Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 17-11-2016 and time 22:41:14 (Italy) in region 4 km NW Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Norcia (PG), on

  • 17-11-2016 21:41:14 (UTC)
  • 17-11-2016 22:41:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8220, 13.0600 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 4 4957 4957
Preci PG 7 724 5681
Castelsantangelo sul Nera MC 11 281 5962
Cerreto di Spoleto PG 12 1075 7037
Cascia PG 12 3217 10254
Visso MC 13 1107 11361
Sellano PG 13 1079 12440
Ussita MC 15 444 12884
Poggiodomo PG 16 117 13001
Vallo di Nera PG 17 364 13365
Monte Cavallo MC 20 145 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
98 Km N 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
Reviewed
Rev100 		ML 1.1 2016-11-17
21:41:14		 42.8217 13.0603 11 2016-11-17
21:54:15		 Sala Sismica INGV-Roma 33713901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-11-17 21:41:14 ± 0.03
Latitude 42.8217 ± 0.0018
Longitude 13.0603 ± 0.0037
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 33713901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 264
Semi-minor axis of confidence ellipse (meter) 174
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33275
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 33713901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-11-17 21:54:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SAMA.HHZ. 2016-11-17T21:41:36.48 3.0 undecidable manual P 0.7 0
IV.RM33.EHZ. 2016-11-17T21:41:26.55 0.6 undecidable manual S 160 36.9297 50 0.04 48
IV.T1243.HHZ. 2016-11-17T21:41:25.70 0.3 undecidable manual S 114 34.5432 50 -0.17 70
IV.CSP1.EHZ. 2016-11-17T21:41:25.33 0.3 undecidable manual S 21 32.1456 50 0.07 72
IV.T1256.HHZ. 2016-11-17T21:41:23.21 0.3 undecidable manual S 33 24.5532 50 0 74
IV.T1219.EHZ. 2016-11-17T21:41:23.50 0.3 undecidable manual S 350 26.3514 50 -0.2 71
IV.LNSS.HHZ. 2016-11-17T21:41:23.08 0.3 undecidable manual S 184 24.3534 50 -0.08 73
IV.FDMO.HHZ. 2016-11-17T21:41:23.00 0.3 undecidable manual S 5 23.9538 50 -0.05 73
IV.MMO1.EHZ. 2016-11-17T21:41:22.67 0.3 undecidable manual S 68 23.3544 50 -0.22 71
IV.CESI.HHZ. 2016-11-17T21:41:22.85 0.3 undecidable manual S 328 23.9538 50 -0.2 71
IV.T1218.EHZ. 2016-11-17T21:41:21.12 0.3 undecidable manual S 165 17.3715 122 -0.19 72
IV.T1243.HHZ. 2016-11-17T21:41:21.01 0.1 undecidable manual P 114 34.5432 50 0.08 95
IV.RM33.EHZ. 2016-11-17T21:41:21.49 0.1 undecidable manual P 160 36.9297 50 0.2 93
IV.CSP1.EHZ. 2016-11-17T21:41:20.68 0.1 negative manual P 21 32.1456 50 0.11 95
IV.FEMA.HNE. 2016-11-17T21:41:20.80 0.3 undecidable manual S 357 15.5733 125 0.01 75
IV.T1215.EHZ. 2016-11-17T21:41:20.58 0.3 undecidable manual S 262 15.7731 125 -0.25 71
IV.FDMO.HHZ. 2016-11-17T21:41:19.39 0.1 undecidable manual P 5 23.9538 50 0.09 97
IV.T1256.HHZ. 2016-11-17T21:41:19.39 0.1 undecidable manual P 33 24.5532 50 0 98
IV.T1245.HHZ. 2016-11-17T21:41:19.35 0.6 undecidable manual S 70 11.0778 135 -0.22 48
IV.MMO1.EHZ. 2016-11-17T21:41:19.20 0.1 positive manual P 68 23.3544 50 0 99
IV.T1219.EHZ. 2016-11-17T21:41:19.59 0.1 undecidable manual P 350 26.3514 50 -0.08 97
IV.CESI.HHZ. 2016-11-17T21:41:19.33 0.1 negative manual P 328 23.9538 50 0.03 98
IV.LNSS.HHZ. 2016-11-17T21:41:19.52 0.1 undecidable manual P 184 24.3534 50 0.16 95
IV.T1215.EHZ. 2016-11-17T21:41:18.04 0.1 positive manual P 262 15.7731 125 0.03 100
IV.T1218.EHZ. 2016-11-17T21:41:18.30 0.1 positive manual P 165 17.3715 122 0.01 100
IV.FEMA.HNE. 2016-11-17T21:41:18.26 0.1 undecidable manual P 357 15.5733 125 0.27 95
IV.NRCA.HNE. 2016-11-17T21:41:17.98 0.3 undecidable manual S 73 4.5954 157 -0.31 72
IV.T1216.EHZ. 2016-11-17T21:41:17.03 0.1 negative manual P 336 8.3805 143 0.1 99
IV.T1245.HHZ. 2016-11-17T21:41:17.49 0.1 undecidable manual P 70 11.0778 135 0.2 97
IV.NRCA.HNE. 2016-11-17T21:41:16.64 0.1 negative manual P 73 4.5954 157 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.000046897465 0.0896 AML other m 2016-11-17T21:41:23.38
IV.CESI.HHN. ML:1.0 0.000062618695 0.32 AML other m 2016-11-17T21:41:23.40
IV.FDMO.HHN. ML:1.1 0.00007515 0.12 AML other m 2016-11-17T21:41:23.47
IV.FDMO.HHE. ML:1.3 0.00011665 0.44 AML other m 2016-11-17T21:41:23.59
IV.LNSS.HHE. ML:0.6 0.00002674465 0 AML other m 2016-11-17T21:41:23.37
IV.LNSS.HHN. ML:1.2 0.000105426195 0.1024 AML other m 2016-11-17T21:41:23.92
IV.SAMA.HHN. ML:2.8 0.00043300000000000006 1.26 AML other m 2016-11-17T21:42:10.99
IV.SAMA.HHE. ML:2.8 0.00043400000000000003 0.06 AML other m 2016-11-17T21:42:10.97
IV.T1215.EHE. ML:1.1 0.0001215 0.06 AML other m 2016-11-17T21:41:20.84
IV.T1215.EHN. ML:1.0 0.00008499999999999997 1.54 AML other m 2016-11-17T21:41:21.64
IV.T1245.HHE. ML:1.5 0.00036899999999999997 0.66 AML other m 2016-11-17T21:41:19.66
IV.T1256.HHE. ML:0.9 0.00005110000000000001 1.18 AML other m 2016-11-17T21:41:23.57
IV.T1256.HHN. ML:0.8 0.00004045 1.24 AML other m 2016-11-17T21:41:24.39
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