.HHZ. 2023-04-21T23:03:08.14 0.1 undecidable manual P 18 123.3876 134 -0.02 86
IV.SELL.HHZ. 2023-04-21T23:03:07.52 0.1 undecidable manual P 60 112.8981 137 0.28 83
IV.SPS2.HHZ. 2023-04-21T23:03:07.37 0.1 undecidable manual P 38 116.0949 136 -0.15 84
IV.CAR1.HHZ. 2023-04-21T23:03:06.29 0.1 undecidable manual P 35 106.116 138 -0.38 82
IV.MPAZ.HNE. 2023-04-21T23:03:04.13 0.1 negative manual P 142 72.9714 149 -0.09 93
IV.PLAC.HHZ. 2023-04-21T23:03:04.65 1.0 undecidable manual P 92 81.7515 146 -0.17 22
IY.SPDC.HHN. 2023-04-21T23:03:03.50 0.1 undecidable manual P 84 55.4001 156 0.29 93
IY.CNDF.HHN.00 2023-04-21T23:03:03.48 0.1 positive manual P 149 60.9945 153 -0.03 96
IV.SOI.EHZ. 2023-04-21T23:03:03.64 0.1 positive manual P 132 65.8896 152 -0.15 93
IV.IST3.HHZ. 2023-04-21T23:03:03.08 0.6 undecidable manual P 327 42.8238 161 0.45 46
IT.ARMO.HNZ. 2023-04-21T23:03:03.24 0.6 undecidable manual P 157 48.0186 159 0.39 46
IV.FERC.HHE.00 2023-04-21T23:03:03.61 0.6 undecidable manual P 92 54.8007 156 0.43 45
1J.FX12.HHZ.00 2023-04-21T23:03:03.15 0.1 negative manual P 156 46.8198 159 0.35 93
IV.AIO.HHZ. 2023-04-21T23:03:03.91 0.3 undecidable manual P 203 60.495 154 0.43 67
IV.MRCB.HHZ. 2023-04-21T23:03:02.27 0.3 undecidable manual P 153 39.0276 162 -0.21 73
IV.ISTR.HHE. 2023-04-21T23:03:02.54 0.6 undecidable manual P 323 43.5231 160 -0.12 49
IV.IVPL.HHZ. 2023-04-21T23:03:02.83 0.1 undecidable manual P 256 46.3203 159 0.05 99
IV.MPNC.HHE. 2023-04-21T23:03:02.99 0.6 undecidable manual P 199 38.5281 163 0.53 45
IT.SAAM.HNE. 2023-04-21T23:03:02.82 0.6 undecidable manual P 146 40.4262 162 0.29 48
TV.GMB1.HHZ. 2023-04-21T23:03:02.66 0.1 undecidable manual P 140 43.623 160 -0.01 100
IY.OPPI.HHE. 2023-04-21T23:03:02.96 0.6 undecidable manual P 117 50.1165 158 0.01 50
IV.SICLA.EHZ. 2023-04-21T23:03:01.78 0.1 undecidable manual P 142 30.747 166 -0.42 94
IV.MILZ.HHZ. 2023-04-21T23:03:01.95 0.1 undecidable manual P 226 32.3454 165 -0.3 96
IV.MSRU.HHZ. 2023-04-21T23:03:01.55 0.1 positive manual P 178 23.4543 169 -0.46 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MILZ.HHN. ML:2.1 0.000069004305 0.4224 AML other m 2023-04-21T23:03:16.28
IV.MSRU.HHN. ML:2.0 0.00005643288499999999 0.2432 AML other m 2023-04-21T23:03:16.54
IV.MSRU.HHE. ML:2.1 0.000071225895 0.3968 AML other m 2023-04-21T23:03:15.65
IV.MILZ.HHE. ML:1.9 0.000046975345 0.576 AML other m 2023-04-21T23:03:17.04
IV.MRCB.HHE. ML:2.0 0.00006735 1.48 AML other m 2023-04-21T23:03:18.98
TV.GMB1.HNN. ML:2.0 0.00006220000000000001 0.64 AML other m 2023-04-21T23:03:18.70
TV.GMB1.HHN. ML:1.5 0.0000216 0.64 AML other m 2023-04-21T23:03:18.38
TV.GMB1.HNE. ML:2.1 0.0000696 1.02 AML other m 2023-04-21T23:03:18.07
TV.GMB1.HHE. ML:1.4 0.00001727449 0.1408 AML other m 2023-04-21T23:03:18.30
IV.MRCB.HHN. ML:2.1 0.00007525 1.58 AML other m 2023-04-21T23:03:18.87
IV.SOI.EHN. ML:2.0 0.00004910000000000001 0.64 AML other m 2023-04-21T23:03:18.62
IV.SOI.EHE. ML:1.8 0.0000315 0.24 AML other m 2023-04-21T23:03:19.67
IV.PLAC.HHE. ML:2.0 0.0000494 0.72 AML other m 2023-04-21T23:03:20.47
IV.PLAC.HHN. ML:2.1 0.00005345 0.4 AML other m 2023-04-21T23:03:20.53
IV.CAR1.HHN. ML:2.1 0.0000499 1.06 AML other m 2023-04-21T23:03:24.74
IV.CAR1.HHE. ML:2.0 0.000039399999999999995 0.42 AML other m 2023-04-21T23:03:25.67
IV.SPS2.HHN. ML:1.6 0.0000164 0.3 AML other m 2023-04-21T23:03:26.50
IV.CET2.HHE. ML:2.1 0.000047350000000000006 0.4 AML other m 2023-04-21T23:03:26.77
IV.SPS2.HHE. ML:1.4 0.000009175 0.54 AML other m 2023-04-21T23:03:26.57
IV.CET2.HHN. ML:2.5 0.0001027 0.32 AML other m 2023-04-21T23:03:27.46
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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