Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 04-11-2021 and time 21:48:29 (Italy) in region 5 km SW Gualdo Tadino (PG)

A magnitude ML 1.9 earthquake occured in region: 5 km SW Gualdo Tadino (PG), on

  • 04-11-2021 20:48:29 (UTC)
  • 04-11-2021 21:48:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1900, 12.7500 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
Gualdo Tadino PG 6 15208 15208
Nocera Umbra PG 9 5839 21047
Fossato di Vico PG 12 2840 23887
Valfabbrica PG 12 3389 27276
Valtopina PG 15 1398 28674
Fiuminata MC 15 1402 30076
Sigillo PG 16 2404 32480
Sefro MC 17 422 32902
Assisi PG 17 28299 61201
Esanatoglia MC 17 2034 63235
Costacciaro PG 19 1216 64451
Pioraco MC 19 1134 65585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Foligno (57155 inhabitants)
31 Km E of Perugia (166134 inhabitants)
70 Km N of Terni (111501 inhabitants)
76 Km S of Fano (60888 inhabitants)
77 Km E of Arezzo (99543 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
98 Km NW of Teramo (54892 inhabitants)
98 Km S of Rimini (147750 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 2021-11-04
20:48:29		 43.1903 12.7498 11 2022-03-30
13:04:17		 Bollettino Sismico Italiano INGV 97745401
Reviewed
Rev100 		ML 1.9 2021-11-04
20:48:29		 43.188 12.7557 11 2021-11-04
21:01:32		 Sala Sismica INGV-Roma 97262491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-04 20:48:29 ± 0.04
Latitude 43.1903 ± 0.0018
Longitude 12.7498 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97745401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
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 64
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58906
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 54
Type of magnitude ML
Reference to an origin 97745401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-12 17:24:10

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 97262491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-04 21:01:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2021-11-04T20:49:23.78 3.0 undecidable manual Sg 3.53 0
IV.LAV9.HNZ. 2021-11-04T20:49:14.14 3.0 undecidable manual S -2.5 0
IV.VENL.EHZ. 2021-11-04T20:49:12.96 3.0 positive manual Pg 6.93 0
IV.MMO1.EHZ. 2021-11-04T20:48:47.85 0.6 undecidable manual S 124 56.7987 50 0.36 43
IV.GUMA.HHZ. 2021-11-04T20:48:46.75 0.6 undecidable manual S 106 49.4172 50 1.23 31
IV.NARO.HHZ. 2021-11-04T20:48:45.44 0.6 undecidable manual S 344 48.618 50 0.14 46
IV.CING.HHZ. 2021-11-04T20:48:43.71 0.6 undecidable manual S 60 41.4252 50 0.33 45
IV.ATPI.EHZ. 2021-11-04T20:48:43.20 0.6 undecidable manual S 316 40.2264 50 0.13 47
IV.PIEI.HHZ. 2021-11-04T20:48:43.76 0.6 undecidable manual S 336 42.0246 50 0.21 46
IV.ARVD.HHZ. 2021-11-04T20:48:42.22 0.6 undecidable manual S 24 37.4292 50 -0.11 47
IV.CSP1.EHZ. 2021-11-04T20:48:42.74 0.6 undecidable manual S 106 38.4282 50 0.17 46
IV.PARC.HHZ. 2021-11-04T20:48:41.71 0.3 undecidable manual P 321 65.3901 50 0.39 63
IV.EL6.EHZ. 2021-11-04T20:48:41.04 0.6 undecidable manual S 61 32.3454 50 0.09 48
IV.MF5.EHZ. 2021-11-04T20:48:41.24 0.3 undecidable manual P 111 61.6938 50 0.49 62
IV.TB01.DHZ. 2021-11-04T20:48:41.28 0.6 undecidable manual S 310 33.0447 50 0.13 47
IV.FRON.EHZ. 2021-11-04T20:48:41.74 0.6 undecidable manual S 357 36.3414 50 -0.29 45
IV.COR1.EHZ. 2021-11-04T20:48:40.08 0.3 undecidable manual P 22 53.0025 50 0.68 59
IV.FDMO.HHZ. 2021-11-04T20:48:40.90 0.6 undecidable manual S 122 32.2455 50 -0.02 48
IV.MGAB.HHZ. 2021-11-04T20:48:40.87 0.3 undecidable manual P 239 60.1953 50 0.36 64
IV.PE3.EHZ. 2021-11-04T20:48:40.77 0.3 undecidable manual P 340 59.6958 50 0.34 65
IV.ATSC.EHZ. 2021-11-04T20:48:39.10 0.6 undecidable manual S 349 26.4513 50 -0.28 46
IV.GAG1.HNE. 2021-11-04T20:48:39.52 0.6 undecidable manual S 78 26.2515 50 0.2 47
IV.GUMA.HHZ. 2021-11-04T20:48:39.12 0.3 undecidable manual P 106 49.4172 50 0.26 67
IV.GAVE.EHZ. 2021-11-04T20:48:39.97 0.3 undecidable manual P 168 56.499 50 0.03 69
IV.SSFR.HHN. 2021-11-04T20:48:39.43 0.6 undecidable manual S 5 27.4503 50 -0.21 47
IV.MMO1.EHZ. 2021-11-04T20:48:39.90 0.3 undecidable manual P 124 56.7987 50 -0.1 68
IT.FOPC.HGN. 2021-11-04T20:48:39.00 1.0 undecidable manual S 189 24.753 50 0.07 24
IV.CESI.HHZ. 2021-11-04T20:48:38.60 0.3 undecidable manual S 149 24.0537 50 -0.15 72
IV.MC2.EHZ. 2021-11-04T20:48:38.60 0.3 undecidable manual P 131 47.1195 50 0.1 70
IV.ATFO.HHZ. 2021-11-04T20:48:38.70 0.3 undecidable manual S 324 24.2535 50 -0.1 72
IV.APEC.HHZ. 2021-11-04T20:48:38.99 0.3 undecidable manual P 327 48.7179 50 0.24 67
IV.NRCA.HHZ. 2021-11-04T20:48:38.77 0.3 undecidable manual P 143 49.4172 50 -0.08 70
IV.MOMA.HHZ. 2021-11-04T20:48:38.00 0.3 undecidable manual P 199 45.3213 50 -0.22 68
IV.NARO.HHZ. 2021-11-04T20:48:38.54 0.1 undecidable manual P 344 48.618 50 -0.19 91
IV.MPAG.EHZ. 2021-11-04T20:48:38.57 0.1 undecidable manual P 1 48.7179 50 -0.17 91
IV.PIEI.HHZ. 2021-11-04T20:48:37.47 0.1 undecidable manual P 336 42.0246 50 -0.25 91
IV.CING.HHZ. 2021-11-04T20:48:37.65 0.3 undecidable manual P 60 41.4252 50 0.03 71
IV.MML1.EHZ. 2021-11-04T20:48:37.40 0.3 undecidable manual S 115 19.869 118 -0.16 72
IV.MURB.HHZ. 2021-11-04T20:48:37.80 0.3 undecidable manual S 294 19.9689 118 0.22 71
IV.CSP1.EHZ. 2021-11-04T20:48:37.06 0.1 undecidable manual P 106 38.4282 50 -0.09 94
IV.ATPI.EHZ. 2021-11-04T20:48:37.47 0.1 undecidable manual P 316 40.2264 50 0.03 95
IV.FRON.EHZ. 2021-11-04T20:48:36.50 0.1 undecidable manual P 357 36.3414 50 -0.34 90
IV.ASSB.HHZ. 2021-11-04T20:48:36.80 0.3 undecidable manual S 204 17.9709 120 -0.19 72
IV.FDMO.HHZ. 2021-11-04T20:48:36.00 0.1 undecidable manual P 122 32.2455 50 -0.2 93
IV.ARVD.HHZ. 2021-11-04T20:48:36.79 0.1 undecidable manual P 24 37.4292 50 -0.22 92
IV.EL6.EHZ. 2021-11-04T20:48:36.21 0.1 undecidable manual P 61 32.3454 50 -0.01 97
IV.SNTG.HHZ. 2021-11-04T20:48:36.60 0.3 undecidable manual S 65 16.9719 122 -0.09 73
IV.TB01.DHZ. 2021-11-04T20:48:36.23 0.1 undecidable manual P 310 33.0447 50 -0.11 95
IV.FIU1.HNE. 2021-11-04T20:48:35.90 0.6 undecidable manual S 91 14.6742 126 -0.13 49
IV.GAG1.HNE. 2021-11-04T20:48:35.44 0.1 undecidable manual P 78 26.2515 50 0.16 95
IV.ATSC.EHZ. 2021-11-04T20:48:35.09 0.1 undecidable manual P 349 26.4513 50 -0.21 94
IV.FOSV.EHZ. 2021-11-04T20:48:35.20 0.3 undecidable manual S 4 11.5773 132 0 75
IV.SSFR.HHN. 2021-11-04T20:48:35.17 0.1 undecidable manual P 5 27.4503 50 -0.29 92
IV.ATFO.HHZ. 2021-11-04T20:48:34.95 0.1 undecidable manual P 324 24.2535 50 -0.03 98
IV.ATCC.EHZ. 2021-11-04T20:48:34.80 0.3 undecidable manual S 266 8.88 140 0.25 72
IV.MURB.HHZ. 2021-11-04T20:48:34.33 0.1 undecidable manual P 294 19.9689 118 0.06 98
IT.FOPC.HGN. 2021-11-04T20:48:34.73 0.3 undecidable manual P 189 24.753 50 -0.33 69
IV.CESI.HHZ. 2021-11-04T20:48:34.73 0.1 undecidable manual P 149 24.0537 50 -0.22 94
IV.MML1.EHZ. 2021-11-04T20:48:34.15 0.1 undecidable manual P 115 19.869 118 -0.11 97
IV.SNTG.HHZ. 2021-11-04T20:48:33.76 0.1 negative manual P 65 16.9719 122 0 100
IV.FIU1.HNE. 2021-11-04T20:48:33.37 0.1 undecidable manual P 91 14.6742 126 -0.01 100
IV.ASSB.HHZ. 2021-11-04T20:48:33.83 0.1 undecidable manual P 204 17.9709 120 -0.1 98
IV.FOSV.EHZ. 2021-11-04T20:48:33.01 0.1 positive manual P 4 11.5773 132 0.11 98
IV.ATCC.EHZ. 2021-11-04T20:48:32.76 0.1 undecidable manual P 266 8.88 140 0.24 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:2.4 0.0034500000000000004 0.16 AML other m 2021-11-04T20:48:34.98
IV.ATCC.EHE. ML:2.3 0.0028049999999999998 1.38 AML other m 2021-11-04T20:48:35.90
IV.FOSV.EHE. ML:1.9 0.0008545 0.16 AML other m 2021-11-04T20:48:35.36
IV.FOSV.EHN. ML:1.9 0.000874 0.1 AML other m 2021-11-04T20:48:35.47
IV.ASSB.HHE. ML:2.2 0.00123 1.66 AML other m 2021-11-04T20:48:36.98
IV.SNTG.HHN. ML:1.9 0.0006995 0.12 AML other m 2021-11-04T20:48:37.08
IV.SNTG.HNN. ML:1.9 0.0007005000000000001 0.1 AML other m 2021-11-04T20:48:37.07
IV.ASSB.HHN. ML:2.1 0.0009555 1.14 AML other m 2021-11-04T20:48:37.99
IV.SNTG.HHE. ML:1.7 0.00038950000000000003 1.06 AML other m 2021-11-04T20:48:37.98
IV.MML1.HNN. ML:1.8 0.0005365 0.14 AML other m 2021-11-04T20:48:37.68
IV.MML1.EHN. ML:1.9 0.0005729999999999999 1.02 AML other m 2021-11-04T20:48:38.75
IV.SNTG.HNE. ML:1.7 0.00040149999999999995 1.2 AML other m 2021-11-04T20:48:38.33
IV.MURB.HHE. ML:2.3 0.001375 0.22 AML other m 2021-11-04T20:48:38.24
IV.MURB.HNE. ML:2.2 0.00123 0.24 AML other m 2021-11-04T20:48:38.24
IV.CESI.HNE. ML:1.7 0.0003145 0.56 AML other m 2021-11-04T20:48:38.97
IV.MML1.HNE. ML:1.7 0.0003485 0.14 AML other m 2021-11-04T20:48:38.70
IV.MML1.EHE. ML:1.7 0.00035299999999999996 0.14 AML other m 2021-11-04T20:48:38.70
IV.MURB.HHN. ML:2.1 0.0009975000000000001 1.34 AML other m 2021-11-04T20:48:38.30
IV.MURB.HNN. ML:2.2 0.0010750000000000002 1.36 AML other m 2021-11-04T20:48:38.30
IV.CESI.HHE. ML:1.7 0.00033650000000000005 1.92 AML other m 2021-11-04T20:48:39.97
IV.ATFO.HHE. ML:1.9 0.000451 0.96 AML other m 2021-11-04T20:48:39.50
IV.CESI.HHN. ML:1.6 0.0002455 0.86 AML other m 2021-11-04T20:48:39.10
IV.ATFO.HHN. ML:1.7 0.00032199999999999997 0.3 AML other m 2021-11-04T20:48:39.55
IV.SSFR.HHN. ML:2.1 0.000605 1.32 AML other m 2021-11-04T20:48:40.74
IV.SSFR.HNE. ML:2.3 0.0010105 0.14 AML other m 2021-11-04T20:48:40.16
IV.SSFR.HHE. ML:2.1 0.0007289999999999999 0.16 AML other m 2021-11-04T20:48:40.17
IV.SSFR.HNN. ML:2.2 0.000838 0.32 AML other m 2021-11-04T20:48:40.30
IV.CESI.HNN. ML:1.5 0.00019077125 0.2048 AML other m 2021-11-04T20:48:40.36
IV.FDMO.HHE. ML:1.7 0.00022700000000000002 1.78 AML other m 2021-11-04T20:48:40.09
IV.FDMO.HHN. ML:1.6 0.000194 0.92 AML other m 2021-11-04T20:48:41.62
IV.EL6.EHE. ML:2.0 0.0003945 0.46 AML other m 2021-11-04T20:48:41.75
IV.FRON.EHE. ML:1.7 0.00020150000000000002 1.26 AML other m 2021-11-04T20:48:42.89
IV.EL6.EHN. ML:2.1 0.0005295000000000001 0.34 AML other m 2021-11-04T20:48:42.42
IV.FRON.EHN. ML:1.9 0.00027649999999999994 0.12 AML other m 2021-11-04T20:48:42.56
IV.ARVD.HHN. ML:1.3 0.00007625 1.44 AML other m 2021-11-04T20:48:42.72
IV.ATPI.EHN. ML:1.8 0.0001955 0.72 AML other m 2021-11-04T20:48:43.53
IV.ATPI.EHE. ML:1.7 0.0001805 0.22 AML other m 2021-11-04T20:48:43.53
IV.CSP1.EHN. ML:1.9 0.0003125 1.32 AML other m 2021-11-04T20:48:44.84
IV.ATMI.HHE. ML:1.8 0.000194 0.34 AML other m 2021-11-04T20:48:44.56
IV.CING.HHN. ML:1.8 0.000201 0.26 AML other m 2021-11-04T20:48:44.53
IV.ARVD.HHE. ML:1.3 0.00007944999999999999 0.88 AML other m 2021-11-04T20:48:44.68
IV.CING.HHE. ML:1.7 0.0001675 0.24 AML other m 2021-11-04T20:48:44.57
IV.ATMI.HHN. ML:1.5 0.000107 1.38 AML other m 2021-11-04T20:48:44.17
IV.CSP1.EHE. ML:1.8 0.00025550000000000003 0.94 AML other m 2021-11-04T20:48:44.48
IV.PIEI.HHN. ML:1.8 0.0002205 0.18 AML other m 2021-11-04T20:48:45.34
IV.PIEI.HHE. ML:1.9 0.00027049999999999996 0.26 AML other m 2021-11-04T20:48:45.36
IV.NRCA.HHN. ML:2.1 0.0003195 1.86 AML other m 2021-11-04T20:48:46.00
IV.NRCA.HHE. ML:2.0 0.000293 1.46 AML other m 2021-11-04T20:48:46.84
IV.MOMA.HHE. ML:1.6 0.0001026 0.66 AML other m 2021-11-04T20:48:46.01
IV.APEC.HHE. ML:1.6 0.00011044999999999999 0.7 AML other m 2021-11-04T20:48:46.43
IV.APEC.HHN. ML:1.7 0.00014000000000000001 1.34 AML other m 2021-11-04T20:48:47.07
IV.MOMA.HHN. ML:1.6 0.000123 0.56 AML other m 2021-11-04T20:48:48.79
IV.GAVE.EHE. ML:1.9 0.0001825 0.48 AML other m 2021-11-04T20:48:48.91
IV.GAVE.EHN. ML:2.0 0.0001985 0.64 AML other m 2021-11-04T20:48:48.96
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