Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 20-07-2020 and time 08:40:19 (UTC) in region 1 km W Pieve Santo Stefano (AR)

A magnitude ML 1.9 earthquake occured in region: 1 km W Pieve Santo Stefano (AR), on

  • 20-07-2020 08:40:19 (UTC)
  • 20-07-2020 10:40:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6740, 12.0280 at 8 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
Pieve Santo Stefano AR 1 3183 3183
Caprese Michelangelo AR 5 1426 4609
Chiusi della Verna AR 8 2023 6632
Chitignano AR 12 899 7531
Badia Tedalda AR 13 1087 8618
Verghereto FC 14 1907 10525
Sansepolcro AR 15 15884 26409
Anghiari AR 15 5638 32047
Castel Focognano AR 16 3149 35196
Casteldelci RN 17 407 35603
Subbiano AR 17 6331 41934
Bibbiena AR 17 12241 54175
Capolona AR 18 5438 59613
San Giustino PG 18 11297 70910

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Arezzo (99543 inhabitants)
54 Km SW of Cesena (96758 inhabitants)
61 Km SW of Rimini (147750 inhabitants)
61 Km S of Forlì (117913 inhabitants)
63 Km E of Firenze (382808 inhabitants)
69 Km E of Scandicci (50609 inhabitants)
69 Km NE of Siena (53903 inhabitants)
69 Km S of Faenza (58541 inhabitants)
69 Km NW of Perugia (166134 inhabitants)
76 Km W of Pesaro (94582 inhabitants)
78 Km E of Prato (191150 inhabitants)
80 Km SE of Imola (69797 inhabitants)
82 Km W of Fano (60888 inhabitants)
84 Km S of Ravenna (159116 inhabitants)
94 Km E of Pistoia (90315 inhabitants)
97 Km NW of Foligno (57155 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 1.9 2020-07-20
08:40:19		 43.6745 12.0283 8 2020-11-19
12:37:05		 Bollettino Sismico Italiano INGV 83989171
Reviewed
Rev100 		ML 2.0 2020-07-20
08:40:19		 43.6662 12.0177 9 2020-07-20
08:51:54		 Sala Sismica INGV-Roma 81184061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-20 08:40:19 ± 0.06
Latitude 43.6745 ± 0.0045
Longitude 12.0283 ± 0.0050
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83989171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 533
Semi-minor axis of confidence ellipse (meter) 67
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 62
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) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 1.13764
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 70
Type of magnitude ML
Reference to an origin 83989171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-21 13:01:46

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 74
Type of magnitude ML
Reference to an origin 81184061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-20 08:51:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2020-07-20T08:40:46.07 0.3 undecidable manual S 175 84.7485 50 0.85 53
IV.MPPT.EHZ. 2020-07-20T08:40:45.20 0.3 undecidable manual S 293 81.3519 50 0.88 52
IV.ATCC.EHZ. 2020-07-20T08:40:42.91 1.0 undecidable manual S 138 73.2711 50 0.75 19
IV.SEI.HHZ. 2020-07-20T08:40:41.37 0.3 undecidable manual S 308 68.1762 50 0.58 60
IV.SSFR.HHZ. 2020-07-20T08:40:40.46 0.3 undecidable manual S 113 66.0894 50 0.22 67
IV.MC2.EHZ. 2020-07-20T08:40:40.61 0.6 undecidable manual P 132 126.2736 50 -0.14 40
IV.MURB.HHZ. 2020-07-20T08:40:39.13 0.3 undecidable manual S 139 60.6948 50 0.34 66
IV.RONT.HHZ. 2020-07-20T08:40:39.01 0.6 undecidable manual S 307 59.3961 50 0.57 41
IV.CSNT.HHE. 2020-07-20T08:40:39.56 0.6 undecidable manual S 250 63.3921 50 0.05 46
IV.MOMA.HHZ. 2020-07-20T08:40:38.22 0.3 undecidable manual P 155 106.0161 50 0.59 56
IV.FRON.EHZ. 2020-07-20T08:40:38.74 0.3 undecidable manual S 107 58.6968 50 0.49 64
IV.MPAG.EHZ. 2020-07-20T08:40:38.71 0.3 undecidable manual S 95 58.8966 50 0.4 65
IV.ATFO.HHZ. 2020-07-20T08:40:37.68 0.3 undecidable manual S 128 55.5 50 0.28 67
IV.LMD.HHZ. 2020-07-20T08:40:36.34 0.3 undecidable manual S 330 51.5151 50 -0.01 71
IV.MGAB.HHZ. 2020-07-20T08:40:34.83 0.3 undecidable manual P 175 84.7485 50 0.47 61
IV.ATVO.HHZ. 2020-07-20T08:40:34.18 0.3 undecidable manual S 137 44.5221 50 -0.28 68
IV.MPPT.EHZ. 2020-07-20T08:40:34.01 0.6 undecidable manual P 293 81.3519 50 0.18 44
IV.RUFI.EHZ. 2020-07-20T08:40:34.36 0.3 undecidable manual S 294 45.3213 50 -0.34 67
IV.PIEI.HHZ. 2020-07-20T08:40:33.80 0.3 undecidable manual S 111 43.5231 50 -0.41 67
IV.ATMI.HHZ. 2020-07-20T08:40:33.42 0.3 undecidable manual S 153 42.4242 50 -0.49 66
IV.PE3.EHZ. 2020-07-20T08:40:33.07 0.3 undecidable manual S 86 37.629 50 0.44 67
IV.RINC.HHZ. 2020-07-20T08:40:33.23 0.3 undecidable manual S 305 41.1255 50 -0.34 68
IV.VISG.HHZ. 2020-07-20T08:40:32.89 0.6 undecidable manual P 320 74.2701 50 0.16 44
IV.ATPI.EHZ. 2020-07-20T08:40:32.59 0.3 undecidable manual S 129 39.0276 50 -0.41 67
IV.ATCC.EHZ. 2020-07-20T08:40:32.77 0.6 undecidable manual P 138 73.2711 50 0.18 44
IV.ARVD.HHZ. 2020-07-20T08:40:32.85 0.3 undecidable manual P 105 75.9684 50 -0.14 66
IV.APEC.HHZ. 2020-07-20T08:40:31.95 0.3 undecidable manual S 112 33.9438 104 0.31 69
IV.CSNT.HHE. 2020-07-20T08:40:31.39 0.1 undecidable manual P 250 63.3921 50 0.33 87
IV.BRIS.HHZ. 2020-07-20T08:40:31.82 0.6 undecidable manual P 341 64.491 50 0.59 40
IV.SEI.HHZ. 2020-07-20T08:40:31.89 0.6 undecidable manual P 308 68.1762 50 0.1 45
IV.SSFR.HHZ. 2020-07-20T08:40:31.04 0.3 undecidable manual P 113 66.0894 50 -0.44 64
IV.SFI.EHZ. 2020-07-20T08:40:30.03 0.3 undecidable manual S 330 29.3484 106 -0.07 73
IV.MPAG.EHZ. 2020-07-20T08:40:30.04 0.3 undecidable manual P 95 58.8966 50 -0.33 66
IV.MURB.HHZ. 2020-07-20T08:40:30.47 0.6 undecidable manual P 139 60.6948 50 -0.17 45
IV.RONT.HHZ. 2020-07-20T08:40:30.72 0.3 undecidable manual P 307 59.3961 50 0.28 67
IV.ATMC.EHZ. 2020-07-20T08:40:29.27 0.3 undecidable manual S 152 28.5492 106 -0.54 66
IV.ATFO.HHZ. 2020-07-20T08:40:29.58 0.3 undecidable manual P 128 55.5 50 -0.26 67
IV.FRON.EHZ. 2020-07-20T08:40:29.88 0.3 undecidable manual P 107 58.6968 50 -0.45 64
IV.LMD.HHZ. 2020-07-20T08:40:28.97 0.1 undecidable manual P 330 51.5151 50 -0.26 90
IV.BADI.EHZ. 2020-07-20T08:40:28.60 0.3 undecidable manual S 136 25.2525 108 -0.11 73
IV.RINC.HHZ. 2020-07-20T08:40:27.24 0.1 undecidable manual P 305 41.1255 50 -0.39 90
IV.RUFI.EHZ. 2020-07-20T08:40:27.92 0.3 undecidable manual P 294 45.3213 50 -0.36 67
IV.PIEI.HHZ. 2020-07-20T08:40:27.40 0.1 undecidable manual P 111 43.5231 50 -0.6 84
IV.ASQU.HHZ. 2020-07-20T08:40:27.88 0.3 undecidable manual S 305 23.4543 109 -0.26 71
IV.ATMI.HHZ. 2020-07-20T08:40:27.57 0.3 undecidable manual P 153 42.4242 50 -0.25 69
IV.PE3.EHZ. 2020-07-20T08:40:27.07 0.3 undecidable manual P 86 37.629 50 -0.02 73
IV.ATVO.HHZ. 2020-07-20T08:40:27.74 0.1 undecidable manual P 137 44.5221 50 -0.4 89
IV.PARC.HHZ. 2020-07-20T08:40:26.21 0.3 undecidable manual S 100 17.0718 116 0.11 74
IV.APEC.HHZ. 2020-07-20T08:40:26.28 0.1 undecidable manual P 112 33.9438 104 -0.23 94
IV.ATPI.EHZ. 2020-07-20T08:40:26.86 0.1 undecidable manual P 129 39.0276 50 -0.44 89
IV.SSP9.EHZ. 2020-07-20T08:40:25.39 0.3 undecidable manual S 143 13.875 121 0.28 72
IT.SNS1.HNZ. 2020-07-20T08:40:25.84 0.3 undecidable manual S 144 13.875 121 0.72 63
IV.SFI.EHZ. 2020-07-20T08:40:25.40 0.1 undecidable manual P 330 29.3484 106 -0.22 95
IV.ATMC.EHZ. 2020-07-20T08:40:25.07 0.1 undecidable manual P 152 28.5492 106 -0.38 92
IV.CPGN.EHZ. 2020-07-20T08:40:25.84 0.1 undecidable manual P 59 27.3504 107 0.62 86
IV.ASQU.HHZ. 2020-07-20T08:40:24.32 0.1 negative manual P 305 23.4543 109 -0.17 97
IV.BADI.EHZ. 2020-07-20T08:40:24.67 0.1 undecidable manual P 136 25.2525 108 -0.15 97
IV.PARC.HHZ. 2020-07-20T08:40:23.44 0.1 negative manual P 100 17.0718 116 0.12 99
IV.CRE.HHZ. 2020-07-20T08:40:23.70 0.3 undecidable manual S 225 8.6802 133 0.03 77
IV.CRE.HHZ. 2020-07-20T08:40:22.05 0.1 positive manual P 225 8.6802 133 0.14 100
IV.SSP9.EHZ. 2020-07-20T08:40:22.91 0.1 undecidable manual P 143 13.875 121 0.17 99
IT.SNS1.HNZ. 2020-07-20T08:40:22.97 0.6 undecidable manual P 144 13.875 121 0.22 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.4 0.000036251174999999994 0.2368 AML other m 2020-07-20T08:40:49.65
IV.RONT.HHE. ML:2.4 0.0004784096 0.224 AML other m 2020-07-20T08:40:40.82
IV.RONT.HHN. ML:2.3 0.0004406239 0.2048 AML other m 2020-07-20T08:40:43.35
IV.ARVD.HHE. ML:1.5 0.0000475956 0.1408 AML other m 2020-07-20T08:40:46.23
IV.ATCC.EHN. ML:2.0 0.000157 0.68 AML other m 2020-07-20T08:40:46.46
IV.ATCC.EHE. ML:2.1 0.00018099999999999998 0.38 AML other m 2020-07-20T08:40:46.69
IV.BRIS.HHN. ML:1.8 0.00013082235 0.4416 AML other m 2020-07-20T08:40:46.56
IV.BRIS.HHE. ML:2.0 0.00016701585000000003 0.5184 AML other m 2020-07-20T08:40:47.88
IV.CRE.HHE. ML:2.2 0.0023862684999999997 0.224 AML other m 2020-07-20T08:40:24.02
IV.CRE.HHN. ML:2.4 0.0039833025 0.2176 AML other m 2020-07-20T08:40:23.97
IV.SSP9.EHN. ML:2.0 0.0010291100000000002 0.256 AML other m 2020-07-20T08:40:26.11
IV.SSP9.EHE. ML:1.6 0.0004922753 0.1792 AML other m 2020-07-20T08:40:27.04
IV.PARC.HHE. ML:2.1 0.0012722458999999998 0.2048 AML other m 2020-07-20T08:40:26.84
IV.PARC.HHN. ML:2.5 0.0029626925 0.1216 AML other m 2020-07-20T08:40:26.46
IV.ASQU.HHN. ML:2.1 0.0008333017000000001 0.3648 AML other m 2020-07-20T08:40:30.83
IV.ASQU.HHE. ML:2.0 0.0007395795 0.4608 AML other m 2020-07-20T08:40:30.67
IV.BADI.EHE. ML:1.7 0.00032559930000000003 0.1024 AML other m 2020-07-20T08:40:29.33
IV.BADI.EHN. ML:1.6 0.00022085749999999998 0.1216 AML other m 2020-07-20T08:40:30.07
IV.SFI.HNN. ML:1.6 0.00020491775 0.1856 AML other m 2020-07-20T08:40:30.57
IV.SFI.EHN. ML:1.5 0.00016646640000000002 0.0768 AML other m 2020-07-20T08:40:30.92
IV.SFI.HNE. ML:1.7 0.00023526884999999998 0.0896 AML other m 2020-07-20T08:40:30.57
IV.SFI.EHE. ML:1.7 0.00023542855 0.0768 AML other m 2020-07-20T08:40:30.57
IV.CPGN.EHN. ML:1.9 0.00041238555 0.2816 AML other m 2020-07-20T08:40:32.70
IV.CPGN.HNN. ML:2.1 0.00066464315 0.3712 AML other m 2020-07-20T08:40:31.58
IV.CPGN.EHE. ML:2.0 0.00062769385 0.3392 AML other m 2020-07-20T08:40:31.79
IV.CPGN.HNE. ML:2.0 0.00060795495 0.3072 AML other m 2020-07-20T08:40:31.98
IV.APEC.HNE. ML:2.0 0.00046099835 0.2112 AML other m 2020-07-20T08:40:34.40
IV.APEC.HHN. ML:2.0 0.00043516374999999995 0.5632 AML other m 2020-07-20T08:40:35.66
IV.APEC.HHE. ML:2.0 0.00040798924999999996 0.3648 AML other m 2020-07-20T08:40:35.93
IV.APEC.HNN. ML:2.0 0.00038260535 0.2176 AML other m 2020-07-20T08:40:33.11
IV.ATPI.HNN. ML:1.6 0.0001583764 0.128 AML other m 2020-07-20T08:40:34.21
IV.ATPI.HNE. ML:1.5 0.0001214803 0.1088 AML other m 2020-07-20T08:40:34.45
IV.ATPI.EHN. ML:1.7 0.0001861902 0.1408 AML other m 2020-07-20T08:40:34.22
IV.ATPI.EHE. ML:1.6 0.00012932189999999999 0.16 AML other m 2020-07-20T08:40:32.85
IV.RINC.HHN. ML:2.0 0.00038168395 0.4032 AML other m 2020-07-20T08:40:37.32
IV.RINC.HHE. ML:1.9 0.00028694619999999996 0.32 AML other m 2020-07-20T08:40:36.82
IV.PIEI.HHN. ML:1.7 0.00016742954999999997 0.096 AML other m 2020-07-20T08:40:34.72
IV.PIEI.HHE. ML:2.1 0.00038402505 0.1152 AML other m 2020-07-20T08:40:35.10
IV.ATMI.HHE. ML:2.4 0.0007855979 0.1984 AML other m 2020-07-20T08:40:34.78
IV.ATMI.HHN. ML:2.1 0.0004263243 0.32 AML other m 2020-07-20T08:40:34.89
IV.ATVO.HHN. ML:1.9 0.00022515885 0.3008 AML other m 2020-07-20T08:40:35.40
IV.ATVO.HHE. ML:1.8 0.00019385624999999999 0.2816 AML other m 2020-07-20T08:40:35.76
IV.RUFI.EHE. ML:1.9 0.00022958655 0.3584 AML other m 2020-07-20T08:40:34.76
IV.RUFI.EHN. ML:1.7 0.0001544343 0.3648 AML other m 2020-07-20T08:40:35.17
IV.LMD.HHN. ML:1.9 0.00019236425000000002 0.32 AML other m 2020-07-20T08:40:37.16
IV.LMD.HHE. ML:1.9 0.00020948485 0.2432 AML other m 2020-07-20T08:40:38.26
IV.ATFO.HHE. ML:1.8 0.00016101885 0.4352 AML other m 2020-07-20T08:40:42.06
IV.ATFO.HHN. ML:1.6 0.00009187883499999999 0.2816 AML other m 2020-07-20T08:40:42.54
IV.FRON.EHN. ML:1.7 0.00011254002499999998 0.1216 AML other m 2020-07-20T08:40:40.57
IV.FRON.EHE. ML:1.5 0.00006911927500000001 0.4416 AML other m 2020-07-20T08:40:42.74
IV.MPAG.EHE. ML:1.6 0.000075108975 0.2432 AML other m 2020-07-20T08:40:41.00
IV.MPAG.EHN. ML:1.6 0.000078269145 0.1408 AML other m 2020-07-20T08:40:39.39
IV.MURB.HHN. ML:2.4 0.0004789038 0.3008 AML other m 2020-07-20T08:40:44.61
IV.MURB.HNN. ML:2.3 0.00044036295 0.3072 AML other m 2020-07-20T08:40:44.47
IV.MURB.HHE. ML:2.2 0.0003333862 0.2624 AML other m 2020-07-20T08:40:41.76
IV.MURB.HNE. ML:2.2 0.000284033 0.2624 AML other m 2020-07-20T08:40:41.76
IV.SSFR.HHE. ML:2.1 0.00024855885 0.1408 AML other m 2020-07-20T08:40:42.69
IV.SSFR.HNN. ML:2.2 0.0003060063 0.2048 AML other m 2020-07-20T08:40:44.44
IV.SSFR.HHN. ML:2.2 0.00027442215 0.1984 AML other m 2020-07-20T08:40:44.44
IV.SSFR.HNE. ML:2.1 0.00024282385 0.1408 AML other m 2020-07-20T08:40:42.69
IV.VISG.HHE. ML:1.6 0.000055871055000000005 0.416 AML other m 2020-07-20T08:40:49.49
IV.VISG.HHN. ML:1.5 0.000052396395 0.3584 AML other m 2020-07-20T08:40:48.59
IV.MPPT.EHN. ML:1.8 0.000094134805 0.2624 AML other m 2020-07-20T08:40:46.07
IV.MPPT.EHE. ML:1.7 0.00006877377999999999 0.6208 AML other m 2020-07-20T08:40:50.85
IV.MGAB.HHN. ML:2.2 0.0001823749 0.32 AML other m 2020-07-20T08:40:50.15
IV.MGAB.HNE. ML:2.2 0.0001950929 0.4608 AML other m 2020-07-20T08:40:50.14
IV.MGAB.HNN. ML:2.3 0.0002388166 0.5696 AML other m 2020-07-20T08:40:50.15
IV.MGAB.HHE. ML:2.2 0.0002012907 0.2816 AML other m 2020-07-20T08:40:49.00
IV.MOMA.HHN. ML:2.0 0.000085451265 0.2624 AML other m 2020-07-20T08:40:57.93
IV.MOMA.HHE. ML:2.0 0.00007772327 0.3392 AML other m 2020-07-20T08:40:54.29
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