Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 25-09-2019 and time 00:03:17 (Italy) in region 4 km N Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 4 km N Norcia (PG), on

  • 24-09-2019 22:03:17 (UTC)
  • 25-09-2019 00:03:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8250, 13.0990 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 4 4957 4957
Preci PG 8 724 5681
Castelsantangelo sul Nera MC 9 281 5962
Visso MC 12 1107 7069
Cascia PG 14 3217 10286
Ussita MC 14 444 10730
Cerreto di Spoleto PG 15 1075 11805
Sellano PG 16 1079 12884
Arquata del Tronto AP 17 1178 14062
Poggiodomo PG 18 117 14179
Accumoli RI 19 667 14846
Montegallo AP 19 523 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km N of Tivoli (56533 inhabitants)
100 Km W of Pescara (121014 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 2019-09-24
22:03:17		 42.8247 13.0992 11 2020-02-28
16:42:19		 Bollettino Sismico Italiano INGV 75588021
Reviewed
Rev100 		ML 1.6 2019-09-24
22:03:17		 42.8243 13.1017 10 2019-09-24
22:11:59		 Sala Sismica INGV-Roma 72735531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-24 22:03:17 ± 0.05
Latitude 42.8247 ± 0.0027
Longitude 13.0992 ± 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 75588021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 359
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 50
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) 0.01439
Epicentral distance of station farthest from the epicenter (degree) 0.82108
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 72735531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-24 22:11:59

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 75588021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-16 15:48:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.AQU.HNN. 2019-09-24T22:03:36.03 0.3 undecidable manual P 57.8976 7.7 0
IV.ATMI.HHZ. 2019-09-24T22:03:35.75 3.0 undecidable manual P 87.9453 2.79 0
IV.PIEI.HHZ. 2019-09-24T22:03:33.49 0.6 undecidable manual P 330 91.1421 50 0.04 44
IV.T0110.HHZ. 2019-09-24T22:03:32.89 0.6 undecidable manual P 140 86.1471 50 0.2 43
IV.FRON.EHZ. 2019-09-24T22:03:32.35 0.6 undecidable manual P 339 82.6506 50 0.21 43
IV.ARVD.HHZ. 2019-09-24T22:03:31.29 0.6 undecidable manual P 350 75.7686 50 0.2 44
IV.MURB.HHZ. 2019-09-24T22:03:29.95 0.6 undecidable manual P 316 67.2771 50 0.17 45
IV.GUMA.HHZ. 2019-09-24T22:03:29.63 0.3 undecidable manual S 36 32.6451 50 0.44 68
IV.SMA1.EHZ. 2019-09-24T22:03:28.06 0.3 undecidable manual S 138 28.8489 50 -0.13 71
IV.CSP1.EHZ. 2019-09-24T22:03:28.56 0.3 undecidable manual S 16 30.8469 50 -0.15 71
IV.FOSV.EHZ. 2019-09-24T22:03:28.76 0.3 undecidable manual P 332 58.8966 50 0.27 67
IV.ATCC.EHZ. 2019-09-24T22:03:27.91 0.3 undecidable manual P 317 54.6009 50 0.08 70
IV.T1299.HNZ. 2019-09-24T22:03:27.68 0.3 undecidable manual S 145 25.8519 50 0.3 71
IV.EL6.EHZ. 2019-09-24T22:03:27.98 0.6 undecidable manual P 0 55.9995 50 -0.06 46
IV.OFFI.HHZ. 2019-09-24T22:03:27.76 0.6 undecidable manual P 75 49.2174 50 0.76 40
IV.GIGS.HHZ. 2019-09-24T22:03:27.70 0.6 undecidable manual P 137 56.499 50 -0.41 43
IV.MNTP.HNZ. 2019-09-24T22:03:27.00 0.6 undecidable manual P 41 45.9207 50 0.52 43
IV.CESI.HHZ. 2019-09-24T22:03:27.16 0.3 undecidable manual S 322 25.4523 50 -0.12 73
IV.GAVE.EHZ. 2019-09-24T22:03:26.32 0.3 undecidable manual S 229 22.2555 50 -0.09 73
IV.SNTG.HHZ. 2019-09-24T22:03:26.86 0.3 undecidable manual P 345 49.4172 50 -0.17 69
IV.FDMO.HHZ. 2019-09-24T22:03:26.32 0.3 undecidable manual S 358 23.5542 50 -0.44 68
IV.SAP2.EHZ. 2019-09-24T22:03:26.00 1.0 undecidable manual P 39 38.7279 50 0.62 21
IV.TERO.HHZ. 2019-09-24T22:03:26.31 0.3 undecidable manual P 118 46.8198 50 -0.31 66
IV.MTRA.EHZ. 2019-09-24T22:03:26.93 0.3 undecidable manual S 107 25.3524 50 -0.32 69
IV.MNTT.EHZ. 2019-09-24T22:03:26.47 1.0 undecidable manual P 57 48.1185 50 -0.36 22
IV.MOMA.HHZ. 2019-09-24T22:03:26.27 0.3 undecidable manual P 267 43.1235 50 0.22 70
IV.CAMP.HHZ. 2019-09-24T22:03:25.51 0.6 negative manual P 142 40.8258 50 -0.19 46
IV.SEF1.HNN. 2019-09-24T22:03:25.29 0.6 undecidable manual P 341 37.8288 50 0.06 48
IV.MF5.EHN. 2019-09-24T22:03:25.08 0.3 undecidable manual P 58 34.4433 50 0.36 69
IV.MMO1.EHZ. 2019-09-24T22:03:25.46 0.3 undecidable manual S 66 20.2686 50 -0.43 68
IV.ARRO.EHZ. 2019-09-24T22:03:25.54 0.6 negative manual P 225 38.4282 50 0.2 47
IT.MTCL.HGZ. 2019-09-24T22:03:25.56 0.3 undecidable manual S 337 20.4684 50 -0.37 69
IV.MC2.EHZ. 2019-09-24T22:03:24.01 0.3 undecidable manual S 37 12.0768 132 0.45 70
IV.MML1.HNE. 2019-09-24T22:03:24.41 0.6 undecidable manual P 342 33.6441 50 -0.19 47
IV.GUMA.HHZ. 2019-09-24T22:03:24.64 0.3 undecidable manual P 36 32.6451 50 0.2 71
IV.FEMA.HNZ. 2019-09-24T22:03:24.40 0.3 undecidable manual S 345 15.7731 124 -0.17 73
IV.RM33.EHZ. 2019-09-24T22:03:24.76 0.3 undecidable manual P 165 36.2415 50 -0.24 69
IV.PF6.EHN. 2019-09-24T22:03:24.65 0.3 undecidable manual P 13 35.6421 50 -0.25 69
IV.CSP1.EHZ. 2019-09-24T22:03:24.07 0.1 positive manual P 16 30.8469 50 -0.09 96
IV.CESI.HHZ. 2019-09-24T22:03:23.31 0.3 undecidable manual P 322 25.4523 50 -0.02 74
IV.T1299.HNZ. 2019-09-24T22:03:23.47 0.3 undecidable manual P 145 25.8519 50 0.08 74
IV.SMA1.EHZ. 2019-09-24T22:03:23.77 0.1 negative manual P 138 28.8489 50 -0.09 96
IV.MTRA.EHZ. 2019-09-24T22:03:23.12 0.3 undecidable manual P 107 25.3524 50 -0.2 71
IT.MTCL.HGZ. 2019-09-24T22:03:22.51 0.3 undecidable manual P 337 20.4684 50 -0.05 74
IV.GAVE.EHZ. 2019-09-24T22:03:22.91 0.3 undecidable manual P 229 22.2555 50 0.07 75
IV.FDMO.HHZ. 2019-09-24T22:03:22.93 0.3 positive manual P 358 23.5542 50 -0.1 73
IV.MMO1.EHZ. 2019-09-24T22:03:22.40 0.1 undecidable manual P 66 20.2686 50 -0.14 97
IV.MC2.EHZ. 2019-09-24T22:03:21.41 0.1 undecidable manual P 37 12.0768 132 0.22 98
IV.FEMA.HNZ. 2019-09-24T22:03:21.84 0.1 undecidable manual P 345 15.7731 124 0.08 100
IV.NRCA.HNZ. 2019-09-24T22:03:21.58 0.3 undecidable manual S 51 1.5984 172 -0.13 75
IV.NRCA.HNZ. 2019-09-24T22:03:20.34 0.1 negative manual P 51 1.5984 172 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.3 0.0036112825 0.1408 AML other m 2019-09-24T22:03:22.59
IV.NRCA.HNN. ML:2.7 0.0091970495 0.1408 AML other m 2019-09-24T22:03:21.79
IV.NRCA.HHN. ML:2.7 0.0098934 0.1408 AML other m 2019-09-24T22:03:21.78
IV.NRCA.HHE. ML:2.4 0.0039441595 0.1664 AML other m 2019-09-24T22:03:22.66
IV.GAVE.HNE. ML:1.9 0.0005464468 0.1408 AML other m 2019-09-24T22:03:27.62
IV.GAVE.EHN. ML:2.0 0.00067072495 0.32 AML other m 2019-09-24T22:03:26.87
IV.GAVE.EHE. ML:1.9 0.0005692087999999999 0.1664 AML other m 2019-09-24T22:03:27.64
IV.GAVE.HNN. ML:1.5 0.00021106939999999998 0.2944 AML other m 2019-09-24T22:03:26.85
IV.FDMO.HHE. ML:1.5 0.0002064306 0.1024 AML other m 2019-09-24T22:03:27.01
IV.FDMO.HHN. ML:1.7 0.00031321880000000004 0.2432 AML other m 2019-09-24T22:03:26.66
IV.MTRA.EHN. ML:1.8 0.0003464676 0.2176 AML other m 2019-09-24T22:03:27.51
IV.MTRA.HNN. ML:1.8 0.0003502633 0.2816 AML other m 2019-09-24T22:03:27.51
IV.MTRA.EHE. ML:1.8 0.00035928625000000003 0.256 AML other m 2019-09-24T22:03:27.85
IV.MTRA.HNE. ML:1.8 0.00035411665000000003 0.2688 AML other m 2019-09-24T22:03:27.85
IV.CESI.HHE. ML:1.6 0.0002281243 0.0768 AML other m 2019-09-24T22:03:27.69
IV.CESI.HHN. ML:1.7 0.00029112550000000005 0.192 AML other m 2019-09-24T22:03:27.88
IV.CESI.HNE. ML:1.6 0.00020508905 0.1024 AML other m 2019-09-24T22:03:27.28
IV.CESI.HNN. ML:1.7 0.000276784 0.0896 AML other m 2019-09-24T22:03:27.72
IV.SMA1.EHE. ML:1.4 0.000134296 0.2048 AML other m 2019-09-24T22:03:29.60
IV.SMA1.EHN. ML:1.6 0.0001840975 0.192 AML other m 2019-09-24T22:03:29.68
IV.CSP1.EHE. ML:1.8 0.00028309748999999994 0.1408 AML other m 2019-09-24T22:03:29.31
IV.CSP1.EHN. ML:1.9 0.00037515454999999996 0.1408 AML other m 2019-09-24T22:03:29.77
IV.GUMA.HHN. ML:1.6 0.0001882309 0.4352 AML other m 2019-09-24T22:03:33.66
IV.GUMA.HNE. ML:1.7 0.00020728600000000002 0.2688 AML other m 2019-09-24T22:03:32.76
IV.GUMA.HHE. ML:1.8 0.0002482098 0.3072 AML other m 2019-09-24T22:03:32.60
IV.RM33.EHN. ML:1.6 0.00015186375 0.1024 AML other m 2019-09-24T22:03:31.09
IV.RM33.HNN. ML:1.6 0.00014833755 0.1024 AML other m 2019-09-24T22:03:31.04
IV.RM33.HNE. ML:1.5 0.000132151945 0.1024 AML other m 2019-09-24T22:03:31.67
IV.RM33.EHE. ML:1.6 0.0001325143 0.1152 AML other m 2019-09-24T22:03:31.66
IV.CAMP.HHE. ML:1.0 0.00003468661 0.32 AML other m 2019-09-24T22:03:31.57
IV.CAMP.HHN. ML:1.0 0.00003420297 0.32 AML other m 2019-09-24T22:03:31.62
IV.ARRO.EHN. ML:1.3 0.00006533335 0.1536 AML other m 2019-09-24T22:03:34.49
IV.ARRO.EHE. ML:1.3 0.00006758400000000001 0.1792 AML other m 2019-09-24T22:03:31.26
IV.SAP2.EHE. ML:1.8 0.00019938625 0.1152 AML other m 2019-09-24T22:03:32.65
IV.SAP2.EHN. ML:2.6 0.0012479070000000001 0.1408 AML other m 2019-09-24T22:03:32.59
IV.MOMA.HHN. ML:1.3 0.000064936025 0.192 AML other m 2019-09-24T22:03:33.46
IV.MOMA.HNE. ML:1.6 0.0001114427 0.6272 AML other m 2019-09-24T22:03:32.48
IV.MOMA.HHE. ML:1.5 0.00009253510500000001 0.1408 AML other m 2019-09-24T22:03:33.52
IV.TERO.HHN. ML:1.3 0.000054544999999999994 0.1408 AML other m 2019-09-24T22:03:33.73
IV.TERO.HHE. ML:1.3 0.000054728084999999994 0.1408 AML other m 2019-09-24T22:03:34.14
IV.SNTG.HHN. ML:1.1 0.000035589184999999994 0.1152 AML other m 2019-09-24T22:03:35.14
IV.SNTG.HHE. ML:1.3 0.000049330534999999994 0.1408 AML other m 2019-09-24T22:03:34.92
IV.MNTT.EHN. ML:2.0 0.00023791724999999996 0.2176 AML other m 2019-09-24T22:03:40.08
IV.MNTT.EHE. ML:1.8 0.0001713776 0.384 AML other m 2019-09-24T22:03:39.49
IV.ATCC.EHN. ML:1.3 0.00004619663 0.2688 AML other m 2019-09-24T22:03:36.52
IV.ATCC.EHE. ML:1.3 0.00004833955 0.1408 AML other m 2019-09-24T22:03:37.18
IV.GIGS.HHN. ML:0.8 0.000012919195500000001 0.1664 AML other m 2019-09-24T22:03:38.19
IV.GIGS.HHE. ML:0.8 0.00001255378 0.1664 AML other m 2019-09-24T22:03:36.66
IV.EL6.EHE. ML:1.5 0.00007632673 0.1408 AML other m 2019-09-24T22:03:39.59
IV.EL6.EHN. ML:1.7 0.00012187058000000001 0.2944 AML other m 2019-09-24T22:03:38.66
IV.FOSV.EHE. ML:1.1 0.0000235578 0.1152 AML other m 2019-09-24T22:03:39.38
IV.FOSV.EHN. ML:1.2 0.000028030344999999998 0.2816 AML other m 2019-09-24T22:03:44.66
IV.MURB.HHE. ML:2.0 0.0001720464 0.32 AML other m 2019-09-24T22:03:44.61
IV.MURB.HNN. ML:1.9 0.000133014455 0.512 AML other m 2019-09-24T22:03:45.19
IV.MURB.HNE. ML:2.0 0.0001925737 0.32 AML other m 2019-09-24T22:03:44.77
IV.MURB.HHN. ML:1.8 0.00010243540500000001 0.3584 AML other m 2019-09-24T22:03:42.00
IV.ARVD.HHE. ML:1.1 0.000021250035 0.2432 AML other m 2019-09-24T22:03:44.08
IV.ARVD.HHN. ML:1.0 0.000013606924999999998 0.0768 AML other m 2019-09-24T22:03:42.78
IV.FRON.EHE. ML:1.1 0.000014663852499999999 0.256 AML other m 2019-09-24T22:03:47.11
IV.FRON.EHN. ML:1.3 0.000023752795 0.3328 AML other m 2019-09-24T22:03:48.98
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