Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 01-02-2020 and time 08:33:33 (Italy) in region 3 km W Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 3 km W Norcia (PG), on

  • 01-02-2020 07:33:33 (UTC)
  • 01-02-2020 08:33:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7930, 13.0520 at 9 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 3 4957 4957
Cascia PG 9 3217 8174
Preci PG 10 724 8898
Cerreto di Spoleto PG 11 1075 9973
Poggiodomo PG 13 117 10090
Castelsantangelo sul Nera MC 14 281 10371
Sellano PG 15 1079 11450
Vallo di Nera PG 16 364 11814
Visso MC 16 1107 12921
Monteleone di Spoleto PG 18 599 13520
Ussita MC 18 444 13964
Sant'Anatolia di Narco PG 19 564 14528
Accumoli RI 19 667 15195

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
64 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
92 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 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 1.6 2020-02-01
07:33:33		 42.7932 13.0517 9 2020-07-18
21:08:21		 Bollettino Sismico Italiano INGV 76649981
Reviewed
Rev100 		ML 1.6 2020-02-01
07:33:33		 42.7938 13.0538 10 2020-02-01
07:39:30		 Sala Sismica INGV-Roma 76094461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-01 07:33:33 ± 0.05
Latitude 42.7932 ± 0.0018
Longitude 13.0517 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76649981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 256
Semi-minor axis of confidence ellipse (meter) 166
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
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) 49
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.60704
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 76094461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-01 07:39:30

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 76649981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-11 15:06:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-02-01T07:33:55.77 0.3 undecidable manual S 321 67.377 50 0.93 54
IV.FIAM.HHZ. 2020-02-01T07:33:52.45 0.3 undecidable manual S 175 58.497 50 -0.01 73
IV.ATCC.EHZ. 2020-02-01T07:33:51.90 0.3 undecidable manual S 323 54.8007 50 0.42 67
IV.GIGS.HHZ. 2020-02-01T07:33:51.84 0.3 undecidable manual S 131 56.7987 50 -0.18 71
IV.SNTG.HHZ. 2020-02-01T07:33:50.68 0.3 undecidable manual S 350 52.0035 50 -0.05 73
IV.SAP2.EHE. 2020-02-01T07:33:49.47 0.6 undecidable manual S 40 43.9227 50 0.9 38
IV.TERO.HHZ. 2020-02-01T07:33:49.59 0.3 undecidable manual S 113 48.8178 50 -0.28 70
IV.MDAR.HNN. 2020-02-01T07:33:48.75 0.6 undecidable manual S 9 44.9217 50 -0.09 49
IV.GUMA.HHZ. 2020-02-01T07:33:47.21 0.3 undecidable manual S 38 37.7289 50 0.29 71
IV.MF5.EHZ. 2020-02-01T07:33:47.92 0.3 undecidable manual S 57 39.5271 50 0.51 68
IV.CESX.HHE. 2020-02-01T07:33:47.93 0.3 undecidable manual S 242 43.1235 50 -0.41 69
IV.PF6.EHN. 2020-02-01T07:33:47.21 0.3 undecidable manual S 17 39.9267 50 -0.3 71
IT.GNU.HGZ. 2020-02-01T07:33:47.70 0.3 undecidable manual S 272 39.2274 50 0.39 70
IV.CAMP.HHZ. 2020-02-01T07:33:47.59 0.6 undecidable manual S 134 40.8258 50 -0.14 49
IV.MOMA.HHZ. 2020-02-01T07:33:46.99 0.3 undecidable manual S 272 39.2274 50 -0.32 71
IV.CSP1.EHZ. 2020-02-01T07:33:46.07 0.3 undecidable manual S 21 35.4423 50 -0.22 73
IV.MML1.HNE. 2020-02-01T07:33:46.24 0.3 undecidable manual S 350 36.1416 50 -0.25 72
IV.RM33.EHZ. 2020-02-01T07:33:46.56 0.3 undecidable manual S 157 34.2435 50 0.59 66
IV.MURB.HHZ. 2020-02-01T07:33:46.45 0.6 undecidable manual P 321 67.377 50 0.42 44
IV.ARRO.EHZ. 2020-02-01T07:33:45.40 0.3 undecidable manual S 225 33.2445 50 -0.33 71
IV.MTRA.EHZ. 2020-02-01T07:33:44.12 0.3 undecidable manual S 98 28.3494 108 -0.23 74
IV.FIAM.HHZ. 2020-02-01T07:33:44.45 0.6 undecidable manual P 175 58.497 50 -0.2 47
IV.SMA1.EHZ. 2020-02-01T07:33:44.88 0.3 undecidable manual S 128 29.3484 108 0.22 73
IV.CESI.HHZ. 2020-02-01T07:33:43.51 0.3 undecidable manual S 333 26.3514 109 -0.17 75
IV.SNTG.HHZ. 2020-02-01T07:33:43.69 0.6 undecidable manual P 350 52.0035 50 0.04 49
IV.GIGS.HHZ. 2020-02-01T07:33:43.99 0.6 undecidable manual P 131 56.7987 50 -0.41 45
IV.T1299.HNZ. 2020-02-01T07:33:43.99 0.6 undecidable manual S 133 25.752 110 0.5 46
IV.FDMO.HHZ. 2020-02-01T07:33:43.62 0.3 undecidable manual S 6 27.1506 109 -0.33 72
IV.ATCC.EHZ. 2020-02-01T07:33:43.89 0.3 undecidable manual P 323 54.8007 50 -0.2 71
IV.SAP2.EHE. 2020-02-01T07:33:43.36 0.6 undecidable manual P 40 43.9227 50 0.95 37
IV.MDAR.HNN. 2020-02-01T07:33:42.36 0.6 undecidable manual P 9 44.9217 50 -0.2 48
IV.MMO1.EHZ. 2020-02-01T07:33:42.97 0.3 undecidable manual S 62 25.2525 110 -0.37 72
IT.GNU.HGZ. 2020-02-01T07:33:42.40 0.6 undecidable manual P 272 39.2274 50 0.72 42
IT.MTCL.HGZ. 2020-02-01T07:33:42.24 0.3 undecidable manual S 349 22.6551 112 -0.25 74
IV.CESX.HHE. 2020-02-01T07:33:42.19 0.6 undecidable manual P 242 43.1235 50 -0.09 49
IV.TERO.HHZ. 2020-02-01T07:33:42.69 0.3 undecidable manual P 113 48.8178 50 -0.47 67
IV.MC2.EHZ. 2020-02-01T07:33:41.08 0.3 undecidable manual S 40 17.2716 118 0.3 74
IV.RM33.EHZ. 2020-02-01T07:33:41.44 0.3 undecidable manual P 157 34.2435 50 0.53 68
IV.CAMP.HHZ. 2020-02-01T07:33:41.53 0.3 undecidable manual P 134 40.8258 50 -0.4 69
IV.LNSS.HHZ. 2020-02-01T07:33:41.84 0.3 undecidable manual S 183 21.1677 114 -0.16 76
IV.MOMA.HHZ. 2020-02-01T07:33:41.51 0.3 undecidable manual P 272 39.2274 50 -0.17 73
IV.FEMA.HNZ. 2020-02-01T07:33:41.28 0.3 undecidable manual S 360 18.7701 116 0.03 78
IV.GUMA.HHZ. 2020-02-01T07:33:41.51 0.3 undecidable manual P 38 37.7289 50 0.06 75
IV.MF5.EHZ. 2020-02-01T07:33:41.98 0.3 undecidable manual P 57 39.5271 50 0.25 72
IV.PF6.EHN. 2020-02-01T07:33:41.47 0.3 undecidable manual P 17 39.9267 50 -0.32 71
IV.SMA1.EHZ. 2020-02-01T07:33:40.00 0.3 undecidable manual P 128 29.3484 108 -0.15 75
IV.GAVE.EHZ. 2020-02-01T07:33:40.87 0.3 undecidable manual S 229 17.0718 119 0.15 76
IV.ARRO.EHZ. 2020-02-01T07:33:40.55 3.0 undecidable manual P 225 33.2445 50 -0.22 0
IV.CSP1.EHZ. 2020-02-01T07:33:40.80 0.3 undecidable manual P 21 35.4423 50 -0.29 72
IV.MML1.HNE. 2020-02-01T07:33:40.95 0.3 undecidable manual P 350 36.1416 50 -0.26 72
IV.MTRA.EHZ. 2020-02-01T07:33:39.66 0.3 undecidable manual P 98 28.3494 108 -0.31 72
IV.CESI.HHZ. 2020-02-01T07:33:39.46 0.3 undecidable manual P 333 26.3514 109 -0.13 75
IV.FDMO.HHZ. 2020-02-01T07:33:39.52 0.1 positive manual P 6 27.1506 109 -0.22 98
IV.T1299.HNZ. 2020-02-01T07:33:39.46 0.3 undecidable manual P 133 25.752 110 -0.01 77
IV.MMO1.EHZ. 2020-02-01T07:33:39.29 0.3 undecidable manual P 62 25.2525 110 -0.1 76
IV.LNSS.HHZ. 2020-02-01T07:33:38.66 0.3 undecidable manual P 183 21.1677 114 0.05 77
IV.MC2.EHZ. 2020-02-01T07:33:38.18 0.1 positive manual P 40 17.2716 118 0.27 99
IV.NRCA.HHZ. 2020-02-01T07:33:38.19 0.3 undecidable manual S 49 6.7932 144 0.21 77
IV.GAVE.EHZ. 2020-02-01T07:33:38.10 0.1 positive manual P 229 17.0718 119 0.22 100
IV.FEMA.HNZ. 2020-02-01T07:33:38.31 0.3 undecidable manual P 360 18.7701 116 0.13 76
IT.MTCL.HGZ. 2020-02-01T07:33:38.81 0.3 undecidable manual P 349 22.6551 112 -0.09 76
IV.NRCA.HHZ. 2020-02-01T07:33:36.62 0.3 undecidable manual P 49 6.7932 144 0.33 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.0 0.001655499 0.1408 AML other m 2020-02-01T07:33:38.33
IV.NRCA.HHN. ML:2.0 0.0018422245 0.16 AML other m 2020-02-01T07:33:38.34
IV.NRCA.HNE. ML:1.8 0.0011186744 0.096 AML other m 2020-02-01T07:33:38.43
IV.NRCA.HHE. ML:1.8 0.00116323135 0.1024 AML other m 2020-02-01T07:33:38.44
IV.GAVE.EHN. ML:1.8 0.00055500175 0.16 AML other m 2020-02-01T07:33:41.15
IV.GAVE.EHE. ML:1.9 0.0007447087999999999 0.1984 AML other m 2020-02-01T07:33:41.87
IV.LNSS.HHN. ML:1.8 0.00050169485 0.1408 AML other m 2020-02-01T07:33:42.44
IV.LNSS.HNN. ML:1.8 0.0005105467 0.128 AML other m 2020-02-01T07:33:42.44
IV.LNSS.HHE. ML:1.9 0.00058958575 0.1216 AML other m 2020-02-01T07:33:42.37
IV.LNSS.HNE. ML:1.8 0.00050131055 0.128 AML other m 2020-02-01T07:33:42.37
IV.CESI.HNE. ML:1.8 0.00032138195000000003 0.1536 AML other m 2020-02-01T07:33:43.81
IV.CESI.HHE. ML:1.8 0.0003614268 0.1408 AML other m 2020-02-01T07:33:43.81
IV.CESI.HNN. ML:2.1 0.0007895168 0.1984 AML other m 2020-02-01T07:33:43.83
IV.CESI.HHN. ML:2.2 0.0008280224499999999 0.1984 AML other m 2020-02-01T07:33:43.83
IV.FDMO.HHN. ML:1.7 0.00027660485000000003 0.2432 AML other m 2020-02-01T07:33:44.31
IV.MTRA.EHE. ML:1.7 0.00023946634999999998 0.1792 AML other m 2020-02-01T07:33:44.59
IV.MTRA.HNE. ML:1.6 0.00022866803499999998 0.1664 AML other m 2020-02-01T07:33:44.59
IV.MTRA.EHN. ML:1.7 0.0002332456 0.2432 AML other m 2020-02-01T07:33:44.87
IV.MTRA.HNN. ML:1.6 0.00021114015 0.2304 AML other m 2020-02-01T07:33:44.87
IV.FDMO.HHE. ML:1.5 0.00018898815 0.1984 AML other m 2020-02-01T07:33:45.13
IV.SMA1.EHN. ML:1.4 0.00011284436 0.2368 AML other m 2020-02-01T07:33:45.87
IV.ARRO.EHN. ML:1.1 0.000062361125 0.1792 AML other m 2020-02-01T07:33:46.39
IV.CSP1.EHE. ML:1.3 0.00007572954 0.1984 AML other m 2020-02-01T07:33:46.85
IV.ARRO.EHE. ML:1.3 0.00009299143500000001 0.1984 AML other m 2020-02-01T07:33:47.04
IV.SMA1.EHE. ML:1.5 0.000155262135 0.2624 AML other m 2020-02-01T07:33:47.53
IV.CSP1.EHN. ML:1.4 0.000104815615 0.16 AML other m 2020-02-01T07:33:47.90
IV.RM33.EHN. ML:1.3 0.000086342665 0.16 AML other m 2020-02-01T07:33:48.22
IV.RM33.HNN. ML:1.4 0.00009750842500000001 0.1472 AML other m 2020-02-01T07:33:48.21
IV.MF5.EHN. ML:1.5 0.00010424410000000001 0.224 AML other m 2020-02-01T07:33:48.75
IV.MF5.EHE. ML:1.4 0.00008045248500000001 0.224 AML other m 2020-02-01T07:33:48.83
IV.RM33.EHE. ML:1.3 0.00007907610500000001 0.1792 AML other m 2020-02-01T07:33:48.83
IV.RM33.HNE. ML:1.3 0.000090061425 0.1984 AML other m 2020-02-01T07:33:48.83
IV.MOMA.HHE. ML:1.5 0.00010385649499999999 0.1792 AML other m 2020-02-01T07:33:49.07
IV.MOMA.HNE. ML:1.4 0.00009646193000000001 0.1856 AML other m 2020-02-01T07:33:49.07
IV.TERO.HHE. ML:1.2 0.00004158749000000001 0.0832 AML other m 2020-02-01T07:33:50.09
IV.MOMA.HNN. ML:1.6 0.000141491245 0.3072 AML other m 2020-02-01T07:33:50.27
IV.MOMA.HHN. ML:1.3 0.000074964955 0.3008 AML other m 2020-02-01T07:33:50.42
IV.SNTG.HHE. ML:1.3 0.00004388097 0.1216 AML other m 2020-02-01T07:33:51.31
IV.TERO.HHN. ML:1.3 0.00005504207 0.0832 AML other m 2020-02-01T07:33:51.46
IV.SNTG.HHN. ML:1.2 0.000037907905 0.1408 AML other m 2020-02-01T07:33:52.51
IV.ATCC.EHE. ML:1.4 0.00006116814500000001 0.2624 AML other m 2020-02-01T07:33:52.67
IV.ATCC.EHN. ML:1.4 0.000055246955 0.32 AML other m 2020-02-01T07:33:54.73
IV.MURB.HHE. ML:1.8 0.0001210627 0.2368 AML other m 2020-02-01T07:33:57.29
IV.MURB.HNE. ML:1.8 0.0001150712 0.2752 AML other m 2020-02-01T07:33:57.29
IV.MURB.HNN. ML:1.9 0.000150088965 0.352 AML other m 2020-02-01T07:33:58.50
IV.MURB.HHN. ML:2.0 0.000156984 0.2816 AML other m 2020-02-01T07:33:58.83
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