Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 28-11-2020 and time 23:04:51 (Italy) in region 7 km N Valfabbrica (PG)

A magnitude ML 1.4 earthquake occured in region: 7 km N Valfabbrica (PG), on

  • 28-11-2020 22:04:51 (UTC)
  • 28-11-2020 23:04:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.22, 12.59 at 10 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
Valfabbrica PG 7 3389 3389
Gubbio PG 15 32216 35605
Gualdo Tadino PG 16 15208 50813
Fossato di Vico PG 16 2840 53653
Assisi PG 17 28299 81952
Sigillo PG 17 2404 84356
Bastia Umbra PG 18 21874 106230
Costacciaro PG 18 1216 107446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Perugia (166134 inhabitants)
31 Km NW of Foligno (57155 inhabitants)
63 Km E of Arezzo (99543 inhabitants)
74 Km N of Terni (111501 inhabitants)
77 Km SW of Fano (60888 inhabitants)
81 Km SW of Pesaro (94582 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
93 Km S of Rimini (147750 inhabitants)
98 Km NE of Viterbo (67173 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 2020-11-28
22:04:51		 43.22 12.59 10 2021-02-26
14:56:11		 Bollettino Sismico Italiano INGV 85602841
Reviewed
Rev100 		ML 1.5 2020-11-28
22:04:51		 43.22 12.58 10 2020-11-28
22:13:06		 Sala Sismica INGV-Roma 85074071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-28 22:04:51 ± 0.03
Latitude 43.22 ± 0.00
Longitude 12.59 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85602841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 243
Semi-minor axis of confidence ellipse (meter) 136
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 240
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54679
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 31
Type of magnitude ML
Reference to an origin 85602841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-21 13:33:53

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 85074071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-28 22:13:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2020-11-28T22:05:08.22 0.3 undecidable manual S 283 0.4649 50 0.27 67
IV.MGAB.HHZ. 2020-11-28T22:05:08.67 0.3 undecidable manual S 228 0.4658 50 0.68 59
IV.MPAG.EHZ. 2020-11-28T22:05:07.33 0.6 undecidable manual S 17 0.4245 50 0.58 42
IV.EL6.EHZ. 2020-11-28T22:05:06.06 0.1 undecidable manual S 74 0.3885 50 0.38 88
IV.FDMO.HHZ. 2020-11-28T22:05:06.57 0.6 undecidable manual S 117 0.4092 50 0.27 45
IV.ARVD.HHZ. 2020-11-28T22:05:05.66 0.6 undecidable manual S 43 0.3759 50 0.34 45
IV.NARO.HHZ. 2020-11-28T22:05:05.65 0.3 undecidable manual S 359 0.3876 50 -0.01 72
IV.FRON.EHZ. 2020-11-28T22:05:03.13 0.6 undecidable manual S 19 0.3112 50 -0.26 46
IV.CESI.HHZ. 2020-11-28T22:05:03.76 0.1 undecidable manual S 133 0.3175 50 0.17 94
IT.FOPC.HGZ. 2020-11-28T22:05:02.14 0.6 undecidable manual S 162 0.2671 50 0.05 48
IV.NRCA.HHZ. 2020-11-28T22:05:02.29 0.1 undecidable manual P 135 0.5468 50 -0.12 90
IV.ATMI.HHZ. 2020-11-28T22:05:01.83 0.6 undecidable manual S 296 0.2581 50 0 49
IV.SNTG.HHZ. 2020-11-28T22:05:01.65 0.6 undecidable manual S 83 0.2581 50 -0.19 47
IV.MGAB.HHZ. 2020-11-28T22:05:01.16 0.3 undecidable manual P 228 0.4658 50 0.14 69
IV.ATPI.EHZ. 2020-11-28T22:05:01.82 0.6 undecidable manual S 329 0.2644 50 -0.2 47
IV.SSFR.HHZ. 2020-11-28T22:05:01.75 0.6 undecidable manual S 33 0.2554 50 0 49
IV.ATBU.EHZ. 2020-11-28T22:05:01.65 0.3 undecidable manual S 353 0.2536 50 -0.06 73
IV.CAFI.HHZ. 2020-11-28T22:05:01.10 0.1 undecidable manual P 283 0.4649 50 0.1 92
IT.GNU.HGE. 2020-11-28T22:05:00.37 3.0 undecidable manual P 0.26 0
IV.ATVO.HHZ. 2020-11-28T22:05:00.21 0.6 undecidable manual S 320 0.2068 114 0.02 49
IV.ATSC.EHZ. 2020-11-28T22:05:00.30 0.6 undecidable manual S 20 0.2131 113 -0.12 48
IV.MOMA.HHE. 2020-11-28T22:05:00.26 0.1 undecidable manual P 182 0.4191 50 0.04 94
IV.TB03.DHZ.01 2020-11-28T22:05:00.58 0.3 undecidable manual S 324 0.2203 112 -0.09 73
IV.MPAG.EHZ. 2020-11-28T22:05:00.06 0.3 undecidable manual P 17 0.4245 50 -0.24 68
IV.ATVA.EHZ. 2020-11-28T22:05:00.23 0.6 undecidable manual S 284 0.2275 50 -0.69 41
IV.FDMO.HHZ. 2020-11-28T22:04:59.89 0.1 positive manual P 117 0.4092 50 -0.15 92
IV.ASSB.HHZ. 2020-11-28T22:04:59.15 0.1 undecidable manual S 164 0.188 116 -0.38 92
IV.ARVD.HHZ. 2020-11-28T22:04:59.41 0.1 negative manual P 43 0.3759 50 -0.07 95
IV.TB01.DHZ.01 2020-11-28T22:04:59.80 0.1 undecidable manual S 325 0.1934 115 0.07 98
IV.NARO.HHZ. 2020-11-28T22:04:59.63 0.1 undecidable manual P 359 0.3876 50 -0.04 95
IV.TB02.DHZ.01 2020-11-28T22:04:59.80 0.6 undecidable manual S 319 0.1961 115 -0.04 49
IV.EL6.EHZ. 2020-11-28T22:04:59.71 0.1 undecidable manual P 74 0.3885 50 0.02 95
IV.ATLO.EHZ. 2020-11-28T22:04:58.55 0.3 undecidable manual S 305 0.161 119 -0.06 74
IV.CESI.HHZ. 2020-11-28T22:04:58.34 0.1 undecidable manual P 133 0.3175 50 -0.14 94
IV.ATFO.HNZ. 2020-11-28T22:04:58.27 0.6 undecidable manual S 355 0.1439 122 0.22 48
IV.FOSV.EHZ. 2020-11-28T22:04:58.18 0.6 undecidable manual S 60 0.1448 122 0.1 49
IV.FRON.EHZ. 2020-11-28T22:04:58.18 0.1 undecidable manual P 19 0.3112 50 -0.18 94
IV.ATBU.EHZ. 2020-11-28T22:04:57.49 0.1 positive manual P 353 0.2536 50 0.1 96
IV.ATMI.HHZ. 2020-11-28T22:04:57.56 0.1 undecidable manual P 296 0.2581 50 0.1 96
IV.SNTG.HHZ. 2020-11-28T22:04:57.40 0.1 undecidable manual P 83 0.2581 50 -0.07 97
IT.FOPC.HGZ. 2020-11-28T22:04:57.31 0.1 undecidable manual P 162 0.2671 50 -0.3 92
IV.ATPI.EHZ. 2020-11-28T22:04:57.50 0.1 undecidable manual P 329 0.2644 50 -0.07 97
IV.SSFR.HHZ. 2020-11-28T22:04:57.33 0.1 undecidable manual P 33 0.2554 50 -0.09 97
IV.TB02.DHZ.01 2020-11-28T22:04:56.21 0.1 positive manual P 319 0.1961 115 -0.1 97
IV.ATVA.EHZ. 2020-11-28T22:04:56.90 0.1 undecidable manual P 284 0.2275 50 -0.04 98
IV.MURB.HHZ. 2020-11-28T22:04:56.00 0.1 undecidable manual S 311 0.0612 146 0.29 96
IV.ATVO.HHZ. 2020-11-28T22:04:56.35 0.1 positive manual P 320 0.2068 114 -0.17 96
IV.ATSC.EHZ. 2020-11-28T22:04:56.58 0.1 undecidable manual P 20 0.2131 113 -0.07 98
IV.TB01.DHZ.01 2020-11-28T22:04:56.19 0.1 positive manual P 325 0.1934 115 -0.06 98
IV.TB03.DHZ.01 2020-11-28T22:04:56.68 0.1 undecidable manual P 324 0.2203 112 -0.11 97
IV.ATCC.EHZ. 2020-11-28T22:04:55.76 0.6 undecidable manual S 135 0.054 149 0.2 49
IV.FOSV.EHZ. 2020-11-28T22:04:55.39 0.1 undecidable manual P 60 0.1448 122 0.09 98
IV.ATLO.EHZ. 2020-11-28T22:04:55.60 0.1 positive manual P 305 0.161 119 0 100
IV.ASSB.HHZ. 2020-11-28T22:04:55.97 0.1 positive manual P 164 0.188 116 -0.17 96
IV.ATFO.HNZ. 2020-11-28T22:04:55.11 0.1 undecidable manual P 355 0.1439 122 -0.17 97
IV.ATCC.EHZ. 2020-11-28T22:04:54.12 0.1 positive manual P 135 0.054 149 0.27 96
IV.MURB.HHZ. 2020-11-28T22:04:54.24 0.1 positive manual P 311 0.0612 146 0.31 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.8 0.00099252025 0.0896 AML other m 2020-11-28T22:04:55.80
IV.ATCC.EHE. ML:1.7 0.00088052015 0.1536 AML other m 2020-11-28T22:04:55.80
IV.MURB.HNN. ML:2 0.0013507575 0.192 AML other m 2020-11-28T22:04:56.18
IV.MURB.HNE. ML:2.2 0.0026673555 0.2304 AML other m 2020-11-28T22:04:56.48
IV.MURB.HHE. ML:2.2 0.0027304615 0.2048 AML other m 2020-11-28T22:04:56.47
IV.MURB.HHN. ML:2.1 0.0019521995 0.1536 AML other m 2020-11-28T22:04:56.48
IV.FOSV.EHE. ML:1 8.8361065E-5 0.2432 AML other m 2020-11-28T22:04:58.40
IV.FOSV.EHN. ML:0.8 6.0770095E-5 0.128 AML other m 2020-11-28T22:04:59.14
IV.ASSB.HHE. ML:1.7 0.00032373105 0.0768 AML other m 2020-11-28T22:04:59.71
IV.ASSB.HHN. ML:1.7 0.00034419765 0.0768 AML other m 2020-11-28T22:04:59.80
IV.ATVO.HHN. ML:0.8 4.3549345E-5 0.1152 AML other m 2020-11-28T22:05:01.56
IV.ATVO.HHE. ML:1 6.3360325E-5 0.1664 AML other m 2020-11-28T22:05:01.80
IV.SNTG.HNE. ML:1.4 0.000139367355 1.4752 AML other m 2020-11-28T22:05:01.92
IV.ATPI.EHE. ML:0.7 2.3535611E-5 1.5904 AML other m 2020-11-28T22:05:01.16
IV.ATPI.EHN. ML:0.8 2.9975595E-5 1.8208 AML other m 2020-11-28T22:05:01.98
IV.SNTG.HNN. ML:1.7 0.000233076705 1.5136 AML other m 2020-11-28T22:05:02.16
IV.SNTG.HHN. ML:1.6 0.00019835975 0.32 AML other m 2020-11-28T22:05:02.16
IV.SNTG.HHE. ML:1.3 0.0001115704 0.2816 AML other m 2020-11-28T22:05:02.30
IV.FRON.EHE. ML:1.5 0.00013127605 0.2944 AML other m 2020-11-28T22:05:03.42
IV.FRON.EHN. ML:1.4 0.000108658655 1.872 AML other m 2020-11-28T22:05:03.05
IV.CESI.HHN. ML:1.1 4.823556E-5 0.1024 AML other m 2020-11-28T22:05:04.10
IV.CESI.HHE. ML:1 4.2243795E-5 0.1408 AML other m 2020-11-28T22:05:04.88
IV.MPAG.EHN. ML:1.3 5.614148E-5 0.5024 AML other m 2020-11-28T22:05:05.62
IV.CESI.HNN. ML:1.6 0.00014999785 1.232 AML other m 2020-11-28T22:05:06.94
IV.FDMO.HHN. ML:1 2.9679645E-5 1.8464 AML other m 2020-11-28T22:05:07.99
IV.NARO.HHE. ML:0.9 2.45384375E-5 0.0768 AML other m 2020-11-28T22:05:07.18
IV.EL6.EHE. ML:1.5 9.469453E-5 0.2048 AML other m 2020-11-28T22:05:07.32
IV.MPAG.EHE. ML:1.1 3.7099555E-5 0.2944 AML other m 2020-11-28T22:05:07.36
IV.EL6.EHN. ML:1.5 0.00010174187 0.4096 AML other m 2020-11-28T22:05:07.76
IV.FDMO.HHE. ML:1.1 4.1151135E-5 0.2048 AML other m 2020-11-28T22:05:07.74
IV.NARO.HHN. ML:0.9 2.5034825E-5 0.256 AML other m 2020-11-28T22:05:07.99
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