Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 01-02-2021 and time 21:04:20 (UTC) in region 6 km W Gubbio (PG)

A magnitude ML 1.8 earthquake occured in region: 6 km W Gubbio (PG), on

  • 01-02-2021 21:04:20 (UTC)
  • 01-02-2021 22:04:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3730, 12.5100 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
Gubbio PG 6 32216 32216
Pietralunga PG 10 2111 34327
Scheggia e Pascelupo PG 13 1393 35720
Cantiano PU 15 2245 37965
Montone PG 15 1680 39645
Costacciaro PG 16 1216 40861
Umbertide PG 16 16681 57542
Sigillo PG 19 2404 59946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Perugia (166134 inhabitants)
49 Km NW of Foligno (57155 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
67 Km SW of Fano (60888 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
77 Km S of Rimini (147750 inhabitants)
86 Km W of Ancona (100861 inhabitants)
88 Km S of Cesena (96758 inhabitants)
91 Km N of Terni (111501 inhabitants)
95 Km E of Siena (53903 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 1.8 2021-02-01
21:04:20		 43.373 12.5102 8 2021-07-12
16:55:13		 Bollettino Sismico Italiano INGV 90552281
Reviewed
Rev100 		ML 1.7 2021-02-01
21:04:20		 43.3712 12.5172 8 2021-02-01
21:15:27		 Sala Sismica INGV-Roma 86770421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-01 21:04:20 ± 0.04
Latitude 43.3730 ± 0.0027
Longitude 12.5102 ± 0.0037
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 90552281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 258
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 14
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 70
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.84986
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 43
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 62
Type of magnitude ML
Reference to an origin 90552281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-01 02:01:58

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 86770421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-01 21:15:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-02-01T21:04:41.85 0.6 undecidable manual S 119 64.1913 50 0.81 36
IV.FDMO.HHZ. 2021-02-01T21:04:40.33 0.6 undecidable manual S 128 59.7957 50 0.47 42
IV.EL6.EHZ. 2021-02-01T21:04:37.17 0.6 undecidable manual S 96 47.9187 50 0.47 43
IV.MNTT.EHZ. 2021-02-01T21:04:37.89 0.6 undecidable manual P 111 94.3389 50 0.76 35
IV.MML1.HNE. 2021-02-01T21:04:36.80 0.1 undecidable manual S 128 47.1195 50 0.32 88
IV.MF5.EHZ. 2021-02-01T21:04:36.78 0.3 undecidable manual P 119 87.9453 50 0.64 56
IV.CAFI.HHZ. 2021-02-01T21:04:35.53 0.6 undecidable manual S 264 44.1225 50 -0.15 46
IV.MMO1.EHZ. 2021-02-01T21:04:35.52 0.3 undecidable manual P 128 84.4488 50 -0.09 65
IV.GAVE.EHZ. 2021-02-01T21:04:35.30 0.6 undecidable manual P 157 81.6516 50 0.11 43
IV.PARC.HHZ. 2021-02-01T21:04:34.10 0.3 undecidable manual S 325 37.5291 50 0.17 70
IV.SSP9.EHZ. 2021-02-01T21:04:34.20 0.1 undecidable manual S 306 37.7289 50 0.22 92
IV.SACS.HHZ. 2021-02-01T21:04:34.34 0.3 undecidable manual P 220 75.7686 50 0.07 66
IV.PE3.EHZ. 2021-02-01T21:04:34.20 0.6 undecidable manual S 358 35.8419 50 0.73 40
IV.NRCA.HHZ. 2021-02-01T21:04:34.33 0.3 undecidable manual P 141 77.2671 50 -0.18 65
IV.ASSB.HHZ. 2021-02-01T21:04:33.90 0.3 undecidable manual S 162 38.5281 50 -0.3 68
IV.PESA.HHZ. 2021-02-01T21:04:33.45 0.3 undecidable manual P 23 68.376 50 0.32 64
IV.CSP1.EHZ. 2021-02-01T21:04:32.41 0.3 undecidable manual P 119 64.1913 50 -0.09 67
IV.MOMA.HHZ. 2021-02-01T21:04:32.32 0.3 undecidable manual P 176 63.2922 50 -0.04 68
IV.MPAG.EHZ. 2021-02-01T21:04:32.90 0.3 undecidable manual S 35 34.743 50 -0.29 68
IV.FDMO.HHZ. 2021-02-01T21:04:31.41 0.1 undecidable manual P 128 59.7957 50 -0.4 85
IV.MGAB.HHZ. 2021-02-01T21:04:31.92 0.3 undecidable manual P 212 60.3951 50 0.02 69
IV.ATCC.EHZ. 2021-02-01T21:04:30.00 0.3 undecidable manual S 153 23.3544 109 0.6 64
IV.CRTC.HNE. 2021-02-01T21:04:30.92 0.3 undecidable manual P 34 53.1024 50 0.14 68
IV.CPGN.EHZ. 2021-02-01T21:04:30.90 0.3 undecidable manual P 342 49.9167 50 0.62 61
IV.NARO.HHZ. 2021-02-01T21:04:30.20 0.3 undecidable manual S 12 26.9508 107 -0.4 68
IV.BADI.EHZ. 2021-02-01T21:04:30.50 0.3 undecidable manual S 305 26.2515 107 0.15 71
IV.CESI.HHZ. 2021-02-01T21:04:30.47 0.1 positive manual P 142 51.8037 50 -0.11 91
IV.ATMC.EHE. 2021-02-01T21:04:30.50 0.3 undecidable manual S 288 26.8509 107 -0.06 73
IV.CRE.HHZ. 2021-02-01T21:04:30.56 0.3 undecidable manual P 301 52.6029 50 -0.14 68
IV.FRON.EHZ. 2021-02-01T21:04:29.50 0.3 undecidable manual S 47 23.6541 109 0 74
IV.CAFI.HHZ. 2021-02-01T21:04:29.31 0.1 undecidable manual P 264 44.1225 50 -0.09 93
IV.EL6.EHZ. 2021-02-01T21:04:29.65 0.1 undecidable manual P 96 47.9187 50 -0.34 88
IV.APEC.HHZ. 2021-02-01T21:04:29.10 0.3 undecidable manual S 341 21.867 111 0.2 71
IV.MML1.HNE. 2021-02-01T21:04:29.42 0.1 positive manual P 128 47.1195 50 -0.44 86
IV.SSP9.EHZ. 2021-02-01T21:04:28.24 0.3 undecidable manual P 306 37.7289 50 -0.17 69
IV.ATVA.EHN. 2021-02-01T21:04:28.70 0.3 undecidable manual S 240 20.9679 111 0.08 73
IV.MMUR.HNE. 2021-02-01T21:04:28.51 0.3 undecidable manual P 79 40.0266 50 -0.25 68
IV.PIEI.HHZ. 2021-02-01T21:04:28.30 0.3 undecidable manual S 6 18.1707 114 0.57 65
IV.PARC.HHZ. 2021-02-01T21:04:28.21 0.3 undecidable manual P 325 37.5291 50 -0.18 69
IV.FOSV.EHZ. 2021-02-01T21:04:28.90 0.3 undecidable manual S 113 22.0668 110 -0.08 73
IV.ASSB.HHZ. 2021-02-01T21:04:28.07 0.1 positive manual P 162 38.5281 50 -0.47 87
IV.ATMI.HHZ. 2021-02-01T21:04:28.40 0.3 undecidable manual S 258 19.9689 112 0.08 73
IV.PE3.EHZ. 2021-02-01T21:04:28.20 0.1 undecidable manual P 358 35.8419 50 0.08 95
IV.ARVD.HHZ. 2021-02-01T21:04:27.99 0.1 positive manual P 68 37.4292 50 -0.37 89
IV.MPAG.EHZ. 2021-02-01T21:04:27.55 0.1 positive manual P 35 34.743 50 -0.41 89
IV.ATSC.EHN. 2021-02-01T21:04:27.40 0.6 undecidable manual S 68 15.2736 118 0.56 44
IT.UMBT.HGZ. 2021-02-01T21:04:27.69 0.3 undecidable manual S 240 15.4734 118 0.8 60
IV.BADI.EHZ. 2021-02-01T21:04:26.21 0.1 positive manual P 305 26.2515 107 -0.11 96
IV.ATPC.HHE. 2021-02-01T21:04:26.50 0.3 undecidable manual S 340 12.6762 123 0.44 69
IV.NARO.HHZ. 2021-02-01T21:04:26.14 0.1 positive manual P 12 26.9508 107 -0.32 92
IV.ATMC.EHE. 2021-02-01T21:04:26.24 0.1 positive manual P 288 26.8509 107 -0.2 94
IV.ATVA.EHN. 2021-02-01T21:04:25.36 0.1 undecidable manual P 240 20.9679 111 0.04 98
IV.ATMI.HHZ. 2021-02-01T21:04:25.12 0.1 positive manual P 258 19.9689 112 -0.03 98
IV.FRON.EHZ. 2021-02-01T21:04:25.64 0.1 positive manual P 47 23.6541 109 -0.19 95
IV.FOSV.EHZ. 2021-02-01T21:04:25.35 0.1 positive manual P 113 22.0668 110 -0.17 95
IV.APEC.HHZ. 2021-02-01T21:04:25.53 0.1 positive manual P 341 21.867 111 0.05 98
IV.ATLO.HNN. 2021-02-01T21:04:25.40 0.3 undecidable manual S 232 10.4784 128 -0.04 75
IV.ATCC.EHZ. 2021-02-01T21:04:25.79 0.3 undecidable manual P 153 23.3544 109 0.02 74
IV.TB02.DHE.01 2021-02-01T21:04:24.60 0.3 undecidable manual S 268 8.0808 135 -0.23 72
IT.UMBT.HGZ. 2021-02-01T21:04:24.77 0.1 positive manual P 240 15.4734 118 0.45 91
IV.TB03.DHZ.01 2021-02-01T21:04:24.70 0.1 undecidable manual S 291 8.6802 134 -0.25 96
IV.ATSC.EHN. 2021-02-01T21:04:24.36 0.1 positive manual P 68 15.2736 118 0.07 98
IV.PIEI.HHZ. 2021-02-01T21:04:24.85 0.1 positive manual P 6 18.1707 114 0.05 98
IV.ATPC.HHE. 2021-02-01T21:04:23.94 0.1 positive manual P 340 12.6762 123 0.09 98
IV.TB02.DHE.01 2021-02-01T21:04:23.08 0.1 positive manual P 268 8.0808 135 -0.05 100
IV.TB03.DHZ.01 2021-02-01T21:04:23.14 0.1 positive manual P 291 8.6802 134 -0.06 100
IV.MURB.HHZ. 2021-02-01T21:04:23.89 0.1 positive manual P 175 12.2766 124 0.12 98
IV.TB01.DHE.01 2021-02-01T21:04:23.90 0.1 undecidable manual S 279 6.0939 144 -0.47 92
IV.ATLO.HNN. 2021-02-01T21:04:23.54 0.1 positive manual P 232 10.4784 128 0.05 100
IV.TB01.DHE.01 2021-02-01T21:04:22.75 0.1 positive manual P 279 6.0939 144 -0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HNE. ML:2.3 0.0023425019999999998 0.3072 AML other m 2021-02-01T21:04:26.48
IV.MURB.HHE. ML:2.3 0.0025576460000000002 0.3072 AML other m 2021-02-01T21:04:26.48
IV.PIEI.HHN. ML:2.0 0.0008985000000000001 0.14 AML other m 2021-02-01T21:04:28.64
IV.MURB.HHN. ML:2.3 0.0023470174999999996 0.2688 AML other m 2021-02-01T21:04:28.76
IV.MURB.HNN. ML:2.3 0.00225 0.26 AML other m 2021-02-01T21:04:28.77
IV.PIEI.HHE. ML:2.2 0.0013003591500000001 0.1536 AML other m 2021-02-01T21:04:28.77
IV.APEC.HHN. ML:1.8 0.000502 0.18 AML other m 2021-02-01T21:04:29.47
IV.APEC.HHE. ML:1.9 0.0005525 0.14 AML other m 2021-02-01T21:04:29.77
IV.CAFI.HNN. ML:1.8 0.0002080216 1.0368 AML other m 2021-02-01T21:04:29.00
IV.ATMI.HHE. ML:1.8 0.000537 1.78 AML other m 2021-02-01T21:04:30.94
IV.FRON.EHN. ML:1.6 0.00027695265 0.1024 AML other m 2021-02-01T21:04:30.27
IV.NARO.HHE. ML:1.7 0.000266 0.22 AML other m 2021-02-01T21:04:30.37
IV.BADI.EHN. ML:2.4 0.001415 0.2 AML other m 2021-02-01T21:04:30.77
IV.BADI.EHE. ML:2.2 0.00098581005 0.1792 AML other m 2021-02-01T21:04:30.76
IV.FRON.EHE. ML:1.5 0.000199927775 0.1408 AML other m 2021-02-01T21:04:31.11
IV.NARO.HHN. ML:1.4 0.000146609195 0.064 AML other m 2021-02-01T21:04:31.16
IV.ATCC.EHE. ML:1.9 0.0005950217499999999 0.2688 AML other m 2021-02-01T21:04:31.19
IV.FOSV.EHE. ML:1.5 0.00022266164999999998 0.2944 AML other m 2021-02-01T21:04:31.97
IV.FOSV.EHN. ML:1.5 0.000237 0.28 AML other m 2021-02-01T21:04:31.72
IV.MPAG.HNN. ML:1.7 0.00019504254999999998 0.9216 AML other m 2021-02-01T21:04:32.59
IV.ATMI.HHN. ML:1.8 0.000561 0.52 AML other m 2021-02-01T21:04:32.90
IV.CESI.HNN. ML:1.7 0.000119333475 1.1936 AML other m 2021-02-01T21:04:33.23
IV.ATCC.EHN. ML:1.8 0.00046341405 0.3328 AML other m 2021-02-01T21:04:34.12
IV.MPAG.EHN. ML:1.4 0.00010164781 0.256 AML other m 2021-02-01T21:04:34.32
IV.APEC.HNN. ML:2.1 0.0008872001499999999 0.3072 AML other m 2021-02-01T21:04:34.66
IV.ARVD.HHN. ML:1.5 0.00011720079 0.1024 AML other m 2021-02-01T21:04:34.62
IV.ARVD.HHE. ML:1.6 0.0001365 0.1 AML other m 2021-02-01T21:04:34.95
IV.PARC.HHE. ML:1.5 0.000131420065 0.256 AML other m 2021-02-01T21:04:35.30
IV.ASSB.HHN. ML:1.6 0.0001390617 0.1024 AML other m 2021-02-01T21:04:35.19
IV.ASSB.HHE. ML:1.6 0.00016 0.2 AML other m 2021-02-01T21:04:35.24
IV.MPAG.EHE. ML:1.4 0.000098070675 0.2176 AML other m 2021-02-01T21:04:35.89
IV.CAFI.HHE. ML:1.5 0.00009484999999999999 0.12 AML other m 2021-02-01T21:04:35.91
IV.APEC.HNE. ML:1.9 0.00058572585 1.296 AML other m 2021-02-01T21:04:35.98
IV.PARC.HHN. ML:1.8 0.0002105 1.78 AML other m 2021-02-01T21:04:36.01
IV.CAFI.HHN. ML:1.5 0.00008990361499999999 1.7184 AML other m 2021-02-01T21:04:36.03
IV.PE3.EHN. ML:2.2 0.0006630000000000001 0.34 AML other m 2021-02-01T21:04:36.14
IV.PE3.EHE. ML:2.1 0.0005064999999999999 0.4 AML other m 2021-02-01T21:04:36.01
IV.CAFI.HNE. ML:1.6 0.00012153614499999999 0.256 AML other m 2021-02-01T21:04:36.60
IV.EL6.EHE. ML:1.8 0.0001740392 0.1408 AML other m 2021-02-01T21:04:38.48
IV.CESI.HHN. ML:1.4 0.00005804352 0.1408 AML other m 2021-02-01T21:04:38.51
IV.CESI.HHE. ML:1.4 0.00006918904000000001 0.0896 AML other m 2021-02-01T21:04:38.89
IV.EL6.EHN. ML:1.7 0.00013648057 0.1408 AML other m 2021-02-01T21:04:39.14
IV.CPGN.HNN. ML:1.9 0.0002238341 1.0368 AML other m 2021-02-01T21:04:39.62
IV.CRE.HHE. ML:1.6 0.0000998 0.32 AML other m 2021-02-01T21:04:39.39
IV.CRE.HHN. ML:1.7 0.00013350000000000002 0.28 AML other m 2021-02-01T21:04:39.50
IV.FDMO.HHN. ML:1.8 0.0001285 0.22 AML other m 2021-02-01T21:04:40.59
IV.FDMO.HHE. ML:1.7 0.00009475409 0.2048 AML other m 2021-02-01T21:04:41.24
IV.MPAG.HNE. ML:1.5 0.00013645171500000001 1.3984 AML other m 2021-02-01T21:04:42.11
IV.CSP1.EHN. ML:2.0 0.000176 1.76 AML other m 2021-02-01T21:04:43.05
IV.MGAB.HNE. ML:1.9 0.0001687882 0.384 AML other m 2021-02-01T21:04:43.18
IV.MGAB.HHE. ML:1.9 0.000163 1.36 AML other m 2021-02-01T21:04:43.87
IV.MGAB.HNN. ML:2.0 0.00020488984999999997 0.2432 AML other m 2021-02-01T21:04:43.55
IV.MGAB.HHN. ML:2.0 0.0002094494 0.2304 AML other m 2021-02-01T21:04:43.55
IV.CESI.HNE. ML:1.6 0.00010656661 0.448 AML other m 2021-02-01T21:04:43.60
IV.CSP1.EHE. ML:1.9 0.0001459454 0.192 AML other m 2021-02-01T21:04:43.89
IV.PESA.HHE. ML:2.0 0.00017652630000000003 0.256 AML other m 2021-02-01T21:04:46.16
IV.NRCA.HHE. ML:1.6 0.0000613 0.86 AML other m 2021-02-01T21:04:46.01
IV.NRCA.HHN. ML:1.8 0.00009604999999999999 0.12 AML other m 2021-02-01T21:04:46.59
IV.PESA.HHN. ML:2.0 0.00017542525 0.2304 AML other m 2021-02-01T21:04:46.71
IV.CPGN.EHN. ML:2.5 0.0009234787 0.1088 AML other m 2021-02-01T21:04:46.96
IV.CPGN.EHE. ML:2.3 0.0004899366 0.1216 AML other m 2021-02-01T21:04:47.15
IV.CPGN.HNE. ML:1.8 0.00015636345 0.8448 AML other m 2021-02-01T21:04:48.42
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