Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-09-2019 and time 09:26:17 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 1.8 earthquake occured in region: 3 km NE Norcia (PG), on

  • 25-09-2019 07:26:17 (UTC)
  • 25-09-2019 09:26:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8080, 13.1190 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 3 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 10 724 5962
Cascia PG 13 3217 9179
Visso MC 14 1107 10286
Arquata del Tronto AP 15 1178 11464
Ussita MC 15 444 11908
Accumoli RI 16 667 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 18 523 14173
Sellano PG 18 1079 15252
Poggiodomo PG 18 117 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
100 Km NW of Chieti (51815 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 1.8 2019-09-25
07:26:17		 42.8077 13.119 10 2020-02-28
16:42:11		 Bollettino Sismico Italiano INGV 74316411
Reviewed
Rev100 		ML 1.8 2019-09-25
07:26:17		 42.8032 13.1237 10 2019-09-25
07:40:43		 Sala Sismica INGV-Roma 72749641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-25 07:26:17 ± 0.05
Latitude 42.8077 ± 0.0027
Longitude 13.1190 ± 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 74316411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 72
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
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) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.67269
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 41
Type of magnitude ML
Reference to an origin 74316411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-04 14:28:12

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 72749641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-25 07:40:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-09-25T07:26:36.50 0.3 undecidable manual S 359 57.8976 50 0.37 66
IV.ATCC.EHZ. 2019-09-25T07:26:36.49 0.3 undecidable manual S 317 57.0984 50 0.56 63
IV.GIGS.HHZ. 2019-09-25T07:26:34.63 0.6 undecidable manual S 137 54.0015 50 -0.47 43
IV.MOMA.HHZ. 2019-09-25T07:26:33.04 0.6 undecidable manual S 270 44.7219 50 0.44 44
IV.SAP2.EHZ. 2019-09-25T07:26:32.00 0.3 undecidable manual S 35 39.3273 50 0.83 58
IV.TERO.HHZ. 2019-09-25T07:26:32.43 0.6 undecidable manual S 117 44.5221 50 -0.13 47
IV.VCEL.EHZ. 2019-09-25T07:26:31.30 0.3 undecidable manual P 128 74.6697 50 0.28 65
IV.CAMP.HHZ. 2019-09-25T07:26:30.54 0.3 undecidable manual S 142 38.3283 50 -0.37 68
IV.ARRO.EHZ. 2019-09-25T07:26:30.92 0.6 undecidable manual S 229 38.3283 50 0 49
IV.PF6.EHN. 2019-09-25T07:26:30.17 0.3 undecidable manual S 9 37.1295 50 -0.42 68
IV.MF5.EHZ. 2019-09-25T07:26:29.90 0.6 undecidable manual S 54 34.1436 50 0.11 48
IV.GUMA.HHZ. 2019-09-25T07:26:29.59 0.6 undecidable manual S 32 33.3444 50 0.03 49
IV.MML1.HNE. 2019-09-25T07:26:29.93 0.3 undecidable manual S 341 35.9418 50 -0.35 69
IV.RM33.EHZ. 2019-09-25T07:26:29.55 0.6 undecidable manual S 167 34.0437 50 -0.21 47
IV.CSP1.EHZ. 2019-09-25T07:26:28.83 0.3 undecidable manual S 12 32.2455 50 -0.47 68
IV.EL6.EHZ. 2019-09-25T07:26:28.16 0.3 undecidable manual P 359 57.8976 50 -0.28 67
IV.ATCC.EHZ. 2019-09-25T07:26:28.37 0.3 undecidable manual P 317 57.0984 50 0.05 71
IV.T1299.HNN. 2019-09-25T07:26:27.05 0.3 undecidable manual S 145 23.3544 113 0.32 71
IV.CESI.HHZ. 2019-09-25T07:26:27.91 0.3 undecidable manual S 322 27.9498 50 -0.23 72
IV.OFFI.HHZ. 2019-09-25T07:26:27.71 0.1 undecidable manual P 73 48.2184 50 0.77 78
IV.SNTG.HHE. 2019-09-25T07:26:27.72 0.6 undecidable manual P 344 51.7038 50 0.24 46
IV.MNTT.EHZ. 2019-09-25T07:26:27.63 0.3 undecidable manual P 54 47.9187 50 0.73 59
IV.GIGS.HHZ. 2019-09-25T07:26:27.71 0.3 undecidable manual P 137 54.0015 50 -0.13 70
IV.SMA1.EHZ. 2019-09-25T07:26:27.55 0.6 undecidable manual S 138 26.3514 110 -0.15 49
IV.FDMO.HHZ. 2019-09-25T07:26:26.96 0.3 undecidable manual S 354 25.5522 111 -0.45 69
IV.TERO.HHZ. 2019-09-25T07:26:26.13 0.3 undecidable manual P 117 44.5221 50 -0.25 69
IV.GAVE.EHZ. 2019-09-25T07:26:26.42 0.3 undecidable manual S 235 22.3554 114 0.02 75
IV.MOMA.HHZ. 2019-09-25T07:26:26.73 0.3 undecidable manual P 270 44.7219 50 0.33 68
IV.MTRA.EHZ. 2019-09-25T07:26:26.46 0.6 undecidable manual S 104 23.2545 113 -0.24 48
IT.MTCL.HGZ. 2019-09-25T07:26:26.25 0.6 undecidable manual S 335 22.8549 113 -0.3 47
IV.FEMA.HNE. 2019-09-25T07:26:25.06 0.6 undecidable manual S 342 18.0708 118 0.01 51
IV.MMO1.EHZ. 2019-09-25T07:26:25.53 0.3 undecidable manual S 59 19.7691 116 -0.04 75
IV.SAP2.EHZ. 2019-09-25T07:26:25.85 0.1 undecidable manual P 35 39.3273 50 0.27 93
IV.CAMP.HHZ. 2019-09-25T07:26:25.20 0.1 undecidable manual P 142 38.3283 50 -0.22 94
IV.ARRO.EHZ. 2019-09-25T07:26:25.39 0.3 undecidable manual P 229 38.3283 50 -0.04 73
IV.PF6.EHN. 2019-09-25T07:26:24.90 0.1 undecidable manual P 9 37.1295 50 -0.34 92
IV.GUMA.HHZ. 2019-09-25T07:26:24.68 0.1 undecidable manual P 32 33.3444 50 0.03 99
IV.CSP1.EHZ. 2019-09-25T07:26:24.28 0.1 undecidable manual P 12 32.2455 50 -0.21 95
IV.RM33.EHZ. 2019-09-25T07:26:24.64 0.1 undecidable manual P 167 34.0437 50 -0.12 97
IV.MML1.HNE. 2019-09-25T07:26:24.85 0.1 undecidable manual P 341 35.9418 50 -0.21 95
IV.MF5.EHZ. 2019-09-25T07:26:24.96 0.1 undecidable manual P 54 34.1436 50 0.18 95
IV.FDMO.HHZ. 2019-09-25T07:26:23.21 0.1 undecidable manual P 354 25.5522 111 -0.2 97
IV.MC2.EHZ. 2019-09-25T07:26:23.74 0.6 undecidable manual S 26 12.876 127 0.21 49
IV.T1299.HNN. 2019-09-25T07:26:23.14 0.1 undecidable manual P 145 23.3544 113 0.13 98
IV.CESI.HHZ. 2019-09-25T07:26:23.71 0.3 undecidable manual P 322 27.9498 50 -0.12 73
IV.SMA1.EHZ. 2019-09-25T07:26:23.45 0.3 undecidable manual P 138 26.3514 110 -0.12 73
IV.MTRA.EHZ. 2019-09-25T07:26:22.81 0.3 undecidable manual P 104 23.2545 113 -0.18 73
IT.MTCL.HGZ. 2019-09-25T07:26:22.81 0.3 undecidable manual P 335 22.8549 113 -0.1 74
IV.FEMA.HNE. 2019-09-25T07:26:22.15 0.3 undecidable manual P 342 18.0708 118 0.11 75
IV.MMO1.EHZ. 2019-09-25T07:26:22.26 0.1 undecidable manual P 59 19.7691 116 -0.08 100
IV.GAVE.EHZ. 2019-09-25T07:26:22.92 0.1 undecidable manual P 235 22.3554 114 0.1 99
IV.MC2.EHZ. 2019-09-25T07:26:21.43 0.1 positive manual P 26 12.876 127 0.26 97
IV.NRCA.HHZ. 2019-09-25T07:26:21.37 0.3 undecidable manual S 352 2.8971 163 -0.1 77
IV.NRCA.HHZ. 2019-09-25T07:26:20.19 0.1 negative manual P 352 2.8971 163 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.8 0.00029749999999999997 0.22 AML other m 2019-09-25T07:26:29.40
IV.NRCA.HNN. ML:2.7 0.009245000000000001 0.14 AML other m 2019-09-25T07:26:21.52
IV.NRCA.HHE. ML:2.4 0.005395 0.14 AML other m 2019-09-25T07:26:22.07
IV.NRCA.HNE. ML:2.4 0.00505 0.12 AML other m 2019-09-25T07:26:22.07
IV.GAVE.EHN. ML:1.9 0.00055 1.2 AML other m 2019-09-25T07:26:27.11
IV.MTRA.EHN. ML:1.9 0.00047950000000000005 0.16 AML other m 2019-09-25T07:26:27.37
IV.MTRA.EHE. ML:1.9 0.000486 0.14 AML other m 2019-09-25T07:26:27.65
IV.GAVE.EHE. ML:2.2 0.001009 0.28 AML other m 2019-09-25T07:26:28.28
IV.CESI.HHE. ML:1.5 0.00016749999999999998 0.48 AML other m 2019-09-25T07:26:28.33
IV.SMA1.EHE. ML:1.8 0.0003645 0.3 AML other m 2019-09-25T07:26:30.05
IV.RM33.EHE. ML:1.6 0.000174 1.1 AML other m 2019-09-25T07:26:30.08
IV.CESI.HHN. ML:1.6 0.00022 0.26 AML other m 2019-09-25T07:26:31.27
IV.RM33.HNN. ML:1.8 0.0002415 0.46 AML other m 2019-09-25T07:26:31.64
IV.RM33.EHN. ML:1.7 0.00022600000000000002 0.2 AML other m 2019-09-25T07:26:31.42
IV.CAMP.HHE. ML:1.2 0.000052900000000000005 0.66 AML other m 2019-09-25T07:26:31.46
IV.GUMA.HHE. ML:2.1 0.0005335000000000001 1.78 AML other m 2019-09-25T07:26:31.09
IV.CSP1.EHE. ML:1.8 0.000259 0.42 AML other m 2019-09-25T07:26:32.32
IV.SAP2.EHN. ML:2.8 0.00203 0.92 AML other m 2019-09-25T07:26:32.73
IV.RM33.HNE. ML:1.8 0.0002375 0.56 AML other m 2019-09-25T07:26:32.36
IV.GUMA.HHN. ML:2.1 0.0005035 1.54 AML other m 2019-09-25T07:26:32.82
IV.TERO.HHE. ML:1.4 0.0000805 0.56 AML other m 2019-09-25T07:26:32.68
IV.ARRO.EHN. ML:1.5 0.00010614999999999999 0.68 AML other m 2019-09-25T07:26:33.56
IV.SAP2.EHE. ML:2.1 0.00043149999999999997 1.12 AML other m 2019-09-25T07:26:33.25
IV.TERO.HHN. ML:1.6 0.00011549999999999999 1.12 AML other m 2019-09-25T07:26:33.30
IV.ARRO.EHE. ML:1.5 0.000123 1.1 AML other m 2019-09-25T07:26:33.55
IV.MOMA.HHN. ML:1.7 0.00016350000000000002 1.62 AML other m 2019-09-25T07:26:33.90
IV.MOMA.HHE. ML:1.8 0.0001805 0.14 AML other m 2019-09-25T07:26:34.15
IV.MNTT.EHN. ML:2.3 0.000526 1.46 AML other m 2019-09-25T07:26:37.24
IV.MNTT.EHE. ML:2.3 0.0005304999999999999 0.38 AML other m 2019-09-25T07:26:37.43
IV.ATCC.EHE. ML:1.5 0.00006455 0.44 AML other m 2019-09-25T07:26:37.42
IV.OFFI.HHN. ML:1.9 0.000226 0.4 AML other m 2019-09-25T07:26:37.58
IV.EL6.EHN. ML:2.0 0.0001915 0.2 AML other m 2019-09-25T07:26:37.72
IV.OFFI.HHE. ML:1.9 0.0002035 0.72 AML other m 2019-09-25T07:26:37.63
IV.EL6.EHE. ML:1.8 0.0001515 0.92 AML other m 2019-09-25T07:26:38.46
IV.ATCC.EHN. ML:1.6 0.0000812 1.2 AML other m 2019-09-25T07:26:42.17
IV.VCEL.EHE. ML:1.6 0.0000563 1.04 AML other m 2019-09-25T07:26:45.78
IV.VCEL.EHN. ML:1.6 0.00005449999999999999 0.26 AML other m 2019-09-25T07:26:48.71
IV.FDMO.HHE. ML:1.6 0.00024098035 0.16 AML other m 2019-09-25T07:26:29.38
IV.FDMO.HHN. ML:1.7 0.0002644938 0.1024 AML other m 2019-09-25T07:26:28.01
IV.SMA1.EHN. ML:1.7 0.00030593724999999997 0.3424 AML other m 2019-09-25T07:26:31.99
IV.CAMP.HHN. ML:1.2 0.00005616819 0.6592 AML other m 2019-09-25T07:26:37.52
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