Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 16-11-2019 and time 23:58:12 (UTC) in region 6 km E Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 6 km E Norcia (PG), on

  • 16-11-2019 23:58:12 (UTC)
  • 17-11-2019 00:58:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8050, 13.1690 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 6 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Arquata del Tronto AP 11 1178 6416
Preci PG 13 724 7140
Accumoli RI 14 667 7807
Montegallo AP 14 523 8330
Visso MC 16 1107 9437
Ussita MC 16 444 9881
Cascia PG 16 3217 13098
Montemonaco AP 17 604 13702

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
98 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 0.9 2019-11-16
23:58:12		 42.8052 13.1687 9 2020-02-28
16:42:17		 Bollettino Sismico Italiano INGV 75111341
Reviewed
Rev100 		ML 0.9 2019-11-16
23:58:12		 42.7955 13.1633 9 2019-11-17
00:19:35		 Sala Sismica INGV-Roma 73885301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-16 23:58:12 ± 0.1
Latitude 42.8052 ± 0.0045
Longitude 13.1687 ± 0.0074
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75111341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 695
Semi-minor axis of confidence ellipse (meter) 228
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36782
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73885301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-17 00:19:35

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 75111341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-30 10:05:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.KOSI.HHZ. 2019-11-16T23:59:57.60 3.0 undecidable manual Sn -5.32 0
IV.SARZ.HHZ. 2019-11-16T23:59:56.06 3.0 undecidable manual Sn -4.32 0
IV.MBAL.EHZ. 2019-11-16T23:59:45.55 3.0 undecidable manual Sn -4.65 0
GU.REMY.HHZ. 2019-11-16T23:59:40.11 3.0 positive manual Pn 4.37 0
IV.MRGE.HHZ. 2019-11-16T23:59:40.35 3.0 positive manual Pn 4.31 0
GU.BLANC.HHZ. 2019-11-16T23:59:39.69 3.0 negative manual Pn 2.07 0
IV.CMDO.HHZ. 2019-11-16T23:59:35.57 3.0 undecidable manual Pn -1.25 0
IV.NDIM.HHZ. 2019-11-16T23:59:31.72 3.0 undecidable manual Sn -2.19 0
IX.CSG3.HNZ.01 2019-11-16T23:59:31.50 3.0 undecidable manual Sg -0.7 0
IV.ECTS.EHZ. 2019-11-16T23:59:27.41 3.0 undecidable manual Pn -6.11 0
OT.OT14.EHZ. 2019-11-16T23:59:25.90 3.0 undecidable manual Sg 4.47 0
IV.MTMR.EHZ. 2019-11-16T23:59:25.51 3.0 undecidable manual Sg 0.25 0
IV.FNVD.HHZ. 2019-11-16T23:59:21.07 3.0 undecidable manual Sg 2.22 0
GU.CANO.HHZ. 2019-11-16T23:59:19.15 3.0 negative manual Pn 2.63 0
IV.SEI.HHZ. 2019-11-16T23:59:12.38 3.0 undecidable manual Sg -1.51 0
IV.MOCL.EHZ. 2019-11-16T23:59:12.50 3.0 undecidable manual Sg -3.11 0
IV.PTRJ.HHZ. 2019-11-16T23:59:11.59 3.0 undecidable manual Sg 0.2 0
IV.LAV9.HHZ. 2019-11-16T23:58:50.36 3.0 undecidable manual S -8.97 0
IV.SEI.HHZ. 2019-11-16T23:58:45.93 3.0 undecidable manual Pg -2.2 0
IV.BARO.EHZ. 2019-11-16T23:58:43.82 3.0 undecidable manual S -9.99 0
IV.VVLD.HHZ. 2019-11-16T23:58:35.11 3.0 positive manual P -0.97 0
IV.MMUR.HNZ. 2019-11-16T23:58:32.93 3.0 undecidable manual S -6.78 0
IV.TERO.HHZ. 2019-11-16T23:58:25.73 0.3 undecidable manual S 120 40.8258 50 -0.52 66
IV.MF5.EHZ. 2019-11-16T23:58:24.24 0.3 undecidable manual S 49 31.1466 50 0.58 65
IV.CSP1.EHZ. 2019-11-16T23:58:23.94 0.3 undecidable manual S 5 31.9458 50 0.07 74
IV.FDMO.HHZ. 2019-11-16T23:58:22.22 0.3 undecidable manual S 346 26.4513 110 -0.05 75
IT.MTCL.HGZ. 2019-11-16T23:58:21.60 0.6 undecidable manual S 327 25.0527 111 -0.2 48
IV.TERO.HHZ. 2019-11-16T23:58:20.05 0.3 undecidable manual P 120 40.8258 50 -0.4 68
IV.T1299.EHZ. 2019-11-16T23:58:20.87 0.6 undecidable manual S 154 21.0678 114 0.34 47
IV.MF5.EHZ. 2019-11-16T23:58:19.20 0.3 undecidable manual P 49 31.1466 50 0.25 71
IV.MMO1.EHZ. 2019-11-16T23:58:19.01 0.3 undecidable manual S 51 16.5723 120 -0.12 75
IV.MTRA.EHZ. 2019-11-16T23:58:19.84 0.3 undecidable manual S 106 19.3695 116 -0.13 74
IV.FDMO.HHZ. 2019-11-16T23:58:18.09 0.3 undecidable manual P 346 26.4513 110 -0.05 75
IV.CSP1.EHZ. 2019-11-16T23:58:18.93 0.3 undecidable manual P 5 31.9458 50 -0.14 73
IT.MTCL.HGZ. 2019-11-16T23:58:17.77 0.3 undecidable manual P 327 25.0527 111 -0.1 74
IV.T1299.EHZ. 2019-11-16T23:58:17.44 0.1 undecidable manual P 154 21.0678 114 0.29 96
IV.MTRA.EHZ. 2019-11-16T23:58:16.73 0.3 undecidable manual P 106 19.3695 116 -0.09 75
IV.NRCA.HNZ. 2019-11-16T23:58:16.14 0.3 undecidable manual S 306 5.3946 150 -0.14 76
IV.MMO1.EHZ. 2019-11-16T23:58:16.38 0.3 undecidable manual P 51 16.5723 120 0.05 76
IV.NRCA.HNZ. 2019-11-16T23:58:14.90 0.1 undecidable manual P 306 5.3946 150 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:0.8 0.00005200598 1.6768 AML other m 2019-11-16T23:58:20.04
IV.MTRA.HNE. ML:1.0 0.00007432927 0.9632 AML other m 2019-11-16T23:58:20.03
IV.MTRA.HNN. ML:0.9 0.0000628106385 0.384 AML other m 2019-11-16T23:58:20.60
IV.MTRA.EHN. ML:0.7 0.000034250195 0.0768 AML other m 2019-11-16T23:58:20.84
IV.FDMO.HHN. ML:0.8 0.000036578804999999996 1.1072 AML other m 2019-11-16T23:58:24.07
IV.FDMO.HHE. ML:0.6 0.000023756225 1.0016 AML other m 2019-11-16T23:58:24.60
IV.TERO.HHN. ML:1.2 0.000054177324999999995 0.5152 AML other m 2019-11-16T23:58:25.53
IV.TERO.HHE. ML:0.9 0.000025958465 1.2416 AML other m 2019-11-16T23:58:26.62
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