Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-11-2019 and time 22:08:09 (Italy) in region 8 km E Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 8 km E Norcia (PG), on

  • 17-11-2019 21:08:09 (UTC)
  • 17-11-2019 22:08:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8150, 13.1840 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 8 4957 4957
Castelsantangelo sul Nera MC 9 281 5238
Arquata del Tronto AP 10 1178 6416
Montegallo AP 13 523 6939
Preci PG 14 724 7663
Accumoli RI 14 667 8330
Ussita MC 15 444 8774
Montemonaco AP 15 604 9378
Visso MC 15 1107 10485
Cascia PG 18 3217 13702
Acquasanta Terme AP 19 2916 16618
Montefortino FM 19 1178 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km E of Viterbo (67173 inhabitants)
100 Km NE of Tivoli (56533 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 1.5 2019-11-17
21:08:09		 42.8147 13.1838 11 2020-02-28
16:42:24		 Bollettino Sismico Italiano INGV 76460461
Reviewed
Rev100 		ML 1.5 2019-11-17
21:08:09		 42.797 13.1837 10 2019-11-17
21:16:02		 Sala Sismica INGV-Roma 73900131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-17 21:08:09 ± 0.06
Latitude 42.8147 ± 0.0036
Longitude 13.1838 ± 0.0025
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76460461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 420
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 76460461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-12 11:33:27

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 73900131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-17 21:16:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2019-11-17T21:08:25.91 3.0 undecidable manual S -0.12 0
IV.ASSB.HHN. 2019-11-17T21:08:25.01 0.6 undecidable manual S 301 49.617 90 -0.09 46
IV.ARRO.EHZ. 2019-11-17T21:08:23.49 0.6 undecidable manual S 233 42.9237 90 0.17 45
IV.TERO.HHZ. 2019-11-17T21:08:22.63 0.6 undecidable manual S 122 40.3263 90 0.01 48
IV.MML1.HNE. 2019-11-17T21:08:21.78 0.3 undecidable manual S 333 37.3293 90 -0.05 71
IV.CAMP.HHE. 2019-11-17T21:08:21.19 0.3 undecidable manual S 149 35.9418 90 -0.28 70
IV.CESI.HHE. 2019-11-17T21:08:20.11 0.3 undecidable manual S 313 30.9468 90 -0.02 72
IV.MF5.EHZ. 2019-11-17T21:08:20.59 0.3 undecidable manual S 49 29.5482 90 0.85 60
IV.FDMO.HHZ. 2019-11-17T21:08:18.59 0.3 undecidable manual S 342 25.8519 90 -0.16 70
IV.ASSB.HHN. 2019-11-17T21:08:18.47 0.3 undecidable manual P 301 49.617 90 0 71
IV.GIGS.HHN. 2019-11-17T21:08:18.65 0.6 undecidable manual P 142 51.1155 90 -0.06 47
IT.MTCL.HGZ. 2019-11-17T21:08:18.12 0.3 undecidable manual S 323 24.8529 90 -0.39 67
IV.ARRO.EHZ. 2019-11-17T21:08:17.25 0.3 undecidable manual P 233 42.9237 90 -0.19 70
IV.SMA1.EHZ. 2019-11-17T21:08:17.99 0.3 undecidable manual S 149 23.8539 90 -0.24 72
IV.MMO1.EHZ. 2019-11-17T21:08:16.02 0.3 undecidable manual S 51 14.9739 90 0.17 74
IV.CAMP.HHE. 2019-11-17T21:08:16.12 0.3 undecidable manual P 149 35.9418 90 -0.25 70
IV.FEMA.HNZ. 2019-11-17T21:08:16.98 0.3 undecidable manual S 326 19.6692 90 -0.13 72
IV.MTRA.EHZ. 2019-11-17T21:08:16.65 0.3 undecidable manual S 110 18.4704 90 -0.15 73
IV.TERO.HHZ. 2019-11-17T21:08:16.80 0.1 undecidable manual P 122 40.3263 90 -0.24 92
IV.MML1.HNE. 2019-11-17T21:08:16.43 0.3 undecidable manual P 333 37.3293 90 -0.15 70
IV.MF5.EHZ. 2019-11-17T21:08:15.94 0.3 undecidable manual P 49 29.5482 90 0.56 66
IV.CESI.HHE. 2019-11-17T21:08:15.50 0.1 undecidable manual P 313 30.9468 90 -0.1 95
IV.MC2.EHZ. 2019-11-17T21:08:15.10 0.3 undecidable manual S 2 10.7781 115 0.34 72
IV.SMA1.EHZ. 2019-11-17T21:08:14.45 0.3 undecidable manual P 149 23.8539 90 -0.05 74
IV.FDMO.HHZ. 2019-11-17T21:08:14.65 0.1 undecidable manual P 342 25.8519 90 -0.16 95
IV.MTRA.EHZ. 2019-11-17T21:08:14.03 0.3 undecidable manual P 110 18.4704 90 0.36 69
IT.MTCL.HGZ. 2019-11-17T21:08:14.47 0.1 undecidable manual P 323 24.8529 90 -0.19 94
IV.MMO1.EHZ. 2019-11-17T21:08:13.22 0.1 negative manual P 51 14.9739 90 0.09 100
IV.NRCA.HNZ. 2019-11-17T21:08:13.63 0.3 undecidable manual S 290 5.994 142 -0.15 74
IV.FEMA.HNZ. 2019-11-17T21:08:13.92 0.3 undecidable manual P 326 19.6692 90 0.07 74
IV.NRCA.HNZ. 2019-11-17T21:08:12.04 0.1 positive manual P 290 5.994 142 0.1 100
IV.MC2.EHZ. 2019-11-17T21:08:12.72 0.3 undecidable manual P 2 10.7781 115 0.22 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.8 0.0008526408 0.0768 AML other m 2019-11-17T21:08:14.30
IV.NRCA.HNE. ML:1.7 0.0007578278499999999 0.0896 AML other m 2019-11-17T21:08:14.29
IV.NRCA.HNN. ML:1.7 0.0007019195499999999 0.128 AML other m 2019-11-17T21:08:14.47
IV.NRCA.HHN. ML:1.7 0.0007506793000000001 0.1152 AML other m 2019-11-17T21:08:14.48
IV.MTRA.EHE. ML:1.4 0.00017813135 0.1664 AML other m 2019-11-17T21:08:17.32
IV.MTRA.HNN. ML:1.3 0.000147578605 0.192 AML other m 2019-11-17T21:08:17.81
IV.MTRA.EHN. ML:1.3 0.0001684818 0.192 AML other m 2019-11-17T21:08:17.82
IV.TERO.HNN. ML:1.4 0.000097055945 1.0016 AML other m 2019-11-17T21:08:19.12
IV.MTRA.HNE. ML:1.5 0.0002205801 0.3584 AML other m 2019-11-17T21:08:21.18
IV.TERO.HNE. ML:1.2 0.000053017925 0.7168 AML other m 2019-11-17T21:08:32.77
IV.TERO.HHE. ML:1.5 0.00010857072 1.5232 AML other m 2019-11-17T21:08:35.89
IV.TERO.HHN. ML:1.7 0.00015623769999999998 0.1056 AML other m 2019-11-17T21:08:36.17
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