Earthquake with magnitude of Md 1.1 on date 17-09-2016 and time 18:21:59 (Italy) in region 2 km SE Norcia (PG)

A magnitude Md 1.1 earthquake occured in region: 2 km SE Norcia (PG), on

  • 17-09-2016 16:21:59 (UTC)
  • 17-09-2016 18:21:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7810, 13.1160 at 0 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.

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 2 4957 4957
Cascia PG 11 3217 8174
Preci PG 13 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Accumoli RI 14 667 9846
Arquata del Tronto AP 15 1178 11024
Poggiodomo PG 17 117 11141
Cerreto di Spoleto PG 17 1075 12216
Visso MC 17 1107 13323
Ussita MC 18 444 13767
Cittareale RI 18 482 14249
Montegallo AP 19 523 14772
Sellano PG 20 1079 15851
Monteleone di Spoleto PG 20 599 16450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 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 1.1 2016-09-17
16:21:59
42.7812 13.1163 0 2016-09-17
16:28:27
Sala Sismica INGV-Roma 29151361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-17 16:21:59 ± 0.1
Latitude 42.7812 ± 0.0045
Longitude 13.1163 ± 0.0061
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29151361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 620
Semi-minor axis of confidence ellipse (meter) 370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18706
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 8
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 29151361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-17 16:28:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SENI.HNZ. 2016-09-17T16:22:30.99 3.0 undecidable manual S -0.28 0
IV.FIAM.HHZ. 2016-09-17T16:22:19.99 3.0 undecidable manual S 0.24 0
IV.T1215.EHZ. 2016-09-17T16:22:06.87 0.6 undecidable manual S 277 20.2686 91 0.17 47
IV.MC2.EHZ. 2016-09-17T16:22:05.28 0.6 undecidable manual S 22 15.5733 91 0.2 47
IV.T1217.EHZ. 2016-09-17T16:22:05.01 0.6 undecidable manual S 243 16.872 91 -0.52 44
IV.CSP1.EHZ. 2016-09-17T16:22:05.86 3.0 undecidable manual P 0.56 0
IV.LNSS.HHZ. 2016-09-17T16:22:04.25 0.3 undecidable manual P 197 20.7681 91 0.44 67
IV.T1215.EHZ. 2016-09-17T16:22:03.50 1.0 negative manual P 277 20.2686 91 -0.23 23
IV.T1217.EHZ. 2016-09-17T16:22:03.17 1.0 undecidable manual P 243 16.872 91 0.12 24
IV.MC2.EHZ. 2016-09-17T16:22:02.77 1.0 undecidable manual P 22 15.5733 91 -0.02 25
IV.T1242.HHZ. 2016-09-17T16:22:02.65 0.6 undecidable manual S 53 8.88 92 -0.11 49
IV.T1216.EHZ. 2016-09-17T16:22:02.55 1.0 undecidable manual P 327 14.4744 91 -0.01 25
IV.T1242.HHZ. 2016-09-17T16:22:01.26 0.3 positive manual P 53 8.88 92 -0.19 72
IV.T1202.EHZ. 2016-09-17T16:22:01.95 1.0 negative manual P 134 12.3765 92 -0.19 24
IV.NRCA.HHZ. 2016-09-17T16:22:01.76 0.6 undecidable manual S 358 5.7942 94 0.08 49
IV.NRCA.HHZ. 2016-09-17T16:22:00.83 0.1 undecidable manual P 358 5.7942 94 0 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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