Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 04-11-2019 and time 17:54:40 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km NE Norcia (PG), on

  • 04-11-2019 16:54:40 (UTC)
  • 04-11-2019 17:54:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8150, 13.1190 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 3 4957 4957
Castelsantangelo sul Nera MC 9 281 5238
Preci PG 10 724 5962
Visso MC 13 1107 7069
Cascia PG 14 3217 10286
Ussita MC 15 444 10730
Arquata del Tronto AP 15 1178 11908
Cerreto di Spoleto PG 17 1075 12983
Accumoli RI 17 667 13650
Sellano PG 18 1079 14729
Montegallo AP 18 523 15252
Poggiodomo PG 19 117 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
48 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)
91 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km W of Pescara (121014 inhabitants)
98 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 1.1 2019-11-04
16:54:40		 42.8148 13.1193 11 2020-02-28
16:42:10		 Bollettino Sismico Italiano INGV 74146971
Reviewed
Rev100 		ML 1.6 2019-11-04
16:54:40		 42.8153 13.1153 11 2019-11-04
17:01:20		 Sala Sismica INGV-Roma 73642141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-04 16:54:40 ± 0.05
Latitude 42.8148 ± 0.0027
Longitude 13.1193 ± 0.0061
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 74146971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 561
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31746
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 73642141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-04 17:01:20

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 74146971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-11-29 09:40:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2019-11-04T16:55:01.92 3.0 undecidable manual P -1.46 0
IV.MURB.HNZ. 2019-11-04T16:54:55.12 3.0 undecidable manual P 0.59 0
IV.MML1.HNE. 2019-11-04T16:54:53.04 0.3 undecidable manual S 340 35.2425 50 0.13 70
IV.RM33.EHZ. 2019-11-04T16:54:53.11 0.3 undecidable manual S 167 34.8429 50 0.31 68
IV.CSP1.EHZ. 2019-11-04T16:54:51.91 0.3 undecidable manual S 13 31.4463 50 0 73
IV.CESI.HHZ. 2019-11-04T16:54:50.83 0.3 undecidable manual S 320 27.3504 50 0.02 73
IV.SMA1.EHZ. 2019-11-04T16:54:50.49 0.3 undecidable manual S 139 26.9508 50 -0.22 70
IT.MTCL.HGZ. 2019-11-04T16:54:49.23 0.1 undecidable manual S 334 22.1556 50 -0.18 95
IV.FDMO.HHZ. 2019-11-04T16:54:49.90 0.3 undecidable manual S 354 24.753 50 -0.2 71
IV.RM33.EHZ. 2019-11-04T16:54:47.68 0.1 undecidable manual P 167 34.8429 50 -0.11 94
IV.MML1.HNE. 2019-11-04T16:54:47.85 0.3 undecidable manual P 340 35.2425 50 0 72
IV.CSP1.EHZ. 2019-11-04T16:54:47.28 0.1 positive manual P 13 31.4463 50 0 97
IV.FDMO.HHZ. 2019-11-04T16:54:46.21 0.1 positive manual P 354 24.753 50 -0.02 98
IV.SMA1.EHZ. 2019-11-04T16:54:46.57 0.1 undecidable manual P 139 26.9508 50 -0.01 98
IV.MC2.EHZ. 2019-11-04T16:54:46.72 0.1 undecidable manual S 28 12.0768 131 0.17 97
IV.CESI.HHZ. 2019-11-04T16:54:46.86 0.1 undecidable manual P 320 27.3504 50 0.22 94
IT.MTCL.HGZ. 2019-11-04T16:54:45.84 0.1 undecidable manual P 334 22.1556 50 0.01 99
IV.MMO1.EHN. 2019-11-04T16:54:45.31 0.3 undecidable manual P 61 19.2696 119 -0.06 74
IV.NRCA.HHZ. 2019-11-04T16:54:44.43 0.1 undecidable manual S 349 2.0979 169 -0.3 96
IV.MC2.EHZ. 2019-11-04T16:54:44.34 0.1 positive manual P 28 12.0768 131 0.15 97
IV.NRCA.HHZ. 2019-11-04T16:54:43.24 0.1 positive manual P 349 2.0979 169 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.5 0.00053016975 0.128 AML other m 2019-11-04T16:54:45.38
IV.NRCA.HNN. ML:1.5 0.00063030815 0.1664 AML other m 2019-11-04T16:54:44.58
IV.NRCA.HHN. ML:1.5 0.0006468192 0.1408 AML other m 2019-11-04T16:54:44.58
IV.NRCA.HHE. ML:1.5 0.00057800995 0.1408 AML other m 2019-11-04T16:54:45.32
IV.FDMO.HHE. ML:0.9 0.000042765759 0.2304 AML other m 2019-11-04T16:54:50.78
IV.FDMO.HHN. ML:0.9 0.00005169973999999999 0.2048 AML other m 2019-11-04T16:54:50.55
IV.SMA1.EHE. ML:1.1 0.0000650765 0.7808 AML other m 2019-11-04T16:54:50.71
IV.SMA1.EHN. ML:0.9 0.000039883685000000005 0.4224 AML other m 2019-11-04T16:54:54.18
IV.CESI.HHE. ML:0.9 0.000037591575 0.1152 AML other m 2019-11-04T16:54:51.40
IV.CESI.HHN. ML:0.9 0.00004250429 0.0768 AML other m 2019-11-04T16:54:51.49
IV.CESI.HNE. ML:1.2 0.00007959382 0.6912 AML other m 2019-11-04T16:54:51.49
IV.CESI.HNN. ML:1.1 0.00006019435 1.4592 AML other m 2019-11-04T16:54:50.64
IV.CSP1.EHN. ML:1.1 0.000056485405 0.3456 AML other m 2019-11-04T16:54:52.42
IV.CSP1.EHE. ML:1.0 0.000039283659 0.0768 AML other m 2019-11-04T16:54:52.10
IV.RM33.HNN. ML:1.2 0.000072320715 0.9344 AML other m 2019-11-04T16:54:53.24
IV.RM33.EHE. ML:1.1 0.00005057921999999999 1.4976 AML other m 2019-11-04T16:54:52.43
IV.RM33.HNE. ML:1.5 0.00013879024 1.792 AML other m 2019-11-04T16:54:53.56
IV.RM33.EHN. ML:0.9 0.000032580735 0.96 AML other m 2019-11-04T16:54:49.78
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