Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 01-11-2021 and time 05:09:08 (Italy) in region 1 km NE Foligno (PG)

A magnitude ML 1.4 earthquake occured in region: 1 km NE Foligno (PG), on

  • 01-11-2021 04:09:08 (UTC)
  • 01-11-2021 05:09:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9630, 12.7170 at 9 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
Foligno PG 1 57155 57155
Spello PG 5 8645 65800
Montefalco PG 9 5679 71479
Bevagna PG 9 5081 76560
Trevi PG 10 8469 85029
Valtopina PG 11 1398 86427
Cannara PG 11 4305 90732
Gualdo Cattaneo PG 14 6155 96887
Assisi PG 15 28299 125186
Castel Ritaldi PG 16 3278 128464
Campello sul Clitunno PG 17 2442 130906
Nocera Umbra PG 18 5839 136745
Bastia Umbra PG 18 21874 158619
Giano dell'Umbria PG 18 3846 162465
Sellano PG 19 1079 163544
Bettona PG 20 4367 167911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
1 Km NE of Foligno (57155 inhabitants)
31 Km SE of Perugia (166134 inhabitants)
45 Km N of Terni (111501 inhabitants)
79 Km NE of Viterbo (67173 inhabitants)
87 Km W of Teramo (54892 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
98 Km SW of Ancona (100861 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 1.4 2021-11-01
04:09:08		 42.9628 12.7172 9 2022-03-30
13:04:27		 Bollettino Sismico Italiano INGV 99365141
Reviewed
Rev100 		ML 1.4 2021-11-01
04:09:08		 42.9642 12.7178 10 2021-11-01
04:13:26		 Sala Sismica INGV-Roma 97130901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-01 04:09:08 ± 0.04
Latitude 42.9628 ± 0.0027
Longitude 12.7172 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99365141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 271
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.01259
Epicentral distance of station farthest from the epicenter (degree) 0.58726
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 99365141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-05 16:55:50

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 97130901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-01 04:13:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-11-01T04:09:20.01 0.6 undecidable manual P 17 62.0934 50 0.15 44
IV.MF5.EHZ. 2021-11-01T04:09:20.21 0.6 negative manual P 87 60.2952 50 0.62 39
IV.SMA1.EHZ. 2021-11-01T04:09:20.03 0.1 undecidable manual P 126 62.3931 50 0.13 88
IV.PIEI.HHZ. 2021-11-01T04:09:20.40 0.1 undecidable manual P 347 65.1903 50 0.05 88
IV.EL6.EHZ. 2021-11-01T04:09:18.10 1.0 undecidable manual P 37 51.2154 50 -0.08 23
IV.GUMA.HHZ. 2021-11-01T04:09:18.53 0.6 undecidable manual P 77 51.3153 50 0.33 43
IV.SSFR.HHZ. 2021-11-01T04:09:18.48 0.6 positive manual P 6 52.8027 50 0.05 45
IV.ATCC.EHZ. 2021-11-01T04:09:18.00 0.3 undecidable manual S 346 25.4523 110 0.02 72
IV.LNSS.HHZ. 2021-11-01T04:09:17.39 0.1 negative manual P 147 47.8188 50 -0.27 87
IV.MOMA.HHZ. 2021-11-01T04:09:16.90 0.3 undecidable manual S 214 21.2676 113 0.26 69
IV.CSP1.EHZ. 2021-11-01T04:09:16.69 0.6 negative manual P 70 42.0246 50 -0.08 46
IV.CESX.HHZ. 2021-11-01T04:09:16.41 1.0 negative manual P 195 40.7259 50 -0.16 23
IV.ARRO.EHZ. 2021-11-01T04:09:16.81 0.1 undecidable manual P 175 42.7239 50 -0.07 92
IV.MURB.HHZ. 2021-11-01T04:09:15.95 0.6 negative manual P 335 36.741 50 -0.01 47
IV.GAVE.EHZ. 2021-11-01T04:09:15.32 0.3 positive manual P 154 33.2445 50 -0.1 70
IV.FOSV.EHZ. 2021-11-01T04:09:15.92 0.6 negative manual P 6 37.0296 50 -0.08 46
IV.CESI.HHZ. 2021-11-01T04:09:15.00 0.3 undecidable manual S 73 15.873 120 0.04 73
IV.SNTG.HHZ. 2021-11-01T04:09:15.77 0.1 undecidable manual P 29 37.1295 50 -0.24 89
IV.ATCC.EHZ. 2021-11-01T04:09:14.08 1.0 undecidable manual P 346 25.4523 110 0.06 24
IV.FDMO.HHZ. 2021-11-01T04:09:14.82 0.6 positive manual P 75 31.1466 50 -0.27 45
IV.MML1.EHZ. 2021-11-01T04:09:14.10 0.6 positive manual P 51 26.5512 109 -0.13 47
IV.ASSB.HHZ. 2021-11-01T04:09:13.30 0.3 undecidable manual S 332 10.0788 132 0 74
IV.MOMA.HHZ. 2021-11-01T04:09:13.26 0.6 positive manual P 214 21.2676 113 0.01 48
IV.CESI.HHZ. 2021-11-01T04:09:12.44 0.1 positive manual P 73 15.873 120 0.16 94
IT.FOPC.HGN. 2021-11-01T04:09:11.41 0.3 undecidable manual S 304 1.3986 171 -0.37 69
IV.ASSB.HHZ. 2021-11-01T04:09:11.46 0.1 undecidable manual P 332 10.0788 132 0.14 96
IT.FOPC.HGN. 2021-11-01T04:09:10.44 0.1 undecidable manual P 304 1.3986 171 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:2.3 0.002515 0.16 AML other m 2021-11-01T04:09:13.60
IV.ASSB.HHE. ML:2.0 0.0015400000000000001 0.08 AML other m 2021-11-01T04:09:13.80
IV.CESI.HHE. ML:1.3 0.00017549999999999998 0.38 AML other m 2021-11-01T04:09:15.28
IV.CESI.HHN. ML:1.7 0.000468 0.3 AML other m 2021-11-01T04:09:16.21
IV.MOMA.HHN. ML:1.3 0.00013350000000000002 0.62 AML other m 2021-11-01T04:09:17.96
IV.MOMA.HHE. ML:1.5 0.00020700000000000002 0.16 AML other m 2021-11-01T04:09:18.83
IV.MML1.EHN. ML:1.5 0.00016499999999999997 0.28 AML other m 2021-11-01T04:09:18.75
IV.MML1.EHE. ML:1.4 0.00013769999999999999 0.18 AML other m 2021-11-01T04:09:18.77
IV.ATCC.EHN. ML:1.6 0.000254 0.36 AML other m 2021-11-01T04:09:18.82
IV.ATCC.EHE. ML:1.6 0.000248 0.38 AML other m 2021-11-01T04:09:19.74
IV.FDMO.HHN. ML:1.1 0.00006515 1.36 AML other m 2021-11-01T04:09:19.81
IV.FDMO.HHE. ML:1.2 0.00007139999999999999 0.28 AML other m 2021-11-01T04:09:20.35
IV.GAVE.EHE. ML:1.7 0.0002035 0.4 AML other m 2021-11-01T04:09:20.36
IV.GAVE.EHN. ML:1.6 0.00015300000000000003 0.38 AML other m 2021-11-01T04:09:20.45
IV.MURB.HHE. ML:2.1 0.00048699999999999997 0.24 AML other m 2021-11-01T04:09:22.63
IV.SNTG.HHE. ML:1.1 0.000042749999999999996 0.72 AML other m 2021-11-01T04:09:22.39
IV.SNTG.HHN. ML:1.2 0.0000592 1.64 AML other m 2021-11-01T04:09:23.04
IV.MURB.HHN. ML:2.1 0.00045200000000000004 1.06 AML other m 2021-11-01T04:09:23.21
IV.CESX.HHE. ML:1.1 0.0000443 1.72 AML other m 2021-11-01T04:09:23.92
IV.CESX.HHN. ML:1.3 0.0000648 1.12 AML other m 2021-11-01T04:09:24.07
IV.FOSV.EHE. ML:1.2 0.00005535 0.96 AML other m 2021-11-01T04:09:24.86
IV.CSP1.EHE. ML:1.5 0.00011 0.68 AML other m 2021-11-01T04:09:24.58
IV.CSP1.EHN. ML:1.7 0.00015010000000000002 0.24 AML other m 2021-11-01T04:09:24.83
IV.LNSS.HHE. ML:1.4 0.00007245 0.94 AML other m 2021-11-01T04:09:25.03
IV.FOSV.EHN. ML:1.1 0.00005225 0.28 AML other m 2021-11-01T04:09:25.11
IV.LNSS.HHN. ML:1.4 0.00006735 0.78 AML other m 2021-11-01T04:09:26.78
IV.GUMA.HHE. ML:1.4 0.00006459999999999998 0.24 AML other m 2021-11-01T04:09:27.01
IV.GUMA.HHN. ML:1.4 0.0000694 0.6 AML other m 2021-11-01T04:09:27.03
IV.SSFR.HHE. ML:1.5 0.00007825 0.18 AML other m 2021-11-01T04:09:27.52
IV.SSFR.HHN. ML:1.5 0.00006825 0.18 AML other m 2021-11-01T04:09:29.70
IV.SMA1.EHN. ML:1.2 0.0000322 0.6 AML other m 2021-11-01T04:09:32.88
IV.SMA1.EHE. ML:1.3 0.00003875 0.92 AML other m 2021-11-01T04:09:35.15
IV.MOMA.HNN. ML:1.3 0.00012989234999999998 0.128 AML other m 2021-11-01T04:09:18.03
IV.MOMA.HNE. ML:1.4 0.00019114795000000002 0.1728 AML other m 2021-11-01T04:09:18.83
IV.MML1.HNN. ML:1.5 0.00016890769999999998 0.24 AML other m 2021-11-01T04:09:19.00
IV.MML1.HNE. ML:1.4 0.0001447059 0.1824 AML other m 2021-11-01T04:09:18.86
IV.GAVE.HNE. ML:1.6 0.0001789351 0.1504 AML other m 2021-11-01T04:09:20.36
IV.MURB.HNN. ML:2.0 0.0003969021 0.2688 AML other m 2021-11-01T04:09:23.75
IV.MURB.HNE. ML:2.0 0.00038653905 0.24 AML other m 2021-11-01T04:09:23.84
IV.ARRO.EHN. ML:0.9 0.00002529919 0.4 AML other m 2021-11-01T04:09:24.35
IV.ARRO.EHE. ML:0.9 0.000025379535000000002 0.1984 AML other m 2021-11-01T04:09:27.07
IV.EL6.EHN. ML:1.3 0.000048781724999999996 0.1792 AML other m 2021-11-01T04:09:28.30
IV.EL6.EHE. ML:1.4 0.00006601629 0.2976 AML other m 2021-11-01T04:09:26.73
IV.PIEI.HHN. ML:1.1 0.000023597205 0.3584 AML other m 2021-11-01T04:09:32.47
IV.PIEI.HHE. ML:1.3 0.00003353484 0.2208 AML other m 2021-11-01T04:09:31.00
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