Earthquake with magnitude of ML 1.8 on date 20-10-2020 and time 18:25:40 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 20-10-2020 18:25:40 (UTC)
  • 20-10-2020 20:25:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.48, 15.49 at 131 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
33 Km N of Messina (238439 inhabitants)
44 Km NW of Reggio di Calabria (183035 inhabitants)
91 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
Bulletin
Rev1000
ML 1.8 2020-10-20
18:25:40
38.48 15.49 131 2021-02-26
14:56:11
Bollettino Sismico Italiano INGV 85494451
Reviewed
Rev100
ML 1.8 2020-10-20
18:25:40
38.49 15.51 131 2020-10-20
18:39:47
Sala Sismica INGV-Roma 83961591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-20 18:25:40 ± 0.18
Latitude 38.48 ± 0.01
Longitude 15.49 ± 0.02
Depth (km) 131 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85494451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1350
Semi-minor axis of confidence ellipse (meter) 618
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 1350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.21854
Epicentral distance of station farthest from the epicenter (degree) 1.28873
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 85494451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-04 18:36:22

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 83961591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-20 18:39:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GRIS.EHE. 2020-10-20T18:26:25.74 0.6 undecidable manual S 13 1.2887 129 0.16 40
IV.CET2.HHZ. 2020-10-20T18:26:22.06 0.3 undecidable manual S 19 1.1062 133 -0.23 62
IV.SERS.HHZ. 2020-10-20T18:26:22.21 0.6 undecidable manual S 59 1.0855 134 0.28 41
IV.CAR1.HHZ. 2020-10-20T18:26:19.43 0.6 undecidable manual S 36 0.9533 138 -0.3 42
IV.PLAC.HHZ. 2020-10-20T18:26:16.63 0.3 undecidable manual S 92 0.7428 145 0.04 70
IV.SOI.EHN. 2020-10-20T18:26:14.66 0.6 undecidable manual S 133 0.6025 151 -0.15 47
IV.GMB.BHZ. 2020-10-20T18:26:13.45 0.6 undecidable manual S 140 0.411 159 0.58 44
IV.MTTG.HHZ. 2020-10-20T18:26:13.40 0.3 undecidable manual S 161 0.5063 155 -0.36 69
MN.CEL.HHZ. 2020-10-20T18:26:12.70 0.3 undecidable manual S 125 0.3867 160 0.04 75
IV.MILZ.HHZ. 2020-10-20T18:26:12.10 0.3 undecidable manual S 224 0.2923 165 0.11 76
IV.JOPP.HHZ. 2020-10-20T18:26:12.40 0.3 undecidable manual S 68 0.3336 163 0.13 75
IV.MSRU.HHZ. 2020-10-20T18:26:11.50 0.3 undecidable manual S 176 0.2185 169 -0.09 78
IV.GRIS.EHE. 2020-10-20T18:26:06.25 0.6 undecidable manual P 13 1.2887 129 -0.12 41
IV.CELI.HHE. 2020-10-20T18:26:06.02 0.3 undecidable manual P 40 1.2141 131 0.45 58
IV.SERS.HHZ. 2020-10-20T18:26:04.52 0.3 undecidable manual P 59 1.0855 134 0.26 62
IV.CET2.HHZ. 2020-10-20T18:26:04.55 0.3 undecidable manual P 19 1.1062 133 0.08 64
IV.CAR1.HHZ. 2020-10-20T18:26:02.66 0.6 undecidable manual P 36 0.9533 138 -0.34 42
IV.PLAC.HHZ. 2020-10-20T18:26:01.19 0.1 undecidable manual P 92 0.7428 145 0.01 94
IV.SOI.EHN. 2020-10-20T18:26:00.04 0.1 undecidable manual P 133 0.6025 151 -0.11 95
IV.AIO.HHE. 2020-10-20T18:26:00.35 0.3 undecidable manual P 202 0.5486 153 0.55 65
IV.MTTG.HHZ. 2020-10-20T18:25:59.71 0.3 undecidable manual P 161 0.5063 155 0.17 72
IV.IVPL.HNZ. 2020-10-20T18:25:59.27 0.6 undecidable manual P 255 0.4128 159 0.23 48
IV.GMB.BHZ. 2020-10-20T18:25:59.15 0.3 undecidable manual P 140 0.411 159 0.12 74
IV.IVUG.HHZ. 2020-10-20T18:25:59.10 0.3 undecidable manual P 258 0.4038 160 0.11 74
IV.MILZ.HHZ. 2020-10-20T18:25:58.35 0.1 undecidable manual P 224 0.2923 165 -0.17 100
IV.JOPP.HHZ. 2020-10-20T18:25:58.53 0.1 undecidable manual P 68 0.3336 163 -0.15 100
IV.SICLA.EHZ. 2020-10-20T18:25:58.05 1.0 undecidable manual P 142 0.286 165 -0.46 24
MN.CEL.HHZ. 2020-10-20T18:25:58.75 0.1 positive manual P 125 0.3867 160 -0.16 98
IV.MSRU.HHZ. 2020-10-20T18:25:57.92 0.1 undecidable manual P 176 0.2185 169 -0.37 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:1.8 4.0616465E-5 1.6672 AML other m 2020-10-20T18:26:12.03
IV.JOPP.HHE. ML:1.9 4.391952E-5 0.1408 AML other m 2020-10-20T18:26:12.84
IV.MILZ.HHN. ML:2.1 8.0529795E-5 0.384 AML other m 2020-10-20T18:26:12.67
IV.MSRU.HHN. ML:1.8 3.995629E-5 0.192 AML other m 2020-10-20T18:26:12.92
MN.CEL.HHN. ML:1.8 3.591728E-5 0.32 AML other m 2020-10-20T18:26:13.10
MN.CEL.HNN. ML:1.9 4.6620835E-5 0.32 AML other m 2020-10-20T18:26:13.26
MN.CEL.HNE. ML:1.8 4.0735535E-5 0.2944 AML other m 2020-10-20T18:26:13.35
IV.JOPP.HHN. ML:2 5.5109405E-5 0.1408 AML other m 2020-10-20T18:26:13.37
IV.MILZ.HHE. ML:2 6.7082425E-5 0.32 AML other m 2020-10-20T18:26:13.80
MN.CEL.HHE. ML:1.8 3.4459145E-5 0.3328 AML other m 2020-10-20T18:26:14.53
IV.PLAC.HHN. ML:1.9 3.4818675E-5 1.5776 AML other m 2020-10-20T18:26:16.95
IV.PLAC.HNN. ML:1.8 2.8404475E-5 1.6928 AML other m 2020-10-20T18:26:17.05
IV.PLAC.HNE. ML:2 4.5016975E-5 1.6416 AML other m 2020-10-20T18:26:18.87
IV.PLAC.HHE. ML:1.8 3.016231E-5 0.4224 AML other m 2020-10-20T18:26:19.49
IV.CAR1.HHN. ML:1.7 1.837965E-5 0.32 AML other m 2020-10-20T18:26:20.45
IV.CAR1.HHE. ML:1.8 2.6127705E-5 0.32 AML other m 2020-10-20T18:26:20.83
IV.CET2.HHE. ML:2 3.359627E-5 1.5776 AML other m 2020-10-20T18:26:23.91
IV.CET2.HHN. ML:2.2 6.250672E-5 0.384 AML other m 2020-10-20T18:26:23.64
IV.SERS.HHE. ML:1.4 9.8997645E-6 0.32 AML other m 2020-10-20T18:26:24.15
IV.SERS.HHN. ML:1.4 8.216019E-6 0.2176 AML other m 2020-10-20T18:26:24.86
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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