Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 26-07-2020 and time 16:06:09 (UTC) in region 5 km W Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 5 km W Norcia (PG), on

  • 26-07-2020 16:06:09 (UTC)
  • 26-07-2020 18:06:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8140, 13.0340 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
Norcia PG 5 4957 4957
Preci PG 7 724 5681
Cerreto di Spoleto PG 10 1075 6756
Cascia PG 11 3217 9973
Sellano PG 12 1079 11052
Castelsantangelo sul Nera MC 13 281 11333
Poggiodomo PG 14 117 11450
Visso MC 14 1107 12557
Vallo di Nera PG 15 364 12921
Ussita MC 17 444 13365
Sant'Anatolia di Narco PG 18 564 13929
Monteleone di Spoleto PG 19 599 14528
Scheggino PG 20 461 14989

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
62 Km SE of Perugia (166134 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km W of Montesilvano (53738 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 1.6 2020-07-26
16:06:09		 42.8137 13.0342 10 2020-11-19
12:36:57		 Bollettino Sismico Italiano INGV 81838281
Reviewed
Rev100 		ML 1.6 2020-07-26
16:06:09		 42.8082 13.0365 9 2020-07-26
16:11:29		 Sala Sismica INGV-Roma 81375041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-26 16:06:09 ± 0.04
Latitude 42.8137 ± 0.0018
Longitude 13.0342 ± 0.0037
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 81838281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 213
Semi-minor axis of confidence ellipse (meter) 201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.68708
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 81375041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-26 16:11:29

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 41
Type of magnitude ML
Reference to an origin 81838281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-10 07:29:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2020-07-26T16:06:27.03 0.6 undecidable manual S 322 52.2033 50 0.43 44
IV.TERO.HHZ. 2020-07-26T16:06:26.19 0.6 undecidable manual S 114 51.0156 50 -0.11 47
IV.MF5.EHZ. 2020-07-26T16:06:24.10 0.6 undecidable manual S 61 39.627 50 0.85 38
IV.GUMA.HHZ. 2020-07-26T16:06:23.00 0.3 undecidable manual S 41 36.9297 50 0.47 66
IV.MOMA.HHZ. 2020-07-26T16:06:23.09 0.6 undecidable manual S 269 37.7289 50 0.33 46
IV.CESX.HHZ. 2020-07-26T16:06:23.98 0.6 undecidable manual S 238 43.0236 50 -0.17 47
IV.ASSB.HHZ. 2020-07-26T16:06:23.16 0.6 undecidable manual S 310 39.7269 50 -0.11 48
IV.ARVD.HHZ. 2020-07-26T16:06:23.76 0.6 undecidable manual P 354 76.2681 50 0.49 41
IV.PF6.EHN. 2020-07-26T16:06:22.79 0.6 undecidable manual S 20 38.2284 50 -0.1 48
IV.RM33.EHZ. 2020-07-26T16:06:22.43 0.3 undecidable manual S 156 36.8298 50 -0.09 72
IT.GNU.HGE. 2020-07-26T16:06:22.98 0.6 undecidable manual S 269 37.7289 50 0.22 47
IV.CSP1.EHE. 2020-07-26T16:06:21.61 0.3 undecidable manual S 24 33.8439 50 -0.1 72
IV.FIAM.HHZ. 2020-07-26T16:06:21.24 0.6 undecidable manual P 174 60.8946 50 0.34 44
IV.MML1.HNE. 2020-07-26T16:06:21.40 0.3 undecidable manual S 351 33.6441 50 -0.26 70
IV.ARRO.EHZ. 2020-07-26T16:06:21.19 0.6 undecidable manual S 220 33.9438 50 -0.56 43
IV.MURB.HHZ. 2020-07-26T16:06:21.76 0.3 undecidable manual P 321 64.7907 50 0.27 66
IV.SMA1.EHZ. 2020-07-26T16:06:21.25 0.6 undecidable manual S 130 31.8459 50 0.07 49
IV.EL6.EHZ. 2020-07-26T16:06:20.21 0.1 undecidable manual P 5 57.498 50 -0.16 91
IV.MTRA.EHZ. 2020-07-26T16:06:20.63 0.6 undecidable manual S 102 30.1476 50 -0.1 49
IV.T1299.HNN. 2020-07-26T16:06:20.37 0.3 undecidable manual S 134 28.3494 50 0.12 73
IV.TERO.HHZ. 2020-07-26T16:06:19.12 0.1 undecidable manual P 114 51.0156 50 -0.25 91
IV.MMO1.EHZ. 2020-07-26T16:06:19.00 0.3 undecidable manual S 68 25.6521 111 -0.42 69
IV.ATCC.EHZ. 2020-07-26T16:06:19.53 0.1 undecidable manual P 322 52.2033 50 -0.02 95
IV.CESI.HHZ. 2020-07-26T16:06:18.52 0.6 undecidable manual S 334 23.6541 112 -0.28 47
IV.FDMO.HHZ. 2020-07-26T16:06:18.90 0.6 undecidable manual S 10 25.0527 111 -0.35 46
IV.LNSS.HHZ. 2020-07-26T16:06:18.52 0.6 undecidable manual S 179 23.3544 113 -0.18 48
IV.CESX.HHZ. 2020-07-26T16:06:17.56 0.6 undecidable manual P 238 43.0236 50 -0.57 42
IV.RM33.EHZ. 2020-07-26T16:06:17.01 0.1 undecidable manual P 156 36.8298 50 -0.18 94
IV.ASSB.HHZ. 2020-07-26T16:06:17.43 0.1 negative manual P 310 39.7269 50 -0.2 94
IV.PF6.EHN. 2020-07-26T16:06:17.15 0.1 undecidable manual P 20 38.2284 50 -0.25 93
IV.MF5.EHZ. 2020-07-26T16:06:17.93 0.6 undecidable manual P 61 39.627 50 0.31 46
IV.GUMA.HHZ. 2020-07-26T16:06:17.31 0.1 undecidable manual P 41 36.9297 50 0.11 96
IT.MTCL.HGZ. 2020-07-26T16:06:17.36 0.3 undecidable manual S 352 20.1687 116 -0.33 71
IT.GNU.HGE. 2020-07-26T16:06:17.65 0.3 undecidable manual P 269 37.7289 50 0.32 69
IV.MOMA.HHZ. 2020-07-26T16:06:17.44 0.1 undecidable manual P 269 37.7289 50 0.11 96
IV.MTRA.EHZ. 2020-07-26T16:06:16.02 0.1 negative manual P 102 30.1476 50 -0.14 96
IV.FEMA.HNE. 2020-07-26T16:06:16.83 0.3 undecidable manual S 4 16.5723 120 0.26 72
IV.SMA1.EHZ. 2020-07-26T16:06:16.42 0.1 undecidable manual P 130 31.8459 50 0 99
IV.CSP1.EHE. 2020-07-26T16:06:16.58 0.1 positive manual P 24 33.8439 50 -0.14 96
IV.MC2.EHZ. 2020-07-26T16:06:16.84 0.6 undecidable manual S 49 16.6722 120 0.25 48
IV.MML1.HNE. 2020-07-26T16:06:16.52 0.1 undecidable manual P 351 33.6441 50 -0.18 95
IV.GAVE.EHZ. 2020-07-26T16:06:16.94 0.6 undecidable manual S 220 17.6712 119 0.04 50
IV.ARRO.EHZ. 2020-07-26T16:06:16.71 0.1 undecidable manual P 220 33.9438 50 -0.04 98
IV.FDMO.HHZ. 2020-07-26T16:06:15.19 0.1 positive manual P 10 25.0527 111 -0.11 98
IV.MMO1.EHZ. 2020-07-26T16:06:15.32 0.1 negative manual P 68 25.6521 111 -0.09 98
IV.LNSS.HHZ. 2020-07-26T16:06:15.05 0.1 positive manual P 179 23.3544 113 0.06 99
IV.CESI.HHZ. 2020-07-26T16:06:15.05 0.1 undecidable manual P 334 23.6541 112 0.01 100
IV.T1299.HNN. 2020-07-26T16:06:15.94 0.1 negative manual P 134 28.3494 50 0.06 98
IV.GAVE.EHZ. 2020-07-26T16:06:14.22 0.1 positive manual P 220 17.6712 119 0.27 96
IT.MTCL.HGZ. 2020-07-26T16:06:14.40 0.3 undecidable manual P 352 20.1687 116 0 76
IV.MC2.EHZ. 2020-07-26T16:06:14.04 0.1 positive manual P 49 16.6722 120 0.27 96
IV.NRCA.HNZ. 2020-07-26T16:06:13.98 0.3 undecidable manual S 71 6.8931 145 -0.06 76
IV.FEMA.HNE. 2020-07-26T16:06:13.92 0.3 undecidable manual P 4 16.5723 120 0.17 73
IV.NRCA.HNZ. 2020-07-26T16:06:12.53 0.1 negative manual P 71 6.8931 145 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:1.9 0.00029749999999999997 0.52 AML other m 2020-07-26T16:06:23.33
IV.NRCA.HHN. ML:2.7 0.007515000000000001 0.1 AML other m 2020-07-26T16:06:14.11
IV.NRCA.HNE. ML:2.3 0.0028799999999999997 0.16 AML other m 2020-07-26T16:06:14.22
IV.NRCA.HHE. ML:2.3 0.00333 1.18 AML other m 2020-07-26T16:06:14.22
IV.GAVE.EHE. ML:1.9 0.0006919999999999999 1.18 AML other m 2020-07-26T16:06:17.25
IV.GAVE.EHN. ML:1.9 0.000711 0.3 AML other m 2020-07-26T16:06:17.27
IV.LNSS.HHE. ML:2.0 0.0006450000000000001 0.12 AML other m 2020-07-26T16:06:18.96
IV.CESI.HHE. ML:1.9 0.0004615 0.16 AML other m 2020-07-26T16:06:18.87
IV.CESI.HHN. ML:2.2 0.0009599999999999999 0.24 AML other m 2020-07-26T16:06:18.85
IV.LNSS.HHN. ML:2.0 0.000731 0.16 AML other m 2020-07-26T16:06:19.19
IV.FDMO.HHE. ML:1.6 0.000227 0.62 AML other m 2020-07-26T16:06:19.06
IV.FDMO.HHN. ML:1.6 0.0002505 0.16 AML other m 2020-07-26T16:06:19.38
IV.SMA1.EHN. ML:1.7 0.00021750000000000003 0.24 AML other m 2020-07-26T16:06:22.31
IV.ARRO.EHE. ML:1.6 0.000158 0.16 AML other m 2020-07-26T16:06:22.68
IV.ARRO.EHN. ML:1.4 0.0001095 0.18 AML other m 2020-07-26T16:06:22.85
IV.MTRA.EHE. ML:1.5 0.0001575 0.48 AML other m 2020-07-26T16:06:23.25
IV.MOMA.HHN. ML:1.6 0.0001495 0.18 AML other m 2020-07-26T16:06:23.30
IV.RM33.EHN. ML:1.6 0.00014150000000000002 0.16 AML other m 2020-07-26T16:06:23.26
IV.ASSB.HHN. ML:1.5 0.00010925000000000001 0.46 AML other m 2020-07-26T16:06:23.46
IV.MTRA.EHN. ML:1.5 0.0001395 0.28 AML other m 2020-07-26T16:06:23.61
IV.RM33.EHE. ML:1.6 0.0001685 0.56 AML other m 2020-07-26T16:06:23.51
IV.MOMA.HHE. ML:1.7 0.00017299999999999998 1.38 AML other m 2020-07-26T16:06:23.78
IV.GUMA.HHN. ML:1.8 0.0002445 0.64 AML other m 2020-07-26T16:06:23.47
IV.ASSB.HHE. ML:1.5 0.00011219999999999999 0.5 AML other m 2020-07-26T16:06:23.80
IV.SMA1.EHE. ML:1.6 0.00020150000000000002 0.6 AML other m 2020-07-26T16:06:24.58
IV.MF5.EHN. ML:1.6 0.0001472 0.32 AML other m 2020-07-26T16:06:24.52
IV.MF5.EHE. ML:1.5 0.00011295 0.52 AML other m 2020-07-26T16:06:25.57
IV.CESX.HHE. ML:1.5 0.0001088 1.02 AML other m 2020-07-26T16:06:25.48
IV.CESX.HHN. ML:1.5 0.00010350000000000001 0.22 AML other m 2020-07-26T16:06:25.60
IV.TERO.HHN. ML:1.2 0.000046450000000000004 0.12 AML other m 2020-07-26T16:06:27.21
IV.TERO.HHE. ML:1.2 0.0000415 0.48 AML other m 2020-07-26T16:06:27.31
IV.ATCC.EHE. ML:1.6 0.00009495 0.26 AML other m 2020-07-26T16:06:27.36
IV.ATCC.EHN. ML:1.7 0.00011649999999999999 0.62 AML other m 2020-07-26T16:06:27.43
IV.FIAM.HHE. ML:0.9 0.000017099999999999996 1.3 AML other m 2020-07-26T16:06:31.06
IV.FIAM.HHN. ML:1.0 0.000018599999999999998 0.26 AML other m 2020-07-26T16:06:33.69
IV.MURB.HHE. ML:1.8 0.00011015 1.06 AML other m 2020-07-26T16:06:34.93
IV.MURB.HHN. ML:1.7 0.0000986 0.26 AML other m 2020-07-26T16:06:35.11
IV.ARVD.HHN. ML:1.1 0.00002 0.16 AML other m 2020-07-26T16:06:35.20
IV.ARVD.HHE. ML:1.2 0.000026450000000000003 0.92 AML other m 2020-07-26T16:06:35.48
IV.GAVE.HNE. ML:1.9 0.00063217495 0.3328 AML other m 2020-07-26T16:06:17.93
IV.GAVE.HNN. ML:1.4 0.00020692395000000002 0.128 AML other m 2020-07-26T16:06:17.27
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