Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 15-05-2020 and time 23:10:28 (Italy) in region 4 km SW Castel Giorgio (TR)

A magnitude ML 2.3 earthquake occured in region: 4 km SW Castel Giorgio (TR), on

  • 15-05-2020 21:10:28 (UTC)
  • 15-05-2020 23:10:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6790, 11.9560 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
Gradoli VT 9 1353 12249
Castel Viscardo TR 10 2938 15187
Acquapendente VT 10 5506 20693
Onano VT 12 995 21688
Latera VT 12 836 22524
Porano TR 12 1966 24490
Bagnoregio VT 13 3650 28140
Lubriano VT 13 909 29049
Orvieto TR 13 20630 49679
Proceno VT 13 557 50236
Capodimonte VT 15 1731 51967
Allerona TR 15 1794 53761
Marta VT 16 3499 57260
Valentano VT 16 2868 60128
Montefiascone VT 17 13432 73560
Celleno VT 19 1355 74915
Sorano GR 20 3428 78343
Ficulle TR 20 1669 80012

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)
69 Km W of Foligno (57155 inhabitants)
69 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 2020-05-15
21:10:28		 42.6788 11.9555 11 2020-11-19
12:36:58		 Bollettino Sismico Italiano INGV 82240181
Reviewed
Rev100 		ML 2.3 2020-05-15
21:10:28		 42.6782 11.944 10 2020-05-15
21:23:57		 Sala Sismica INGV-Roma 79175461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-15 21:10:28 ± 0.1
Latitude 42.6788 ± 0.0045
Longitude 11.9555 ± 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 82240181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 475
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.12860
Epicentral distance of station farthest from the epicenter (degree) 1.08998
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 59
Type of magnitude ML
Reference to an origin 79175461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-15 21:23:57

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 58
Type of magnitude ML
Reference to an origin 82240181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-22 14:59:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATMI.HHZ. 2020-05-15T21:10:52.06 0.6 undecidable manual S 19 76.9674 50 0.57 39
IV.SRES.HHZ. 2020-05-15T21:10:49.11 0.6 undecidable manual S 137 66.7776 50 0.34 43
IV.ATTE.HHZ. 2020-05-15T21:10:49.33 1.0 undecidable manual S 29 66.0894 50 0.76 19
IV.PE3.EHZ. 2020-05-15T21:10:49.18 0.6 undecidable manual P 21 120.99 50 0.67 35
IV.TOLF.HHZ. 2020-05-15T21:10:49.13 1.0 undecidable manual S 177 68.2761 50 -0.04 23
IV.SMA1.EHZ. 2020-05-15T21:10:47.25 0.6 undecidable manual P 92 112.6983 50 0.02 42
IV.MMO1.EHZ. 2020-05-15T21:10:47.26 0.6 undecidable manual P 77 114.2967 50 -0.21 40
IV.CSP1.EHZ. 2020-05-15T21:10:47.23 0.6 undecidable manual P 65 111.3996 50 0.2 40
IV.RM33.EHZ. 2020-05-15T21:10:46.11 0.6 undecidable manual P 100 104.5176 50 0.14 41
IV.TRIF.CHZ. 2020-05-15T21:10:46.24 0.1 positive manual P 300 98.3238 50 1.24 56
IV.PIEI.HHZ. 2020-05-15T21:10:46.72 0.3 undecidable manual P 26 106.0161 50 0.52 57
IV.ATSC.EHE. 2020-05-15T21:10:45.49 0.6 undecidable manual P 35 101.7204 50 -0.04 42
IV.MOMA.HHZ. 2020-05-15T21:10:44.51 0.6 undecidable manual S 74 52.0035 50 -0.31 44
IV.ATPI.EHZ. 2020-05-15T21:10:44.40 0.3 undecidable manual P 23 92.9403 50 0.21 63
IV.ATFO.HHN. 2020-05-15T21:10:44.63 0.3 undecidable manual P 33 91.242 50 0.72 54
IV.MTCE.HHZ. 2020-05-15T21:10:44.38 0.6 undecidable manual P 138 97.2249 50 -0.46 39
IV.CASP.HHE. 2020-05-15T21:10:44.91 0.1 positive manual P 278 89.7435 50 1.23 57
IV.ARCI.HHZ. 2020-05-15T21:10:43.11 0.6 undecidable manual S 296 43.5231 50 0.54 42
IV.CESI.HHZ. 2020-05-15T21:10:43.14 0.3 undecidable manual P 65 85.248 50 0.14 64
IV.RIBO.EHZ. 2020-05-15T21:10:43.33 0.6 undecidable manual P 292 79.7646 50 1.17 30
IV.BARO.EHZ. 2020-05-15T21:10:43.90 0.3 undecidable manual S 171 48.4182 50 0.03 71
IV.ATVO.HHZ. 2020-05-15T21:10:43.30 0.3 undecidable manual P 25 86.1471 50 0.16 64
IV.TB03.DHZ.01 2020-05-15T21:10:43.78 0.1 negative manual P 25 88.245 50 0.33 82
IV.ATLO.EHE. 2020-05-15T21:10:42.24 0.3 undecidable manual P 27 79.5648 50 0.13 65
IV.MURB.HHZ. 2020-05-15T21:10:42.18 0.3 undecidable manual P 35 79.5648 50 0.06 66
IV.ATCC.EHE. 2020-05-15T21:10:41.92 0.3 undecidable manual P 44 79.0653 50 -0.12 66
IV.ATMI.HHZ. 2020-05-15T21:10:41.82 0.3 undecidable manual P 19 76.9674 50 0.1 66
IV.MAON.HHZ. 2020-05-15T21:10:41.74 0.3 undecidable manual P 248 72.8715 50 0.65 58
IV.ARRO.EHZ. 2020-05-15T21:10:40.32 0.3 undecidable manual P 99 67.0773 50 0.13 67
IV.ASSB.HHZ. 2020-05-15T21:10:40.50 0.3 undecidable manual P 55 69.9744 50 -0.14 66
IV.SRES.HHZ. 2020-05-15T21:10:40.44 0.6 undecidable manual P 137 66.7776 50 0.28 43
TV.SF01.EHZ. 2020-05-15T21:10:40.32 0.6 undecidable manual S 295 35.2425 50 -0.02 48
IV.ATTE.HHZ. 2020-05-15T21:10:40.13 0.3 undecidable manual P 29 66.0894 50 0.1 68
TV.SF11.HHZ. 2020-05-15T21:10:39.10 0.6 undecidable manual S 313 30.8469 50 -0.07 48
IV.TOLF.HHZ. 2020-05-15T21:10:39.75 0.3 undecidable manual P 177 68.2761 50 -0.63 59
TV.SF13.HHN. 2020-05-15T21:10:39.07 0.6 undecidable manual S 300 31.4463 50 -0.27 46
IV.MGAB.HHZ. 2020-05-15T21:10:38.50 0.3 undecidable manual S 26 28.9488 50 -0.16 71
TV.SF04.EHZ. 2020-05-15T21:10:38.28 0.6 undecidable manual S 306 29.6481 50 -0.58 43
TV.SF14.HHN. 2020-05-15T21:10:38.52 0.6 undecidable manual S 287 29.0487 50 -0.17 47
TV.SF03.EHN. 2020-05-15T21:10:37.34 0.6 undecidable manual S 302 25.9518 50 -0.52 44
IV.CESX.HHZ. 2020-05-15T21:10:37.77 0.6 undecidable manual P 98 52.1034 50 -0.11 46
IV.MCIV.CHZ. 2020-05-15T21:10:37.49 0.6 undecidable manual S 296 25.2525 50 -0.2 47
IV.MOMA.HHZ. 2020-05-15T21:10:37.32 0.1 undecidable manual P 74 52.0035 50 -0.55 83
IV.ARCI.HHZ. 2020-05-15T21:10:36.45 0.3 undecidable manual P 296 43.5231 50 -0.12 70
IV.BARO.EHZ. 2020-05-15T21:10:36.92 0.1 positive manual P 171 48.4182 50 -0.4 87
TV.SF01.EHZ. 2020-05-15T21:10:35.18 0.1 positive manual P 295 35.2425 50 -0.1 95
IV.SACS.HHZ. 2020-05-15T21:10:35.79 0.3 undecidable manual S 349 19.2696 119 -0.21 72
TV.SF13.HHN. 2020-05-15T21:10:34.48 0.1 positive manual P 300 31.4463 50 -0.23 93
TV.SF11.HHZ. 2020-05-15T21:10:34.43 0.1 positive manual P 313 30.8469 50 -0.18 94
TV.SF04.EHZ. 2020-05-15T21:10:34.16 0.1 positive manual P 306 29.6481 50 -0.27 93
IV.LATE.HHZ. 2020-05-15T21:10:34.96 0.3 undecidable manual S 240 14.2746 126 0.41 69
TV.SF14.HHN. 2020-05-15T21:10:34.06 0.1 positive manual P 287 29.0487 50 -0.27 93
IV.MGAB.HHZ. 2020-05-15T21:10:33.75 0.1 positive manual P 26 28.9488 50 -0.56 86
TV.SF03.EHN. 2020-05-15T21:10:33.61 0.1 positive manual P 302 25.9518 50 -0.25 94
IV.MCIV.CHZ. 2020-05-15T21:10:33.56 0.1 undecidable manual P 296 25.2525 50 -0.19 95
IV.SACS.HHZ. 2020-05-15T21:10:32.44 0.1 positive manual P 349 19.2696 119 -0.34 93
IV.LATE.HHZ. 2020-05-15T21:10:31.91 0.1 positive manual P 240 14.2746 126 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:2.7 0.0035499999999999998 1.06 AML other m 2020-05-15T21:10:35.95
IV.SACS.HNN. ML:2.6 0.0034300000000000003 1.62 AML other m 2020-05-15T21:10:35.95
IV.SACS.HHE. ML:2.6 0.0033049999999999998 0.62 AML other m 2020-05-15T21:10:36.42
IV.SACS.HNE. ML:2.6 0.003415 0.36 AML other m 2020-05-15T21:10:36.42
IV.MCIV.CHE. ML:2.1 0.0008465 0.3 AML other m 2020-05-15T21:10:38.45
IV.MCIV.CHN. ML:1.9 0.0004532604 0.576 AML other m 2020-05-15T21:10:38.62
IV.MGAB.HHE. ML:2.6 0.0019100000000000002 0.78 AML other m 2020-05-15T21:10:39.11
IV.MGAB.HNE. ML:2.6 0.0022350000000000004 0.76 AML other m 2020-05-15T21:10:39.12
TV.SF04.EHE. ML:2.4 0.00128 0.18 AML other m 2020-05-15T21:10:39.23
IV.LATE.HHN. ML:2.7 0.00534 0.56 AML other m 2020-05-15T21:10:39.63
IV.MGAB.HNN. ML:2.6 0.001825 0.72 AML other m 2020-05-15T21:10:39.51
IV.MGAB.HHN. ML:2.7 0.002385 0.72 AML other m 2020-05-15T21:10:39.51
TV.SF04.EHN. ML:2.5 0.0014750000000000002 0.94 AML other m 2020-05-15T21:10:39.22
IV.LATE.HHE. ML:2.5 0.0031450000000000002 0.32 AML other m 2020-05-15T21:10:39.93
TV.SF01.EHN. ML:2.2 0.00065 0.24 AML other m 2020-05-15T21:10:41.97
TV.SF01.EHE. ML:2.4 0.0010355000000000002 0.5 AML other m 2020-05-15T21:10:44.59
IV.ARCI.HHN. ML:1.8 0.000185 0.92 AML other m 2020-05-15T21:10:44.49
IV.ARCI.HHE. ML:1.9 0.00022950000000000002 1.46 AML other m 2020-05-15T21:10:45.77
IV.CESX.HHE. ML:1.9 0.0001915 0.32 AML other m 2020-05-15T21:10:48.69
IV.MOMA.HHE. ML:2.1 0.0003285 1.76 AML other m 2020-05-15T21:10:48.01
IV.ATTE.HHE. ML:2.3 0.0003815 0.44 AML other m 2020-05-15T21:10:51.58
IV.ATTE.HHN. ML:2.4 0.0004335 1.12 AML other m 2020-05-15T21:10:51.40
IV.MOMA.HHN. ML:2.0 0.000275 0.46 AML other m 2020-05-15T21:10:52.49
IV.SRES.HHN. ML:1.9 0.00014099999999999998 1.58 AML other m 2020-05-15T21:10:52.11
IV.SRES.HHE. ML:1.8 0.00012163965 0.3328 AML other m 2020-05-15T21:10:53.12
IV.ARRO.EHN. ML:2.0 0.0001870561 0.64 AML other m 2020-05-15T21:10:53.67
IV.CESX.HHN. ML:2.0 0.000236 0.32 AML other m 2020-05-15T21:10:53.81
IV.TOLF.HHE. ML:2.0 0.0001575 1.56 AML other m 2020-05-15T21:10:53.93
IV.ARRO.EHE. ML:2.0 0.00017549999999999998 0.78 AML other m 2020-05-15T21:10:54.46
IV.ASSB.HHE. ML:2.0 0.00016849999999999998 0.28 AML other m 2020-05-15T21:10:54.21
IV.TOLF.HHN. ML:1.9 0.0001495 0.58 AML other m 2020-05-15T21:10:54.26
IV.ASSB.HHN. ML:1.9 0.0001374155 0.9216 AML other m 2020-05-15T21:10:54.54
IV.ATMI.HHE. ML:2.6 0.000694 1.56 AML other m 2020-05-15T21:10:55.93
IV.ATMI.HHN. ML:2.8 0.0009375 0.28 AML other m 2020-05-15T21:10:56.32
IV.CESI.HHE. ML:2.1 0.0001535 0.92 AML other m 2020-05-15T21:10:57.19
IV.MURB.HNE. ML:2.9 0.001145 1.02 AML other m 2020-05-15T21:10:57.72
IV.ATVO.HHE. ML:2.3 0.000263 0.42 AML other m 2020-05-15T21:10:57.21
IV.MURB.HHE. ML:2.9 0.0010249999999999999 0.98 AML other m 2020-05-15T21:10:57.71
IV.MURB.HHN. ML:3.0 0.0012549999999999998 0.3 AML other m 2020-05-15T21:10:57.34
IV.MURB.HNN. ML:2.9 0.001095 0.3 AML other m 2020-05-15T21:10:57.19
IV.CESI.HHN. ML:2.0 0.00013800000000000002 0.44 AML other m 2020-05-15T21:10:58.24
IV.ATPI.EHE. ML:2.3 0.00021349999999999999 0.34 AML other m 2020-05-15T21:10:59.29
IV.MTCE.HHE. ML:2.0 0.00010630392499999999 1.3056 AML other m 2020-05-15T21:11:00.28
IV.MTCE.HHN. ML:1.9 0.00008365 0.98 AML other m 2020-05-15T21:11:00.28
IV.ATVO.HHN. ML:2.3 0.0002655 0.72 AML other m 2020-05-15T21:11:01.41
IV.ATPI.EHN. ML:2.3 0.00020850000000000003 0.6 AML other m 2020-05-15T21:11:02.65
IV.SSFR.HHN. ML:2.4 0.00020250000000000002 1.28 AML other m 2020-05-15T21:11:03.28
IV.SSFR.HNN. ML:2.5 0.0002845 1.24 AML other m 2020-05-15T21:11:03.29
IV.PIEI.HHN. ML:2.0 0.0000864 0.54 AML other m 2020-05-15T21:11:03.89
IV.PIEI.HHE. ML:2.2 0.0001505 0.38 AML other m 2020-05-15T21:11:04.05
IV.SSFR.HHE. ML:2.4 0.000214 1.76 AML other m 2020-05-15T21:11:04.04
IV.RM33.EHN. ML:2.2 0.0001285 1.12 AML other m 2020-05-15T21:11:06.26
IV.SMA1.EHE. ML:2.4 0.0002045 0.38 AML other m 2020-05-15T21:11:06.64
IV.SMA1.EHN. ML:2.3 0.0001805 0.42 AML other m 2020-05-15T21:11:06.59
IV.CSP1.EHE. ML:2.2 0.0001365 1.28 AML other m 2020-05-15T21:11:06.30
IV.RM33.EHE. ML:2.1 0.000125 0.64 AML other m 2020-05-15T21:11:08.47
IV.PE3.EHE. ML:2.7 0.000348 0.56 AML other m 2020-05-15T21:11:09.95
IV.PE3.EHN. ML:2.7 0.00033850000000000004 0.86 AML other m 2020-05-15T21:11:13.44
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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