Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 24-05-2020 and time 22:40:50 (Italy) in region 3 km SW Castel Giorgio (TR)

A magnitude ML 2.3 earthquake occured in region: 3 km SW Castel Giorgio (TR), on

  • 24-05-2020 20:40:50 (UTC)
  • 24-05-2020 22:40:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6820, 11.9600 at 11 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.

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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
Castel Giorgio TR 4 2131 2131
San Lorenzo Nuovo VT 4 2091 4222
Bolsena VT 5 3991 8213
Grotte di Castro VT 7 2683 10896
Castel Viscardo TR 9 2938 13834
Gradoli VT 9 1353 15187
Acquapendente VT 10 5506 20693
Porano TR 12 1966 22659
Onano VT 12 995 23654
Latera VT 12 836 24490
Orvieto TR 13 20630 45120
Bagnoregio VT 13 3650 48770
Lubriano VT 13 909 49679
Proceno VT 14 557 50236
Allerona TR 15 1794 52030
Capodimonte VT 15 1731 53761
Marta VT 16 3499 57260
Valentano VT 17 2868 60128
Montefiascone VT 17 13432 73560
Celleno VT 19 1355 74915
Ficulle TR 19 1669 76584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Viterbo (67173 inhabitants)
58 Km W of Terni (111501 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
67 Km N of Civitavecchia (52991 inhabitants)
68 Km W of Foligno (57155 inhabitants)
70 Km E of Grosseto (82087 inhabitants)
87 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 inhabitants)
98 Km NW of Roma (2864731 inhabitants)
99 Km NW of Guidonia Montecelio (88673 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 2.3 2020-05-24
20:40:50		 42.6815 11.96 11 2020-11-19
12:37:04		 Bollettino Sismico Italiano INGV 83776091
Reviewed
Rev100 		ML 2.2 2020-05-24
20:40:50		 42.6883 11.9787 11 2020-05-24
20:48:21		 Sala Sismica INGV-Roma 79528271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-24 20:40:50 ± 0.1
Latitude 42.6815 ± 0.0054
Longitude 11.9600 ± 0.0049
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83776091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 421
Semi-minor axis of confidence ellipse (meter) 361
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.08638
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 83776091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-23 15:41:00

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 79528271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-24 20:48:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-05-24T20:46:02.40 3.0 undecidable manual S 9.999 0
IV.NDIM.HNZ. 2020-05-24T20:42:03.44 3.0 undecidable manual Sg 5.32 0
IV.MIDA.HHZ. 2020-05-24T20:41:56.57 3.0 undecidable manual Sg 2.4 0
IV.CMPR.HHZ. 2020-05-24T20:41:46.69 3.0 undecidable manual P 2.08 0
IV.PTRJ.HNZ. 2020-05-24T20:41:34.08 3.0 undecidable manual P 5 0
IV.ROSPO.HHZ. 2020-05-24T20:41:30.27 3.0 undecidable manual P 2.36 0
IV.PE3.EHZ. 2020-05-24T20:41:11.60 0.6 undecidable manual P 21 120.5904 50 1.15 28
IV.EL6.EHZ. 2020-05-24T20:41:10.80 0.3 undecidable manual P 52 117.1938 50 0.87 48
IV.PARC.HHZ. 2020-05-24T20:41:09.20 0.6 undecidable manual P 12 109.6125 50 0.45 38
IV.CSNT.HHZ. 2020-05-24T20:41:08.57 0.6 undecidable manual P 329 103.2189 50 0.8 34
IV.PIEI.HHZ. 2020-05-24T20:41:08.42 0.3 undecidable manual P 26 105.6165 50 0.29 60
IV.MOMA.HHZ. 2020-05-24T20:41:07.17 0.6 undecidable manual S 75 51.5151 50 0.49 42
IV.FDMO.HHZ. 2020-05-24T20:41:07.77 1.0 undecidable manual P 66 99.7224 50 0.54 19
IV.CASP.HHZ. 2020-05-24T20:41:07.13 0.1 positive manual P 278 90.0432 50 1.4 52
IV.ATPI.EHZ. 2020-05-24T20:41:06.25 0.1 negative manual P 23 92.5407 50 0.13 85
IV.FROS.CHE. 2020-05-24T20:41:06.09 0.3 undecidable manual P 312 87.7455 50 0.71 54
IV.BADI.EHZ. 2020-05-24T20:41:06.52 0.3 undecidable manual P 14 94.7385 50 0.07 64
IV.ATVO.HHZ. 2020-05-24T20:41:05.05 0.1 positive manual P 25 85.7475 50 -0.03 88
IV.ARCI.HHZ. 2020-05-24T20:41:05.10 0.6 undecidable manual S 296 43.7229 50 0.49 43
IV.BARO.EHZ. 2020-05-24T20:41:05.45 0.6 undecidable manual S 171 48.7179 50 -0.47 43
IV.MURB.HHZ. 2020-05-24T20:41:04.23 0.6 undecidable manual P 35 79.1652 50 0.17 43
IV.ATLO.EHE. 2020-05-24T20:41:03.62 0.3 undecidable manual P 27 79.0653 50 -0.44 61
IV.MAON.HHZ. 2020-05-24T20:41:03.91 0.6 undecidable manual P 248 73.371 50 0.74 37
IV.ATMI.HHZ. 2020-05-24T20:41:03.65 0.3 undecidable manual P 19 76.5678 50 -0.02 67
IV.ATCC.EHZ. 2020-05-24T20:41:03.93 0.3 undecidable manual P 44 78.5658 50 -0.04 67
TV.SF01.EHZ. 2020-05-24T20:41:02.34 0.6 undecidable manual S 294 35.4423 50 -0.04 48
IV.ATTE.HHZ. 2020-05-24T20:41:02.06 0.1 negative manual P 29 65.5899 50 0.09 90
IV.ARRO.EHZ. 2020-05-24T20:41:02.07 1.0 undecidable manual P 100 66.6777 50 -0.07 23
IV.ASSB.HHN. 2020-05-24T20:41:02.40 0.6 undecidable manual P 55 69.4749 50 -0.17 44
IV.SRES.HHZ. 2020-05-24T20:41:02.38 1.0 undecidable manual P 137 66.7776 50 0.23 22
TV.SF13.HHN. 2020-05-24T20:41:01.33 0.6 undecidable manual S 299 31.6461 50 -0.04 48
IV.TOLF.HHZ. 2020-05-24T20:41:01.96 0.3 undecidable manual P 177 68.5758 50 -0.47 62
TV.SF04.EHZ. 2020-05-24T20:41:00.53 0.3 undecidable manual S 305 29.8479 50 -0.35 68
TV.SF14.HHN. 2020-05-24T20:41:00.60 0.6 undecidable manual S 286 29.3484 50 -0.15 47
IV.MGAB.HHZ. 2020-05-24T20:41:00.28 0.3 undecidable manual S 26 28.4493 50 -0.25 70
TV.SF11.HHZ. 2020-05-24T20:41:00.80 0.3 undecidable manual S 312 30.9468 50 -0.38 68
IV.BARO.EHZ. 2020-05-24T20:40:59.02 0.1 positive manual P 171 48.7179 50 -0.34 88
TV.SF03.EHN. 2020-05-24T20:40:59.70 0.3 undecidable manual S 301 26.0517 50 -0.19 71
IV.MCIV.CHZ. 2020-05-24T20:40:59.67 0.6 undecidable manual S 295 25.4523 50 -0.06 49
IV.MOMA.HHZ. 2020-05-24T20:40:59.39 0.3 undecidable manual P 75 51.5151 50 -0.41 65
IV.CESX.HHZ. 2020-05-24T20:40:59.97 0.3 undecidable manual P 99 51.8037 50 0.13 69
IV.ARCI.HHZ. 2020-05-24T20:40:58.77 0.3 undecidable manual P 296 43.7229 50 0.17 69
IV.SACS.HHZ. 2020-05-24T20:40:57.80 0.3 undecidable manual S 348 19.0698 119 -0.19 72
TV.SF01.EHZ. 2020-05-24T20:40:57.39 0.3 undecidable manual P 294 35.4423 50 0.07 72
TV.SF14.HHN. 2020-05-24T20:40:56.30 0.1 positive manual P 286 29.3484 50 -0.08 96
TV.SF13.HHN. 2020-05-24T20:40:56.68 0.1 positive manual P 299 31.6461 50 -0.05 96
TV.SF04.EHZ. 2020-05-24T20:40:56.31 0.1 positive manual P 305 29.8479 50 -0.14 95
TV.SF11.HHZ. 2020-05-24T20:40:56.50 0.3 undecidable manual P 312 30.9468 50 -0.12 71
IV.LATE.HHZ. 2020-05-24T20:40:56.88 0.3 undecidable manual S 239 14.7741 126 0.14 73
TV.SF03.EHN. 2020-05-24T20:40:55.80 0.1 positive manual P 301 26.0517 50 -0.09 97
IV.MCIV.CHZ. 2020-05-24T20:40:55.60 0.1 positive manual P 295 25.4523 50 -0.19 95
IV.MGAB.HHZ. 2020-05-24T20:40:55.66 0.1 positive manual P 26 28.4493 50 -0.59 85
IV.SACS.HHZ. 2020-05-24T20:40:54.46 0.1 positive manual P 348 19.0698 119 -0.32 93
IV.LATE.HHZ. 2020-05-24T20:40:54.08 0.1 positive manual P 239 14.7741 126 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:2.6 0.00329 0.46 AML other m 2020-05-24T20:40:58.03
IV.SACS.HNN. ML:2.6 0.0028599999999999997 1.32 AML other m 2020-05-24T20:40:58.03
IV.SACS.HNE. ML:2.7 0.00409 0.22 AML other m 2020-05-24T20:40:58.27
IV.SACS.HHE. ML:2.7 0.004085 0.22 AML other m 2020-05-24T20:40:58.16
IV.LATE.HHE. ML:2.5 0.00294 0.96 AML other m 2020-05-24T20:40:58.16
IV.LATE.HHN. ML:2.6 0.004205 1.12 AML other m 2020-05-24T20:40:59.22
IV.MGAB.HHE. ML:2.4 0.001185 0.4 AML other m 2020-05-24T20:41:00.79
IV.MGAB.HNE. ML:2.4 0.0011949999999999999 1.54 AML other m 2020-05-24T20:41:01.79
IV.MCIV.CHN. ML:2.0 0.000589 0.66 AML other m 2020-05-24T20:41:01.04
IV.MGAB.HHN. ML:2.3 0.0011149999999999999 0.64 AML other m 2020-05-24T20:41:01.05
IV.MCIV.CHE. ML:2.1 0.0006605 0.26 AML other m 2020-05-24T20:41:01.71
TV.SF04.EHN. ML:2.5 0.0014550000000000001 1.32 AML other m 2020-05-24T20:41:02.91
TV.SF04.EHE. ML:2.3 0.0009425000000000001 0.28 AML other m 2020-05-24T20:41:04.65
IV.MGAB.HNN. ML:2.2 0.0008595 0.2 AML other m 2020-05-24T20:41:04.80
TV.SF01.EHN. ML:2.2 0.000697 1.64 AML other m 2020-05-24T20:41:04.98
TV.SF01.EHE. ML:2.2 0.0006085 1.12 AML other m 2020-05-24T20:41:05.40
IV.ARCI.HHN. ML:1.7 0.000158 1.72 AML other m 2020-05-24T20:41:07.10
IV.ARCI.HHE. ML:1.7 0.0001435 0.32 AML other m 2020-05-24T20:41:07.18
IV.BARO.HNE. ML:2.1 0.00035150000000000003 1.4 AML other m 2020-05-24T20:41:07.29
IV.BARO.EHE. ML:2.0 0.0002935 1.42 AML other m 2020-05-24T20:41:07.99
IV.MOMA.HNE. ML:2.2 0.0003705 1.24 AML other m 2020-05-24T20:41:08.12
IV.MOMA.HHE. ML:2.2 0.0004325 1.24 AML other m 2020-05-24T20:41:08.12
IV.BARO.EHN. ML:2.2 0.000383 1.54 AML other m 2020-05-24T20:41:08.06
IV.BARO.HNN. ML:2.2 0.0004255 1.56 AML other m 2020-05-24T20:41:08.06
IV.MOMA.HHN. ML:2.2 0.000365 1.76 AML other m 2020-05-24T20:41:08.97
IV.MOMA.HNN. ML:2.2 0.0003665 0.68 AML other m 2020-05-24T20:41:08.97
IV.CESX.HHN. ML:1.8 0.00015150000000000002 0.3 AML other m 2020-05-24T20:41:12.83
IV.ATTE.HHN. ML:2.3 0.00036449999999999997 1.08 AML other m 2020-05-24T20:41:13.26
IV.CESX.HHE. ML:2.0 0.000229 0.42 AML other m 2020-05-24T20:41:14.24
IV.ATTE.HHE. ML:2.2 0.00028100000000000005 1.2 AML other m 2020-05-24T20:41:14.80
IV.SRES.HHE. ML:1.7 0.00008585000000000001 0.72 AML other m 2020-05-24T20:41:14.91
IV.SRES.HHN. ML:1.8 0.00010059999999999999 0.64 AML other m 2020-05-24T20:41:16.18
IV.TOLF.HHE. ML:2.0 0.0001535 0.38 AML other m 2020-05-24T20:41:17.29
IV.ARRO.EHN. ML:2.0 0.00017749999999999998 1 AML other m 2020-05-24T20:41:17.56
IV.ATMI.HHE. ML:2.6 0.0006635 0.36 AML other m 2020-05-24T20:41:17.97
IV.ATMI.HHN. ML:2.8 0.0008895 1.24 AML other m 2020-05-24T20:41:17.18
IV.ATCC.EHE. ML:2.4 0.0003905 1.64 AML other m 2020-05-24T20:41:18.82
IV.TOLF.HHN. ML:1.9 0.000148 0.78 AML other m 2020-05-24T20:41:18.51
IV.MURB.HHE. ML:3.0 0.0014199999999999998 0.3 AML other m 2020-05-24T20:41:18.15
IV.MURB.HNE. ML:3.0 0.0014199999999999998 1.46 AML other m 2020-05-24T20:41:18.16
IV.ATCC.EHN. ML:2.5 0.0004305 0.5 AML other m 2020-05-24T20:41:18.51
IV.ARRO.EHE. ML:1.9 0.0001375 1.14 AML other m 2020-05-24T20:41:18.78
IV.ATVO.HHE. ML:2.3 0.0002565 1.6 AML other m 2020-05-24T20:41:19.02
IV.MURB.HHN. ML:3.0 0.00156 0.3 AML other m 2020-05-24T20:41:19.33
IV.MURB.HNN. ML:3.0 0.001435 0.3 AML other m 2020-05-24T20:41:19.34
IV.CASP.HHE. ML:1.8 0.00007314999999999999 0.7 AML other m 2020-05-24T20:41:20.43
IV.CASP.HHN. ML:2.0 0.00010630000000000001 1.08 AML other m 2020-05-24T20:41:20.99
IV.ATPI.EHN. ML:2.2 0.000193 0.5 AML other m 2020-05-24T20:41:22.09
IV.BADI.EHN. ML:2.2 0.0001545 1.16 AML other m 2020-05-24T20:41:22.82
IV.ATPI.EHE. ML:2.3 0.0001975 0.5 AML other m 2020-05-24T20:41:22.58
IV.ATVO.HHN. ML:2.3 0.00024249999999999999 0.48 AML other m 2020-05-24T20:41:23.21
IV.FDMO.HHN. ML:2.1 0.000124 1.1 AML other m 2020-05-24T20:41:23.16
IV.FDMO.HHE. ML:2.2 0.0001475 0.78 AML other m 2020-05-24T20:41:23.35
IV.CSNT.HHE. ML:1.5 0.000029350000000000002 0.38 AML other m 2020-05-24T20:41:24.48
IV.BADI.EHE. ML:2.2 0.00017749999999999998 1.02 AML other m 2020-05-24T20:41:24.43
IV.PIEI.HHN. ML:2.2 0.00013700000000000002 0.32 AML other m 2020-05-24T20:41:25.48
IV.PARC.HHN. ML:2.1 0.00010550000000000002 1.62 AML other m 2020-05-24T20:41:25.15
IV.CSNT.HHN. ML:1.6 0.000034949999999999996 0.84 AML other m 2020-05-24T20:41:26.74
IV.PIEI.HHE. ML:2.3 0.000189 0.32 AML other m 2020-05-24T20:41:27.29
IV.PARC.HHE. ML:2.1 0.00010835 0.78 AML other m 2020-05-24T20:41:29.10
IV.PE3.EHE. ML:2.6 0.0003055 0.5 AML other m 2020-05-24T20:41:29.00
IV.EL6.EHN. ML:2.5 0.00025 1.16 AML other m 2020-05-24T20:41:30.63
IV.EL6.EHE. ML:2.5 0.00023899999999999998 0.88 AML other m 2020-05-24T20:41:30.84
IV.PE3.EHN. ML:2.7 0.0003585 0.54 AML other m 2020-05-24T20:41:31.62
IV.MNTT.EHE. ML:2.7 0.000298 0.42 AML other m 2020-05-24T20:41:39.62
IV.MNTT.EHN. ML:2.7 0.000296 0.52 AML other m 2020-05-24T20:41:44.00
IV.CMPR.HHE. ML:2.7 0.0000315 1.04 AML other m 2020-05-24T20:42:07.91
IV.CMPR.HHN. ML:2.9 0.00004975 1.04 AML other m 2020-05-24T20:42:07.39
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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