Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 11-10-2019 and time 03:45:23 (Italy) in region 3 km E Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 3 km E Norcia (PG), on

  • 11-10-2019 01:45:23 (UTC)
  • 11-10-2019 03:45:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8020, 13.1270 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 14 1178 10357
Visso MC 15 1107 11464
Accumoli RI 15 667 12131
Ussita MC 16 444 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 18 523 14173
Poggiodomo PG 19 117 14290
Sellano PG 19 1079 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km SE 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)
99 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
Reviewed
Rev100 		ML 1.0 2019-10-11
01:45:23		 42.8017 13.1272 11 2019-10-11
01:52:15		 Sala Sismica INGV-Roma 73186871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-11 01:45:23 ± 0.07
Latitude 42.8017 ± 0.0027
Longitude 13.1272 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73186871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 411
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 20
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) 0.30667
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 73186871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-11 01:52:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2019-10-11T01:45:58.73 3.0 undecidable manual S -0.36 0
IV.MOMA.HHZ. 2019-10-11T01:45:39.45 3.0 undecidable manual S 0.38 0
IV.MF5.EHZ. 2019-10-11T01:45:36.09 0.6 undecidable manual S 52 34.0437 50 0.71 40
IV.CSP1.EHZ. 2019-10-11T01:45:35.10 0.3 undecidable manual S 11 32.8449 50 0.05 72
IV.RM33.EHZ. 2019-10-11T01:45:35.14 0.6 undecidable manual S 168 33.2445 50 -0.03 48
IV.EL6.EHZ. 2019-10-11T01:45:34.39 3.0 negative manual P 0.27 0
IV.MNTT.EHZ. 2019-10-11T01:45:33.52 3.0 negative manual P 0.91 0
IV.CESI.HNZ. 2019-10-11T01:45:33.98 0.3 undecidable manual S 321 28.9488 50 -0.03 73
IV.FDMO.HHZ. 2019-10-11T01:45:33.13 0.3 undecidable manual S 353 26.2515 50 -0.18 71
IV.SMA1.EHZ. 2019-10-11T01:45:32.96 0.6 undecidable manual S 138 25.4523 50 -0.13 48
IV.T1299.EHZ. 2019-10-11T01:45:32.35 0.3 undecidable manual S 146 22.4553 50 0.06 73
IV.MTRA.HNZ. 2019-10-11T01:45:32.00 0.3 undecidable manual S 103 22.4553 50 -0.3 70
IV.LNSS.HHZ. 2019-10-11T01:45:32.70 0.3 undecidable manual S 198 23.1546 50 0.22 71
IV.ARRO.EHZ. 2019-10-11T01:45:31.44 3.0 positive manual P 0.36 0
IV.RM33.EHZ. 2019-10-11T01:45:30.30 0.3 undecidable manual P 168 33.2445 50 -0.07 72
IV.MF5.EHZ. 2019-10-11T01:45:30.74 0.3 undecidable manual P 52 34.0437 50 0.25 69
IV.CSP1.EHZ. 2019-10-11T01:45:30.22 0.1 undecidable manual P 11 32.8449 50 -0.09 95
IV.CESI.HNZ. 2019-10-11T01:45:29.77 0.3 undecidable manual P 321 28.9488 50 0.06 72
IV.FDMO.HHZ. 2019-10-11T01:45:29.20 0.1 undecidable manual P 353 26.2515 50 -0.1 96
IV.MC2.EHZ. 2019-10-11T01:45:29.79 0.3 undecidable manual S 22 13.1757 130 0 75
IV.SMA1.EHZ. 2019-10-11T01:45:29.22 0.3 undecidable manual P 138 25.4523 50 0.05 73
IV.LNSS.HHZ. 2019-10-11T01:45:28.79 0.1 undecidable manual P 198 23.1546 50 -0.03 98
IV.T1299.EHZ. 2019-10-11T01:45:28.77 0.1 undecidable manual P 146 22.4553 50 0.06 98
IV.MTRA.HNZ. 2019-10-11T01:45:28.51 0.3 undecidable manual P 103 22.4553 50 -0.21 71
IV.MC2.EHZ. 2019-10-11T01:45:27.29 0.1 undecidable manual P 22 13.1757 130 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.5 0.000189 0.38 AML other m 2019-10-11T01:45:33.05
IV.LNSS.HHN. ML:1.4 0.00017549999999999998 0.14 AML other m 2019-10-11T01:45:33.16
IV.FDMO.HHE. ML:0.9 0.00003905 0.16 AML other m 2019-10-11T01:45:33.52
IV.FDMO.HHN. ML:1.0 0.0000485 0.14 AML other m 2019-10-11T01:45:34.14
IV.LNSS.HNE. ML:1.4 0.00016415205 0.1096 AML other m 2019-10-11T01:45:33.29
IV.SMA1.EHE. ML:0.8 0.00004053708 2.46 AML other m 2019-10-11T01:45:35.58
IV.CSP1.EHN. ML:0.8 0.000030048535 0.16 AML other m 2019-10-11T01:45:36.97
IV.RM33.EHE. ML:0.8 0.0000312796 0.16 AML other m 2019-10-11T01:45:36.36
IV.RM33.EHN. ML:0.8 0.000026030900000000002 0.16 AML other m 2019-10-11T01:45:36.53
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