Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.4 on date 17-09-2016 and time 12:00:09 (Italy) in region 5 km SE Norcia (PG)

A magnitude Md 1.4 earthquake occured in region: 5 km SE Norcia (PG), on

  • 17-09-2016 10:00:09 (UTC)
  • 17-09-2016 12:00:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7690, 13.1420 at 2 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 5 4957 4957
Accumoli RI 12 667 5624
Cascia PG 12 3217 8841
Arquata del Tronto AP 13 1178 10019
Castelsantangelo sul Nera MC 14 281 10300
Preci PG 15 724 11024
Cittareale RI 17 482 11506
Montegallo AP 18 523 12029
Poggiodomo PG 18 117 12146
Visso MC 19 1107 13253
Cerreto di Spoleto PG 19 1075 14328
Ussita MC 20 444 14772
Amatrice RI 20 2657 17429

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SE of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
72 Km SE of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
94 Km W of Pescara (121014 inhabitants)
96 Km W of Chieti (51815 inhabitants)
99 Km SW of Ancona (100861 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 		Md 1.4 2016-09-17
10:00:09		 42.7693 13.1422 2 2016-09-17
10:31:44		 Sala Sismica INGV-Roma 29139401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-17 10:00:09 ± 0.13
Latitude 42.7693 ± 0.0036
Longitude 13.1422 ± 0.0061
Depth (km) 2 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29139401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 470
Semi-minor axis of confidence ellipse (meter) 226
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32555
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 29139401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-17 10:31:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1246.HHZ. 2016-09-17T10:00:21.86 0.6 undecidable manual S 126 35.2425 94 0.03 50
IV.CSP1.EHZ. 2016-09-17T10:00:21.69 0.6 undecidable manual S 8 36.1416 94 -0.44 46
IV.FDMO.HHZ. 2016-09-17T10:00:20.10 0.6 undecidable manual S 351 29.9478 94 0.1 50
IV.RM33.HNZ. 2016-09-17T10:00:20.19 0.3 undecidable manual S 168 29.4483 95 0.36 71
IV.T1241.HNZ. 2016-09-17T10:00:18.71 0.3 undecidable manual S 68 25.4523 95 0.29 72
IV.T1215.EHZ. 2016-09-17T10:00:17.58 0.3 undecidable manual S 279 22.5552 96 0.14 75
IV.CSP1.EHZ. 2016-09-17T10:00:16.63 0.1 undecidable manual P 8 36.1416 94 -0.19 97
IV.T1246.HHZ. 2016-09-17T10:00:16.25 0.1 undecidable manual P 126 35.2425 94 -0.4 93
IV.FDMO.HHZ. 2016-09-17T10:00:15.72 1.0 positive manual P 351 29.9478 94 0.13 25
IV.RM33.HNZ. 2016-09-17T10:00:15.35 0.1 undecidable manual P 168 29.4483 95 -0.14 99
IV.MC2.EHZ. 2016-09-17T10:00:15.93 0.3 undecidable manual S 14 16.1727 98 0.68 66
IV.T1241.HNZ. 2016-09-17T10:00:14.56 0.1 undecidable manual P 68 25.4523 95 -0.12 100
IV.T1215.EHZ. 2016-09-17T10:00:14.26 0.1 undecidable manual P 279 22.5552 96 0.15 100
IV.MC2.EHZ. 2016-09-17T10:00:13.07 0.6 positive manual P 14 16.1727 98 0.22 50
XO.AM05.EHZ. 2016-09-17T10:00:13.03 3.0 undecidable manual P -1.28 0
IV.T1242.HHZ. 2016-09-17T10:00:12.58 0.3 undecidable manual S 37 8.3805 106 0 79
IV.NRCA.HHZ. 2016-09-17T10:00:11.96 0.3 undecidable manual S 342 7.4814 107 -0.32 74
IV.T1242.HHZ. 2016-09-17T10:00:11.45 0.6 undecidable manual P 37 8.3805 106 0.14 51
IV.NRCA.HHZ. 2016-09-17T10:00:10.78 0.6 negative manual P 342 7.4814 107 -0.35 49
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