Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 05-09-2020 and time 01:29:33 (Italy) in region 2 km SE Norcia (PG)

A magnitude ML 2.2 earthquake occured in region: 2 km SE Norcia (PG), on

  • 04-09-2020 23:29:33 (UTC)
  • 05-09-2020 01:29:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7800, 13.1140 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
Norcia PG 2 4957 4957
Cascia PG 11 3217 8174
Preci PG 13 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Accumoli RI 14 667 9846
Arquata del Tronto AP 15 1178 11024
Poggiodomo PG 16 117 11141
Cerreto di Spoleto PG 17 1075 12216
Visso MC 17 1107 13323
Ussita MC 18 444 13767
Cittareale RI 18 482 14249
Montegallo AP 19 523 14772
Monteleone di Spoleto PG 19 599 15371
Sellano PG 20 1079 16450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km W of Chieti (51815 inhabitants)
99 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 2.2 2020-09-04
23:29:33		 42.7803 13.1143 11 2021-02-26
14:56:05		 Bollettino Sismico Italiano INGV 84693621
Reviewed
Rev100 		ML 2.4 2020-09-04
23:29:33		 42.7812 13.1153 11 2020-09-04
23:51:00		 Sala Sismica INGV-Roma 82631211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-04 23:29:33 ± 0.03
Latitude 42.7803 ± 0.0018
Longitude 13.1143 ± 0.0025
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84693621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 62
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
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) 67
Number of associated phases, regardless of their use for origin computation 68
Number of defining phases 51
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) 0.85526
Number of stations at which the event was observed 46
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.7
Num. used stations 37
Type of magnitude ML
Reference to an origin 84693621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-13 10:34:34

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 23
Type of magnitude ML
Reference to an origin 82631211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-04 23:51:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.FUSIO.HHZ. 2020-09-04T23:31:18.93 3.0 undecidable manual Sn 8.47 0
CR.STON.BHZ. 2020-09-04T23:30:22.16 3.0 undecidable manual Pn 8.88 0
IV.ZOVE.EHZ. 2020-09-04T23:29:55.44 3.0 undecidable manual Pn 1.91 0
IV.RMP.HHZ. 2020-09-04T23:29:53.58 3.0 positive manual Pg 4.26 0
GU.POPM.HHZ. 2020-09-04T23:29:52.72 3.0 negative manual P 5.69 0
IV.COR1.HNZ. 2020-09-04T23:29:48.97 0.3 undecidable manual P 354 94.9383 90 -0.18 63
IV.ASSB.HHZ. 2020-09-04T23:29:48.67 0.1 undecidable manual S 308 47.1195 90 0.55 84
IV.TERO.HHZ. 2020-09-04T23:29:47.09 0.3 undecidable manual S 113 43.623 90 -0.1 71
IV.FRON.EHZ. 2020-09-04T23:29:47.85 0.1 undecidable manual P 339 87.6456 90 -0.17 85
IV.ATSC.EHZ. 2020-09-04T23:29:46.75 0.1 undecidable manual P 334 79.365 90 0 90
IV.SAP2.EHN. 2020-09-04T23:29:46.75 0.3 undecidable manual S 33 42.0246 90 -0.03 72
IV.SSFR.HNZ. 2020-09-04T23:29:46.42 0.1 undecidable manual P 340 77.5668 90 -0.05 89
IV.CAMP.HHE. 2020-09-04T23:29:45.13 0.1 undecidable manual S 138 36.2415 91 -0.1 96
IV.ARRO.EHZ. 2020-09-04T23:29:45.26 0.1 undecidable manual S 232 36.1416 91 0.05 96
IV.MF5.EHN. 2020-09-04T23:29:45.84 0.3 undecidable manual S 51 36.3414 91 0.6 63
IV.GUMA.HHZ. 2020-09-04T23:29:45.79 0.1 undecidable manual S 30 36.1416 91 0.6 84
IV.MML1.HNE. 2020-09-04T23:29:45.88 0.1 undecidable manual S 343 38.7279 91 -0.01 96
IV.RM33.EHZ. 2020-09-04T23:29:44.00 0.1 undecidable manual S 165 31.2465 91 0.11 95
IV.CSP1.EHZ. 2020-09-04T23:29:44.89 0.1 undecidable manual S 12 35.3424 91 -0.1 95
IV.FNVD.HHZ. 2020-09-04T23:29:44.69 3.0 positive manual P 0.57 0
IV.CESI.HHZ. 2020-09-04T23:29:43.56 0.1 undecidable manual S 326 30.1476 91 -0.05 97
IV.SSP9.EHZ. 2020-09-04T23:29:43.52 3.0 undecidable manual S 3.07 0
IT.MTCL.HGN. 2020-09-04T23:29:42.19 0.1 undecidable manual S 339 25.4523 91 -0.17 96
IV.FDMO.HHZ. 2020-09-04T23:29:42.90 0.1 undecidable manual S 356 28.4493 91 -0.27 93
IV.CRE.HHZ. 2020-09-04T23:29:42.25 3.0 undecidable manual S -2.43 0
IV.MMO1.EHZ. 2020-09-04T23:29:41.16 0.1 undecidable manual S 53 21.7671 92 -0.21 95
IV.SEI.HHZ. 2020-09-04T23:29:41.35 0.1 undecidable manual P -0.03 0
IV.GAVE.EHZ. 2020-09-04T23:29:41.08 0.1 undecidable manual S 241 20.4684 92 0.06 98
IV.SMA1.EHZ. 2020-09-04T23:29:41.95 0.1 undecidable manual S 133 24.5532 91 -0.15 97
IV.ASSB.HHZ. 2020-09-04T23:29:41.68 0.1 undecidable manual P 308 47.1195 90 -0.1 93
IV.T1299.HNE. 2020-09-04T23:29:41.51 0.1 undecidable manual S 140 21.2676 92 0.28 94
IV.TERO.HHZ. 2020-09-04T23:29:41.19 0.3 undecidable manual P 113 43.623 90 -0.05 71
IV.MNTT.EHZ. 2020-09-04T23:29:41.54 0.3 undecidable manual P 51 50.0166 90 -0.69 59
IV.MTRA.EHZ. 2020-09-04T23:29:41.48 0.1 undecidable manual S 96 23.1546 91 -0.26 95
IV.SAP2.EHN. 2020-09-04T23:29:41.33 0.3 undecidable manual P 33 42.0246 90 0.33 67
IV.LNSS.HHZ. 2020-09-04T23:29:41.08 0.1 undecidable manual S 197 20.5683 92 0.02 99
IV.RUFI.EHZ. 2020-09-04T23:29:41.18 3.0 negative manual P 2.06 0
IV.FEMA.HNN. 2020-09-04T23:29:41.17 0.3 undecidable manual S 345 20.868 92 0.05 74
IV.MML1.HNE. 2020-09-04T23:29:40.42 0.1 undecidable manual P 343 38.7279 91 -0.07 95
IV.VISG.HHZ. 2020-09-04T23:29:40.29 3.0 undecidable manual P -1.16 0
IV.PF6.EHE. 2020-09-04T23:29:40.53 0.3 undecidable manual P 9 40.2264 91 -0.18 70
IV.ARRO.EHZ. 2020-09-04T23:29:40.21 0.1 undecidable manual P 232 36.1416 91 0.12 95
IV.MF5.EHN. 2020-09-04T23:29:40.32 0.3 undecidable manual P 51 36.3414 91 0.21 70
IV.GUMA.HHZ. 2020-09-04T23:29:40.28 0.1 undecidable manual P 30 36.1416 91 0.2 93
IV.CSP1.EHZ. 2020-09-04T23:29:39.85 0.1 negative manual P 12 35.3424 91 -0.11 95
IV.CESI.HHZ. 2020-09-04T23:29:39.07 0.1 negative manual P 326 30.1476 91 -0.1 96
IV.CAMP.HHE. 2020-09-04T23:29:39.92 0.1 undecidable manual P 138 36.2415 91 -0.19 94
IV.RINC.HHZ. 2020-09-04T23:29:39.85 3.0 positive manual Pn 1.52 0
IV.RM33.EHZ. 2020-09-04T23:29:39.31 0.1 undecidable manual P 165 31.2465 91 -0.02 98
IV.MC2.EHZ. 2020-09-04T23:29:39.98 0.1 undecidable manual S 23 15.7731 95 0.21 97
IV.IMOL.EHZ. 2020-09-04T23:29:39.03 3.0 positive manual P -1.19 0
IV.ASQU.HHZ. 2020-09-04T23:29:39.72 3.0 positive manual P 3.8 0
IV.MTRA.EHZ. 2020-09-04T23:29:38.19 0.1 undecidable manual P 96 23.1546 91 0.1 97
IV.BLLA.EHZ. 2020-09-04T23:29:38.79 3.0 undecidable manual S -2.94 0
IT.MTCL.HGN. 2020-09-04T23:29:38.26 0.1 undecidable manual P 339 25.4523 91 -0.19 95
IV.SMA1.EHZ. 2020-09-04T23:29:38.31 0.1 undecidable manual P 133 24.5532 91 0.01 99
IV.FDMO.HHZ. 2020-09-04T23:29:38.75 0.1 negative manual P 356 28.4493 91 -0.16 95
IV.MC2.EHZ. 2020-09-04T23:29:37.04 0.1 negative manual P 23 15.7731 95 0.09 99
IV.LNSS.HHZ. 2020-09-04T23:29:37.75 0.1 positive manual P 197 20.5683 92 0.05 99
IV.FEMA.HNN. 2020-09-04T23:29:37.67 0.3 undecidable manual P 345 20.868 92 -0.06 74
IV.MMO1.EHZ. 2020-09-04T23:29:37.80 0.1 positive manual P 53 21.7671 92 -0.08 98
IV.SFI.EHZ. 2020-09-04T23:29:37.70 3.0 negative manual P 1.98 0
IV.GAVE.EHZ. 2020-09-04T23:29:37.71 0.1 positive manual P 241 20.4684 92 0.04 99
IV.NRCA.HNZ. 2020-09-04T23:29:37.44 0.1 undecidable manual S 360 5.8941 143 -0.07 100
IV.T1299.HNE. 2020-09-04T23:29:37.99 0.1 negative manual P 140 21.2676 92 0.2 95
IV.BRIS.HHZ. 2020-09-04T23:29:36.62 3.0 negative manual P -2.27 0
IV.NRCA.HNZ. 2020-09-04T23:29:35.79 0.1 negative manual P 360 5.8941 143 0.14 100
IV.BRSN.HNZ. 2020-09-04T23:29:35.61 3.0 positive manual P -1.4 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.2 0.0021550000000000002 0.08 AML other m 2020-09-04T23:29:37.56
IV.NRCA.HHN. ML:2.2 0.00252 0.08 AML other m 2020-09-04T23:29:37.56
IV.NRCA.HHE. ML:2.0 0.00148 0.18 AML other m 2020-09-04T23:29:37.65
IV.NRCA.HNE. ML:2.0 0.00152 0.08 AML other m 2020-09-04T23:29:37.56
IV.BRSN.EHN. ML:3.9 0.002785 1.5 AML other m 2020-09-04T23:29:39.13
IV.BRSN.HNN. ML:3.9 0.0028200000000000005 1.5 AML other m 2020-09-04T23:29:39.13
IV.BRSN.EHE. ML:3.9 0.0028599999999999997 0.3 AML other m 2020-09-04T23:29:40.01
IV.BRSN.HNE. ML:3.9 0.0029699999999999996 0.32 AML other m 2020-09-04T23:29:40.01
IV.BRIS.HHE. ML:2.8 0.00019212335 0.2816 AML other m 2020-09-04T23:29:41.01
IV.BRIS.HHN. ML:2.9 0.0002760534 0.256 AML other m 2020-09-04T23:29:41.20
IV.GAVE.EHN. ML:1.5 0.0002035 1.06 AML other m 2020-09-04T23:29:41.54
IV.GAVE.EHE. ML:1.4 0.00017184735000000002 0.128 AML other m 2020-09-04T23:29:41.54
IV.LNSS.HHE. ML:1.5 0.000214 0.28 AML other m 2020-09-04T23:29:42.15
IV.LNSS.HHN. ML:1.4 0.000161 0.2 AML other m 2020-09-04T23:29:42.08
IV.MTRA.EHE. ML:1.0 0.00006685000000000001 0.8 AML other m 2020-09-04T23:29:42.46
IV.MTRA.EHN. ML:1.0 0.000053419145 0.1408 AML other m 2020-09-04T23:29:42.45
IV.SMA1.EHE. ML:1.4 0.0001365 0.34 AML other m 2020-09-04T23:29:43.29
IV.SFI.EHN. ML:2.6 0.000192 0.24 AML other m 2020-09-04T23:29:43.48
IV.FDMO.HHE. ML:1.0 0.000045534279999999994 0.7424 AML other m 2020-09-04T23:29:43.51
IV.SFI.EHE. ML:2.5 0.00015441925000000002 0.2176 AML other m 2020-09-04T23:29:43.53
IV.FDMO.HHN. ML:1.0 0.0000434 0.54 AML other m 2020-09-04T23:29:44.08
IV.CESI.HHE. ML:1.0 0.00004375 0.24 AML other m 2020-09-04T23:29:44.32
IV.RM33.EHE. ML:1.2 0.00006379999999999999 0.3 AML other m 2020-09-04T23:29:44.72
IV.RM33.EHN. ML:1.3 0.00008444999999999999 0.3 AML other m 2020-09-04T23:29:44.82
IV.CESI.HHN. ML:1.1 0.000053 0.54 AML other m 2020-09-04T23:29:45.27
IV.BLLA.EHE. ML:2.9 0.00033350000000000003 0.96 AML other m 2020-09-04T23:29:46.82
IV.TERO.HHE. ML:1.2 0.00005705 0.48 AML other m 2020-09-04T23:29:47.75
IV.RINC.HHE. ML:2.6 0.00014749999999999998 0.34 AML other m 2020-09-04T23:29:47.82
IV.ASQU.HHE. ML:2.3 0.00010499999999999999 1.08 AML other m 2020-09-04T23:29:47.33
IV.ASQU.HHN. ML:2.4 0.00011149999999999999 0.34 AML other m 2020-09-04T23:29:47.72
IV.TERO.HHN. ML:1.2 0.00005565 0.9 AML other m 2020-09-04T23:29:47.54
IV.RINC.HHN. ML:2.4 0.00010445 0.26 AML other m 2020-09-04T23:29:48.47
IV.VISG.HHN. ML:3.0 0.000263 0.24 AML other m 2020-09-04T23:29:49.20
IV.VISG.HHE. ML:2.6 0.00010445 1.06 AML other m 2020-09-04T23:29:49.98
IV.SEI.HHN. ML:3.1 0.0003395 0.62 AML other m 2020-09-04T23:29:50.95
IV.CRE.HHN. ML:2.3 0.000126 0.6 AML other m 2020-09-04T23:29:52.58
IV.FNVD.HHE. ML:2.4 0.000058700000000000004 0.46 AML other m 2020-09-04T23:29:56.77
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
Waveforms Seismic signals in miniseed + resp format Download