Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 24-05-2020 and time 10:41:50 (UTC) in region 3 km SW Castel Giorgio (TR)

A magnitude ML 2.4 earthquake occured in region: 3 km SW Castel Giorgio (TR), on

  • 24-05-2020 10:41:50 (UTC)
  • 24-05-2020 12:41:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6880, 11.9590 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 3 2131 2131
San Lorenzo Nuovo VT 4 2091 4222
Bolsena VT 5 3991 8213
Grotte di Castro VT 7 2683 10896
Castel Viscardo TR 8 2938 13834
Gradoli VT 10 1353 15187
Acquapendente VT 10 5506 20693
Onano VT 12 995 21688
Porano TR 12 1966 23654
Latera VT 13 836 24490
Orvieto TR 13 20630 45120
Proceno VT 13 557 45677
Bagnoregio VT 13 3650 49327
Lubriano VT 14 909 50236
Allerona TR 14 1794 52030
Capodimonte VT 16 1731 53761
Marta VT 17 3499 57260
Valentano VT 17 2868 60128
Montefiascone VT 18 13432 73560
Ficulle TR 19 1669 75229
Celleno VT 20 1355 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)
58 Km SW of Perugia (166134 inhabitants)
68 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)
87 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 2.4 2020-05-24
10:41:50		 42.6883 11.9593 11 2020-11-19
12:37:03		 Bollettino Sismico Italiano INGV 83581841
Reviewed
Rev100 		ML 2.3 2020-05-24
10:41:50		 42.6875 11.9603 10 2020-05-24
11:14:01		 Sala Sismica INGV-Roma 79512561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-24 10:41:50 ± 0.1
Latitude 42.6883 ± 0.0054
Longitude 11.9593 ± 0.0061
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 83581841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 412
Semi-minor axis of confidence ellipse (meter) 378
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 40
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) 0.98116
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 79512561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-24 11:14:01

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 51
Type of magnitude ML
Reference to an origin 83581841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-23 15:17:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.PANI.EHZ. 2020-05-24T10:43:34.55 3.0 undecidable manual Sg 10.05 0
IV.ZONE.HHZ. 2020-05-24T10:43:23.99 3.0 undecidable manual Sn 0.36 0
IV.AGLI.HHZ. 2020-05-24T10:43:09.59 3.0 undecidable manual Sn 4.12 0
IV.VARE.HHZ. 2020-05-24T10:43:03.16 3.0 undecidable manual P 1.223 0
IV.ROSPO.HHZ. 2020-05-24T10:42:55.69 3.0 undecidable manual Sn 0.1 0
IV.CMPR.HHZ. 2020-05-24T10:42:45.93 3.0 undecidable manual P 1.38 0
IV.PARC.HHZ. 2020-05-24T10:42:09.05 0.3 undecidable manual P 12 108.9132 50 0.55 56
IV.FDMO.HHZ. 2020-05-24T10:42:07.82 0.6 undecidable manual P 67 99.5226 50 0.77 35
IV.MOMA.HHZ. 2020-05-24T10:42:07.19 0.6 undecidable manual S 75 51.4152 50 0.69 40
IV.PIEI.HHZ. 2020-05-24T10:42:07.87 0.3 undecidable manual P 26 104.9172 50 -0.01 64
IV.CASP.HHZ. 2020-05-24T10:42:06.88 0.3 undecidable manual P 278 89.8434 50 1.31 41
IV.ATPI.EHZ. 2020-05-24T10:42:05.92 0.6 undecidable manual P 23 91.8414 50 0.05 44
IV.ATFO.HHZ. 2020-05-24T10:42:05.65 0.3 undecidable manual P 33 90.1431 50 0.04 66
IV.BARO.EHZ. 2020-05-24T10:42:05.65 0.6 undecidable manual S 171 49.4172 50 -0.33 45
IV.RIBO.EHZ. 2020-05-24T10:42:05.27 0.6 undecidable manual P 292 79.6647 50 1.27 29
IV.ATVO.HHZ. 2020-05-24T10:42:04.70 0.3 undecidable manual P 25 85.0482 50 -0.13 65
IV.MAON.HHZ. 2020-05-24T10:42:03.95 0.3 undecidable manual P 247 73.5708 50 0.89 52
IV.MURB.HHZ. 2020-05-24T10:42:03.73 0.3 undecidable manual P 36 78.5658 50 -0.09 67
IV.SRES.HHN. 2020-05-24T10:42:02.90 0.6 undecidable manual P 138 67.377 50 0.8 37
TV.SF01.EHZ. 2020-05-24T10:42:02.30 0.3 undecidable manual S 293 35.0427 50 0.16 71
IV.ARRO.EHZ. 2020-05-24T10:42:02.20 0.6 undecidable manual P 100 66.8775 50 0.17 45
IV.ATTE.HHZ. 2020-05-24T10:42:01.81 0.3 undecidable manual P 29 64.9905 50 0.08 68
TV.SF13.HHE. 2020-05-24T10:42:01.02 0.3 undecidable manual S 298 31.2465 50 -0.1 72
IV.TOLF.HHN. 2020-05-24T10:42:01.69 0.3 undecidable manual P 177 69.375 50 -0.71 57
IV.MGAB.HHZ. 2020-05-24T10:42:00.10 0.6 undecidable manual S 27 27.8499 50 -0.11 48
TV.SF14.HHE. 2020-05-24T10:42:00.50 0.6 undecidable manual S 285 29.0487 50 -0.04 49
TV.SF11.HHE. 2020-05-24T10:42:00.70 0.3 undecidable manual S 311 30.3474 50 -0.19 71
TV.SF04.EHZ. 2020-05-24T10:42:00.40 0.3 undecidable manual S 304 29.3484 50 -0.21 71
IV.MOMA.HHZ. 2020-05-24T10:41:59.22 0.3 undecidable manual P 75 51.4152 50 -0.41 65
IV.MCIV.CHZ. 2020-05-24T10:41:59.34 0.6 undecidable manual S 294 25.1526 50 -0.15 48
TV.SF03.EHZ. 2020-05-24T10:41:59.50 0.6 undecidable manual S 300 25.6521 50 -0.13 48
IV.CESX.HHZ. 2020-05-24T10:41:59.82 0.6 undecidable manual P 100 51.9036 50 0.1 47
IV.ARCI.HHZ. 2020-05-24T10:41:58.63 0.3 undecidable manual P 295 43.4232 50 0.23 69
IV.BARO.EHZ. 2020-05-24T10:41:58.88 0.1 positive manual P 171 49.4172 50 -0.45 87
TV.SF01.EHZ. 2020-05-24T10:41:57.16 0.3 undecidable manual P 293 35.0427 50 0.04 73
IV.SACS.HNZ. 2020-05-24T10:41:57.61 0.3 undecidable manual S 347 18.2706 120 0 76
IV.LATE.HHZ. 2020-05-24T10:41:56.80 0.3 undecidable manual S 237 15.1737 125 0.1 74
TV.SF14.HHE. 2020-05-24T10:41:56.02 0.1 undecidable manual P 285 29.0487 50 -0.17 95
TV.SF11.HHE. 2020-05-24T10:41:56.27 0.1 undecidable manual P 311 30.3474 50 -0.12 96
TV.SF13.HHE. 2020-05-24T10:41:56.48 0.1 negative manual P 298 31.2465 50 -0.05 98
TV.SF04.EHZ. 2020-05-24T10:41:56.16 0.1 undecidable manual P 304 29.3484 50 -0.07 97
IV.MCIV.CHZ. 2020-05-24T10:41:55.48 0.1 undecidable manual P 294 25.1526 50 -0.11 97
IV.MGAB.HHZ. 2020-05-24T10:41:55.52 0.1 positive manual P 27 27.8499 50 -0.48 90
TV.SF03.EHZ. 2020-05-24T10:41:55.60 0.3 undecidable manual P 300 25.6521 50 -0.07 74
IV.SACS.HNZ. 2020-05-24T10:41:54.32 0.1 positive manual P 347 18.2706 120 -0.18 97
IV.LATE.HHZ. 2020-05-24T10:41:53.91 0.1 positive manual P 237 15.1737 125 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHE. ML:2.7 0.003909999999999999 1.8 AML other m 2020-05-24T10:41:57.99
IV.SACS.HNE. ML:2.7 0.003915 1.8 AML other m 2020-05-24T10:41:57.09
IV.SACS.HNN. ML:2.6 0.00321 0.66 AML other m 2020-05-24T10:41:58.41
IV.LATE.HHE. ML:2.7 0.00421 0.96 AML other m 2020-05-24T10:41:58.98
IV.LATE.HHN. ML:2.8 0.006449999999999999 1.14 AML other m 2020-05-24T10:41:59.00
IV.MCIV.CHN. ML:2.0 0.0006475 0.14 AML other m 2020-05-24T10:42:00.77
TV.SF04.EHN. ML:2.6 0.0017549999999999998 0.16 AML other m 2020-05-24T10:42:01.71
TV.SF04.EHE. ML:2.4 0.0012850000000000001 0.2 AML other m 2020-05-24T10:42:01.61
IV.MGAB.HHE. ML:2.5 0.0015049999999999998 0.3 AML other m 2020-05-24T10:42:01.96
IV.MCIV.CHE. ML:2.2 0.0010165 0.32 AML other m 2020-05-24T10:42:03.04
IV.MGAB.HNE. ML:2.4 0.0013599999999999999 1.58 AML other m 2020-05-24T10:42:03.14
IV.MGAB.HHN. ML:2.4 0.0014399999999999999 0.46 AML other m 2020-05-24T10:42:04.65
IV.MGAB.HNN. ML:2.4 0.0012749999999999999 0.46 AML other m 2020-05-24T10:42:04.65
TV.SF01.EHN. ML:2.4 0.000998 0.26 AML other m 2020-05-24T10:42:04.80
TV.SF01.EHE. ML:2.3 0.0008365 1.02 AML other m 2020-05-24T10:42:05.22
IV.ARCI.HHN. ML:1.8 0.00021 0.24 AML other m 2020-05-24T10:42:06.77
IV.ARCI.HHE. ML:1.8 0.00020950000000000002 0.16 AML other m 2020-05-24T10:42:06.96
IV.BARO.HNN. ML:2.4 0.0006360000000000001 0.4 AML other m 2020-05-24T10:42:07.48
IV.BARO.EHN. ML:2.3 0.000501 0.42 AML other m 2020-05-24T10:42:07.48
IV.BARO.EHE. ML:2.3 0.000482 0.3 AML other m 2020-05-24T10:42:07.77
IV.BARO.HNE. ML:2.3 0.0004945 0.3 AML other m 2020-05-24T10:42:07.77
IV.MOMA.HHE. ML:2.3 0.000575 0.74 AML other m 2020-05-24T10:42:07.97
IV.MOMA.HNE. ML:2.3 0.0005650000000000001 0.74 AML other m 2020-05-24T10:42:07.97
IV.CASP.HHE. ML:1.8 0.00006634999999999999 1.1 AML other m 2020-05-24T10:42:09.36
IV.MOMA.HHN. ML:2.3 0.0005425 0.22 AML other m 2020-05-24T10:42:10.42
IV.MOMA.HNN. ML:2.3 0.0005254999999999999 0.2 AML other m 2020-05-24T10:42:10.42
IV.CESX.HHN. ML:1.9 0.0001905 0.26 AML other m 2020-05-24T10:42:12.67
IV.CESX.HHE. ML:2.0 0.0002515 0.44 AML other m 2020-05-24T10:42:14.08
IV.ATTE.HHN. ML:2.4 0.0004305 1.22 AML other m 2020-05-24T10:42:14.87
IV.ATTE.HHE. ML:2.3 0.000382 1.12 AML other m 2020-05-24T10:42:14.64
IV.MURB.HHE. ML:3.1 0.0017349999999999998 0.54 AML other m 2020-05-24T10:42:17.99
IV.MURB.HNE. ML:3.1 0.0017850000000000001 1.44 AML other m 2020-05-24T10:42:18.00
IV.ATVO.HHE. ML:2.4 0.00028849999999999997 0.44 AML other m 2020-05-24T10:42:18.85
IV.ATPI.HNE. ML:2.3 0.000232 0.56 AML other m 2020-05-24T10:42:20.19
IV.ATFO.HHN. ML:2.5 0.00039200000000000004 0.44 AML other m 2020-05-24T10:42:20.69
IV.CASP.HHN. ML:2.0 0.000129 1.1 AML other m 2020-05-24T10:42:20.81
IV.ATPI.EHE. ML:2.3 0.00021950000000000002 1.54 AML other m 2020-05-24T10:42:20.19
IV.MURB.HHN. ML:3.1 0.001885 0.48 AML other m 2020-05-24T10:42:21.14
IV.MURB.HNN. ML:3.1 0.00172 0.48 AML other m 2020-05-24T10:42:21.38
IV.ATFO.HHE. ML:2.4 0.0003075 0.86 AML other m 2020-05-24T10:42:21.28
IV.ATPI.HNN. ML:2.4 0.00026450000000000003 1.52 AML other m 2020-05-24T10:42:21.95
IV.ATPI.EHN. ML:2.3 0.000221 1.5 AML other m 2020-05-24T10:42:21.95
IV.ATVO.HHN. ML:2.4 0.00027800000000000004 0.46 AML other m 2020-05-24T10:42:23.06
IV.FDMO.HHE. ML:2.2 0.000164 0.8 AML other m 2020-05-24T10:42:23.18
IV.FDMO.HHN. ML:2.1 0.00013550000000000001 1.44 AML other m 2020-05-24T10:42:23.00
IV.PIEI.HHN. ML:2.2 0.00016299999999999998 0.3 AML other m 2020-05-24T10:42:25.32
IV.PARC.HHN. ML:2.2 0.0001245 0.38 AML other m 2020-05-24T10:42:25.99
IV.PIEI.HHE. ML:2.4 0.000222 0.32 AML other m 2020-05-24T10:42:27.13
IV.PARC.HHE. ML:2.2 0.00013350000000000002 0.88 AML other m 2020-05-24T10:42:27.80
IV.PE3.EHE. ML:2.7 0.00035099999999999997 1.48 AML other m 2020-05-24T10:42:29.10
IV.PE3.EHN. ML:2.8 0.0004375 0.54 AML other m 2020-05-24T10:42:31.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download