Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 01-10-2020 and time 15:26:44 (UTC) in region 9 km NE Valfabbrica (PG)

A magnitude ML 1.5 earthquake occured in region: 9 km NE Valfabbrica (PG), on

  • 01-10-2020 15:26:44 (UTC)
  • 01-10-2020 17:26:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2370, 12.6450 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 9 3389 3389
Gualdo Tadino PG 11 15208 18597
Fossato di Vico PG 12 2840 21437
Sigillo PG 13 2404 23841
Gubbio PG 14 32216 56057
Costacciaro PG 15 1216 57273
Nocera Umbra PG 18 5839 63112
Assisi PG 19 28299 91411
Scheggia e Pascelupo PG 19 1393 92804

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Perugia (166134 inhabitants)
32 Km N of Foligno (57155 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
74 Km SW of Fano (60888 inhabitants)
75 Km N of Terni (111501 inhabitants)
78 Km S of Pesaro (94582 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
92 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 1.5 2020-10-01
15:26:44		 43.2368 12.6448 11 2021-02-26
14:55:58		 Bollettino Sismico Italiano INGV 83758821
Reviewed
Rev100 		ML 1.6 2020-10-01
15:26:44		 43.2462 12.6378 12 2020-10-01
15:38:09		 Sala Sismica INGV-Roma 83419121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-01 15:26:44 ± 0.04
Latitude 43.2368 ± 0.0027
Longitude 12.6448 ± 0.0037
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 83758821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 234
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.05216
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 83758821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-13 17:06:09

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 83419121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-01 15:38:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2020-10-01T15:27:03.04 0.6 undecidable manual S 230 56.1993 50 0.74 39
IV.MPAG.EHZ. 2020-10-01T15:26:59.53 0.6 undecidable manual S 12 44.5221 50 0.35 45
IV.EL6.EHZ. 2020-10-01T15:26:57.86 0.3 undecidable manual S 74 38.3283 50 0.34 68
IV.CESI.HHE. 2020-10-01T15:26:56.33 0.3 undecidable manual S 141 33.2445 50 0.15 72
IV.MMO1.EHZ. 2020-10-01T15:26:56.48 0.3 undecidable manual P 124 66.7776 50 -0.01 69
IV.ATPC.HHE. 2020-10-01T15:26:55.80 0.3 undecidable manual S 331 31.0467 50 0.22 71
IV.MGAB.HHZ. 2020-10-01T15:26:55.42 0.3 undecidable manual P 230 56.1993 50 0.56 62
IV.ATPI.EHE. 2020-10-01T15:26:55.53 0.3 undecidable manual S 321 30.747 50 0.02 74
IV.MML1.HNE. 2020-10-01T15:26:55.29 0.3 undecidable manual S 117 29.748 50 0.04 74
IV.FRON.EHZ. 2020-10-01T15:26:55.61 0.3 undecidable manual S 12 31.8459 50 -0.19 71
IV.ATBU.EHZ. 2020-10-01T15:26:55.17 0.3 undecidable manual S 344 27.6501 50 0.5 67
IV.ATVA.EHE. 2020-10-01T15:26:54.70 0.3 undecidable manual S 279 29.4483 50 -0.46 67
IV.MOMA.HNZ. 2020-10-01T15:26:54.64 1.0 undecidable manual P 187 48.4182 50 0.97 18
IV.TB03.DHZ.01 2020-10-01T15:26:54.53 0.3 undecidable manual S 314 26.2515 50 0.21 72
IV.ATVO.HHZ. 2020-10-01T15:26:53.76 0.3 undecidable manual S 310 25.0527 50 -0.24 71
IV.SSFR.HHZ. 2020-10-01T15:26:53.60 0.3 undecidable manual S 27 24.753 50 -0.31 70
IV.TB01.DHZ.01 2020-10-01T15:26:53.46 0.3 undecidable manual S 314 23.2545 50 -0.06 74
IV.MPAG.EHZ. 2020-10-01T15:26:53.04 1.0 undecidable manual P 12 44.5221 50 -0.02 24
IT.MTCL.HGZ. 2020-10-01T15:26:52.17 1.0 undecidable manual P 133 39.3273 50 -0.1 24
IV.EL6.EHZ. 2020-10-01T15:26:52.15 0.1 undecidable manual P 74 38.3283 50 0.04 97
IV.ASSB.HHN. 2020-10-01T15:26:52.55 0.3 undecidable manual S 177 21.5673 116 -0.48 68
IV.ATLO.EHE. 2020-10-01T15:26:52.69 0.3 undecidable manual S 294 21.0678 116 -0.17 73
IV.ATSC.EHE. 2020-10-01T15:26:52.60 0.3 undecidable manual S 9 21.0678 116 -0.25 72
IV.ARVD.HHE. 2020-10-01T15:26:51.95 0.1 undecidable manual P 39 37.5291 50 -0.05 97
IV.ATPC.HHE. 2020-10-01T15:26:51.16 0.1 undecidable manual P 331 31.0467 50 0.17 95
IV.CESI.HHE. 2020-10-01T15:26:51.14 0.1 undecidable manual P 141 33.2445 50 -0.19 95
IV.ATFO.HHZ. 2020-10-01T15:26:51.30 0.3 undecidable manual S 338 15.5733 124 0.09 75
IV.ATBU.EHZ. 2020-10-01T15:26:50.72 0.1 undecidable manual P 344 27.6501 50 0.25 94
IV.ATVA.EHE. 2020-10-01T15:26:50.70 0.1 undecidable manual P 279 29.4483 50 -0.04 98
IV.TB03.DHZ.01 2020-10-01T15:26:50.18 0.1 undecidable manual P 314 26.2515 50 -0.08 98
IV.ATMI.HHZ. 2020-10-01T15:26:50.38 0.6 undecidable manual P 290 32.3454 50 -0.81 39
IV.FOSV.HNE. 2020-10-01T15:26:50.08 0.3 undecidable manual S 56 11.3775 133 0.01 76
IV.ATPI.EHE. 2020-10-01T15:26:50.91 0.1 undecidable manual P 321 30.747 50 -0.04 98
IV.MML1.HNE. 2020-10-01T15:26:50.55 0.1 undecidable manual P 117 29.748 50 -0.24 94
IV.FRON.EHZ. 2020-10-01T15:26:50.96 0.1 undecidable manual P 12 31.8459 50 -0.15 96
IV.TB01.DHZ.01 2020-10-01T15:26:49.62 0.1 undecidable manual P 314 23.2545 50 -0.18 97
IV.ATLO.EHE. 2020-10-01T15:26:49.28 0.1 undecidable manual P 294 21.0678 116 -0.14 98
IV.ATSC.EHE. 2020-10-01T15:26:49.31 0.1 undecidable manual P 9 21.0678 116 -0.1 98
IV.ATVO.HHZ. 2020-10-01T15:26:49.86 0.1 undecidable manual P 310 25.0527 50 -0.22 96
IV.MURB.HHZ. 2020-10-01T15:26:49.96 0.3 undecidable manual S 287 10.1787 136 0.2 74
IV.SSFR.HHZ. 2020-10-01T15:26:49.98 0.1 undecidable manual P 27 24.753 50 -0.04 99
IV.ASSB.HHN. 2020-10-01T15:26:49.33 0.1 undecidable manual P 177 21.5673 116 -0.18 97
IV.ATFO.HHZ. 2020-10-01T15:26:48.62 0.1 undecidable manual P 338 15.5733 124 0.16 98
IV.ATCC.EHE. 2020-10-01T15:26:48.94 0.3 undecidable manual S 184 5.7942 151 0.1 76
IV.ATCC.EHE. 2020-10-01T15:26:47.36 0.1 undecidable manual P 184 5.7942 151 0.26 98
IV.FOSV.HNE. 2020-10-01T15:26:47.91 0.1 undecidable manual P 56 11.3775 133 0.11 100
IV.MURB.HHZ. 2020-10-01T15:26:47.87 0.1 undecidable manual P 287 10.1787 136 0.25 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:1.9 0.00103 0.26 AML other m 2020-10-01T15:26:50.36
IV.MURB.HNE. ML:1.9 0.001038 0.24 AML other m 2020-10-01T15:26:50.49
IV.MURB.HHN. ML:1.7 0.0006975 0.2 AML other m 2020-10-01T15:26:50.46
IV.MURB.HNN. ML:1.6 0.000501 0.54 AML other m 2020-10-01T15:26:50.45
IV.ATFO.HHE. ML:1.4 0.0002195 0.8 AML other m 2020-10-01T15:26:51.25
IV.ATFO.HHN. ML:1.4 0.0002185 1.02 AML other m 2020-10-01T15:26:52.54
IV.ASSB.HHN. ML:1.5 0.00022399999999999997 0.18 AML other m 2020-10-01T15:26:53.04
IV.ASSB.HHE. ML:1.6 0.000262 1.16 AML other m 2020-10-01T15:26:53.89
IV.SSFR.HHE. ML:1.7 0.0002805 0.18 AML other m 2020-10-01T15:26:53.90
IV.ATVO.HHN. ML:0.7 0.000029999999999999997 1.02 AML other m 2020-10-01T15:26:53.98
IV.SSFR.HHN. ML:1.6 0.0002315 0.6 AML other m 2020-10-01T15:26:54.20
IV.ATVO.HHE. ML:0.8 0.0000387 0.86 AML other m 2020-10-01T15:26:55.96
IV.FRON.EHE. ML:1.2 0.0000775 0.32 AML other m 2020-10-01T15:26:55.84
IV.FRON.EHN. ML:1.3 0.00009584999999999999 0.66 AML other m 2020-10-01T15:26:56.09
IV.EL6.EHE. ML:1.5 0.00011094999999999999 0.3 AML other m 2020-10-01T15:26:58.45
IV.EL6.EHN. ML:1.6 0.000161 0.32 AML other m 2020-10-01T15:26:58.66
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