Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 02-08-2020 and time 23:24:59 (UTC) in region 7 km W Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 7 km W Monte Cavallo (MC), on

  • 02-08-2020 23:24:59 (UTC)
  • 03-08-2020 01:24:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9860, 12.9230 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Monte Cavallo MC 7 145 145
Serravalle di Chienti MC 10 1070 1215
Sellano PG 11 1079 2294
Pieve Torina MC 12 1458 3752
Muccia MC 15 915 4667
Fiordimonte MC 15 202 4869
Visso MC 15 1107 5976
Preci PG 15 724 6700
Pievebovigliana MC 16 866 7566
Valtopina PG 16 1398 8964
Nocera Umbra PG 18 5839 14803
Foligno PG 18 57155 71958
Sefro MC 18 422 72380
Ussita MC 18 444 72824
Cerreto di Spoleto PG 18 1075 73899
Trevi PG 19 8469 82368
Fiastra MC 20 559 82927

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
52 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
96 Km S of Fano (60888 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
Reviewed
Rev100 		ML 1.2 2020-08-02
23:24:59		 42.9858 12.9227 11 2020-08-02
23:38:42		 Sala Sismica INGV-Roma 81594581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-02 23:24:59 ± 0.04
Latitude 42.9858 ± 0.0027
Longitude 12.9227 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81594581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 299
Semi-minor axis of confidence ellipse (meter) 236
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.67179
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 37
Type of magnitude ML
Reference to an origin 81594581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-02 23:38:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2020-08-02T23:25:22.24 0.3 undecidable manual S 338 74.5698 50 0.74 54
IV.PIEI.HHZ. 2020-08-02T23:25:20.12 0.3 undecidable manual S 333 68.5758 50 0.23 64
IV.FRON.EHZ. 2020-08-02T23:25:18.11 0.3 undecidable manual S 345 61.0944 50 0.22 65
IV.ARVD.HHZ. 2020-08-02T23:25:17.12 0.6 undecidable manual S 2 56.7987 50 0.36 42
IV.SSFR.HHZ. 2020-08-02T23:25:15.34 0.3 undecidable manual S 347 51.2154 50 0.09 68
IV.SMA1.EHZ. 2020-08-02T23:25:15.79 0.6 undecidable manual S 139 51.8037 50 0.38 43
IV.ARRO.EHZ. 2020-08-02T23:25:14.34 0.3 undecidable manual S 196 46.9197 50 0.24 67
IV.MF5.EHZ. 2020-08-02T23:25:13.67 0.3 undecidable manual S 90 43.623 50 0.46 64
IV.MOMA.HHZ. 2020-08-02T23:25:11.44 0.3 undecidable manual S 235 35.0427 50 0.5 64
IV.PIEI.HHZ. 2020-08-02T23:25:11.14 0.1 undecidable manual P 333 68.5758 50 0.04 89
IV.NARO.HHZ. 2020-08-02T23:25:11.92 0.6 undecidable manual P 338 74.5698 50 -0.12 43
IV.FOSV.EHZ. 2020-08-02T23:25:11.07 0.6 undecidable manual S 339 36.6411 50 -0.3 45
IV.GUMA.HHZ. 2020-08-02T23:25:11.30 0.3 undecidable manual S 76 34.5432 50 0.5 64
IV.ATCC.EHZ. 2020-08-02T23:25:10.22 0.1 undecidable manual S 314 31.8459 50 0.14 93
IV.MMO1.EHZ. 2020-08-02T23:25:10.50 0.3 undecidable manual S 106 34.2435 50 -0.21 69
IV.GAVE.HNE. 2020-08-02T23:25:10.21 0.3 undecidable manual S 184 32.6451 50 -0.09 70
IV.FRON.EHZ. 2020-08-02T23:25:09.77 0.1 undecidable manual P 345 61.0944 50 -0.18 88
IV.ARVD.HHZ. 2020-08-02T23:25:09.07 0.3 undecidable manual P 2 56.7987 50 -0.23 66
IV.SMA1.EHZ. 2020-08-02T23:25:08.46 0.3 undecidable manual P 139 51.8037 50 -0.06 69
IV.SSFR.HHZ. 2020-08-02T23:25:08.40 0.1 undecidable manual P 347 51.2154 50 -0.04 92
IV.CSP1.EHZ. 2020-08-02T23:25:08.14 0.3 undecidable manual S 63 25.752 50 -0.31 68
IV.NRCA.HHZ. 2020-08-02T23:25:07.37 0.6 undecidable manual S 137 22.9548 50 -0.35 45
IV.ARRO.EHZ. 2020-08-02T23:25:07.55 0.3 undecidable manual P 196 46.9197 50 -0.22 67
IV.ASSB.HHZ. 2020-08-02T23:25:07.27 0.1 undecidable manual S 286 22.3554 50 -0.27 92
IV.MF5.EHZ. 2020-08-02T23:25:07.55 0.6 undecidable manual P 90 43.623 50 0.29 44
IV.FOSV.EHZ. 2020-08-02T23:25:05.80 0.1 undecidable manual P 339 36.6411 50 -0.39 88
IV.GUMA.HHZ. 2020-08-02T23:25:05.96 0.1 undecidable manual P 76 34.5432 50 0.1 93
IV.FDMO.HHZ. 2020-08-02T23:25:05.13 0.3 undecidable manual S 67 14.4744 127 -0.29 70
IV.ATCC.EHZ. 2020-08-02T23:25:05.29 0.1 undecidable manual P 314 31.8459 50 -0.15 93
IV.MOMA.HHZ. 2020-08-02T23:25:05.95 0.1 undecidable manual P 235 35.0427 50 0.01 95
IV.MML1.HNE. 2020-08-02T23:25:05.31 0.3 undecidable manual S 16 14.6742 127 -0.17 72
IV.MMO1.EHZ. 2020-08-02T23:25:05.56 0.1 undecidable manual P 106 34.2435 50 -0.25 91
IV.GAVE.HNE. 2020-08-02T23:25:05.44 0.1 undecidable manual P 184 32.6451 50 -0.14 93
IV.CSP1.EHZ. 2020-08-02T23:25:04.30 0.1 undecidable manual P 63 25.752 50 -0.2 93
IV.FEMA.HNZ. 2020-08-02T23:25:04.72 0.1 undecidable manual S 104 10.6782 136 0.3 94
IV.MC2.EHZ. 2020-08-02T23:25:04.01 0.6 negative manual P 111 23.1546 50 -0.1 48
IV.CESI.HHZ. 2020-08-02T23:25:03.13 0.1 undecidable manual S 325 2.5974 167 0.1 99
IV.ASSB.HHZ. 2020-08-02T23:25:03.78 0.1 undecidable manual P 286 22.3554 50 -0.2 94
IT.MTCL.HGZ. 2020-08-02T23:25:03.50 0.1 undecidable manual S 82 6.2937 150 -0.01 100
IT.FOPC.HGE. 2020-08-02T23:25:03.31 0.1 undecidable manual P 264 17.871 50 0.01 98
IV.NRCA.HHZ. 2020-08-02T23:25:03.88 0.1 negative manual P 137 22.9548 50 -0.2 93
IV.MML1.HNE. 2020-08-02T23:25:02.71 0.1 undecidable manual P 16 14.6742 127 -0.08 97
IV.FEMA.HNZ. 2020-08-02T23:25:02.31 0.1 undecidable manual P 104 10.6782 136 0.14 97
IV.FDMO.HHZ. 2020-08-02T23:25:02.65 0.1 undecidable manual P 67 14.4744 127 -0.1 97
IV.CESI.HHZ. 2020-08-02T23:25:01.54 0.1 undecidable manual P 325 2.5974 167 0.17 97
IT.MTCL.HGZ. 2020-08-02T23:25:01.76 0.1 undecidable manual P 82 6.2937 150 0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.0 0.00003095 0.2 AML other m 2020-08-02T23:25:15.25
IV.CESI.HHE. ML:1.0 0.00015665942999999998 0.0512 AML other m 2020-08-02T23:25:03.36
IV.CESI.HHN. ML:1.1 0.00020401819999999997 0.1408 AML other m 2020-08-02T23:25:03.43
IV.CESI.HNE. ML:0.9 0.000140988228 0.064 AML other m 2020-08-02T23:25:03.35
IV.CESI.HNN. ML:1.1 0.0002107117 0.1536 AML other m 2020-08-02T23:25:03.35
IV.FDMO.HHE. ML:1.4 0.0002245742 0.0896 AML other m 2020-08-02T23:25:05.36
IV.FDMO.HHN. ML:1.5 0.00026879595 0.2304 AML other m 2020-08-02T23:25:05.36
IV.ASSB.HHE. ML:1.4 0.0001745381 0.0768 AML other m 2020-08-02T23:25:07.55
IV.ASSB.HHN. ML:1.5 0.00019615574999999998 0.064 AML other m 2020-08-02T23:25:07.54
IV.NRCA.HHE. ML:1.6 0.0002616206 0.1024 AML other m 2020-08-02T23:25:07.65
IV.NRCA.HHN. ML:1.5 0.0001824541 0.0896 AML other m 2020-08-02T23:25:07.60
IV.NRCA.HNE. ML:1.6 0.00025221484999999997 0.1024 AML other m 2020-08-02T23:25:07.65
IV.NRCA.HNN. ML:1.5 0.00017955027499999999 0.128 AML other m 2020-08-02T23:25:07.54
IV.CSP1.EHE. ML:1.3 0.00011968345 0.2304 AML other m 2020-08-02T23:25:09.05
IV.CSP1.EHN. ML:1.5 0.00017790375 0.192 AML other m 2020-08-02T23:25:08.38
IV.ATCC.EHE. ML:1.2 0.00007666461 0.1152 AML other m 2020-08-02T23:25:11.11
IV.ATCC.EHN. ML:1.0 0.000052168829999999996 0.1152 AML other m 2020-08-02T23:25:10.43
IV.FOSV.EHE. ML:0.8 0.000022930155 0.2432 AML other m 2020-08-02T23:25:11.62
IV.FOSV.EHN. ML:0.8 0.000025171425 0.32 AML other m 2020-08-02T23:25:13.70
IV.MOMA.HHE. ML:1.3 0.000078086085 0.1664 AML other m 2020-08-02T23:25:12.12
IV.MOMA.HHN. ML:1.2 0.00007210725 0.1792 AML other m 2020-08-02T23:25:11.91
IV.GUMA.HHE. ML:1.9 0.00029615835 0.1664 AML other m 2020-08-02T23:25:11.40
IV.GUMA.HHN. ML:1.4 0.00009667231 0.2432 AML other m 2020-08-02T23:25:11.56
IV.GUMA.HNE. ML:1.8 0.00025578665 0.1536 AML other m 2020-08-02T23:25:11.48
IV.MF5.EHN. ML:0.9 0.000023111845000000004 0.1152 AML other m 2020-08-02T23:25:14.57
IV.ARRO.EHN. ML:0.7 0.00001588932 0.192 AML other m 2020-08-02T23:25:15.31
IV.SSFR.HHE. ML:1.2 0.000045776535 0.1792 AML other m 2020-08-02T23:25:17.31
IV.SSFR.HHN. ML:1.2 0.00004419836 0.1536 AML other m 2020-08-02T23:25:17.59
IV.SMA1.EHE. ML:0.8 0.000016844850000000002 0.2816 AML other m 2020-08-02T23:25:17.36
IV.SMA1.EHN. ML:0.9 0.0000196408965 0.2816 AML other m 2020-08-02T23:25:19.48
IV.ARVD.HHE. ML:1.2 0.000033413214999999995 0.1408 AML other m 2020-08-02T23:25:17.36
IV.ARVD.HHN. ML:0.8 0.000017437182000000004 0.1536 AML other m 2020-08-02T23:25:17.84
IV.FRON.EHE. ML:0.7 0.0000108387025 0.1664 AML other m 2020-08-02T23:25:20.01
IV.FRON.EHN. ML:1.0 0.00001932375 0.1664 AML other m 2020-08-02T23:25:18.47
IV.PIEI.HHE. ML:0.8 0.000011009304 0.1152 AML other m 2020-08-02T23:25:20.90
IV.PIEI.HHN. ML:0.8 0.000008289525 0.1536 AML other m 2020-08-02T23:25:20.74
IV.NARO.HHN. ML:0.5 0.0000048744 0.0768 AML other m 2020-08-02T23:25:26.78
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