INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.7 on date 14-09-2017 and time 01:03:01 (Italy) in region 8 km SE Norcia (PG)

A magnitude ML 1.7 earthquake occured in region: 8 km SE Norcia (PG), on

  • 13-09-2017 23:03:01 (UTC)
  • 14-09-2017 01:03:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.75, 13.17 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.

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 8 4957 4957
Accumoli RI 8 667 5624
Arquata del Tronto AP 11 1178 6802
Cascia PG 13 3217 10019
Cittareale RI 14 482 10501
Amatrice RI 16 2657 13158
Castelsantangelo sul Nera MC 17 281 13439
Montegallo AP 17 523 13962
Preci PG 18 724 14686
Poggiodomo PG 20 117 14803
Acquasanta Terme AP 20 2916 17719

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km W of Teramo (54892 inhabitants)
45 Km SE of Foligno (57155 inhabitants)
48 Km E of Terni (111501 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
75 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km W of Pescara (121014 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
93 Km W of Chieti (51815 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.7 2017-09-13
23:03:01
42.75 13.17 11 2017-09-13
23:12:00
Sala Sismica INGV-Roma 50058991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-09-13 23:03:01 ± 0.06
Latitude 42.75 ± 0.00
Longitude 13.17 ± 0.01
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 50058991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 561
Semi-minor axis of confidence ellipse (meter) 175
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 50058991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-09-13 23:12:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T1219.EHZ. 2017-09-13T23:03:13.90 0.6 undecidable manual S 339 0.3327 50 0.04 49
IV.ATCC.EHZ. 2017-09-13T23:03:13.12 0.6 positive manual P 319 0.5864 50 0.17 45
IV.TERO.HHZ. 2017-09-13T23:03:13.93 0.1 undecidable manual S 111 0.3408 50 -0.17 95
IV.FAGN.HHZ. 2017-09-13T23:03:13.23 0.6 positive manual P 148 0.5684 50 0.58 41
IV.CAMP.HHZ. 2017-09-13T23:03:12.01 0.1 undecidable manual S 140 0.2734 50 -0.1 97
IV.GIGS.HHZ. 2017-09-13T23:03:10.05 1.0 undecidable manual P 135 0.4155 50 0.01 24
IV.RM33.EHZ. 2017-09-13T23:03:10.89 0.1 undecidable manual S 172 0.2392 50 -0.2 96
IV.T1216.EHZ. 2017-09-13T23:03:09.55 0.1 undecidable manual S 322 0.1826 118 0.16 98
IV.ARRO.EHZ. 2017-09-13T23:03:09.00 0.6 negative manual P 241 0.3417 50 0.23 47
IV.MC2.EHZ. 2017-09-13T23:03:09.03 0.1 undecidable manual S 4 0.1655 120 0.22 97
IV.MMO1.EHZ. 2017-09-13T23:03:09.34 0.1 undecidable manual S 37 0.1907 50 -0.31 95
IV.SMA1.EHZ. 2017-09-13T23:03:09.35 0.1 undecidable manual S 134 0.1673 120 0.5 91
IV.GUMA.HHZ. 2017-09-13T23:03:09.28 0.3 positive manual P 21 0.3381 50 0.57 64
IV.TERO.HHZ. 2017-09-13T23:03:08.63 0.1 positive manual P 111 0.3408 50 -0.12 96
IV.T1219.EHZ. 2017-09-13T23:03:08.58 0.1 undecidable manual P 339 0.3327 50 -0.04 98
IV.T1299.EHZ. 2017-09-13T23:03:08.11 0.1 undecidable manual S 144 0.1385 125 0.19 98
IV.CAMP.HHZ. 2017-09-13T23:03:07.53 1.0 positive manual P 140 0.2734 50 -0.07 25
IV.FDMO.HHZ. 2017-09-13T23:03:07.97 0.6 positive manual P 348 0.2968 50 -0.03 49
IV.T1221.EHZ. 2017-09-13T23:03:07.44 1.0 negative manual P 296 0.2644 50 0 25
IV.RM33.EHZ. 2017-09-13T23:03:06.87 0.3 undecidable manual P 172 0.2392 50 -0.15 73
IV.T1299.EHZ. 2017-09-13T23:03:05.34 0.1 negative manual P 144 0.1385 125 0.16 98
IV.MMO1.EHZ. 2017-09-13T23:03:05.97 0.6 negative manual P 37 0.1907 50 -0.22 48
IV.SMA1.EHZ. 2017-09-13T23:03:05.69 0.6 negative manual P 134 0.1673 120 -0.03 50
IV.T1216.EHZ. 2017-09-13T23:03:05.76 1.0 undecidable manual P 322 0.1826 118 -0.27 24
IV.MTRA.EHZ. 2017-09-13T23:03:05.75 0.1 undecidable manual P 86 0.1655 120 0.06 100
IV.MC2.EHZ. 2017-09-13T23:03:05.81 0.3 positive manual P 4 0.1655 120 0.12 74
IV.T1218.EHZ. 2017-09-13T23:03:04.15 0.6 negative manual P 209 0.0863 138 -0.17 50
IV.T1213.EHZ. 2017-09-13T23:03:03.35 0.3 positive manual P 238 0.0396 157 -0.4 72
IV.T1214.EHZ. 2017-09-13T23:03:03.01 0.1 positive manual P 64 0.0306 162 -0.67 88
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1214.EHN. ML:2.5 0.00531 0.22 AML other m 2017-09-13T23:03:03.87
IV.T1214.HNN. ML:2.5 0.0054 0.1 AML other m 2017-09-13T23:03:03.87
IV.T1214.EHE. ML:2.5 0.005595 0.16 AML other m 2017-09-13T23:03:03.86
IV.T1214.HNE. ML:2.6 0.006045 0.16 AML other m 2017-09-13T23:03:03.94
IV.T1213.HNE. ML:2.2 0.00286 0.16 AML other m 2017-09-13T23:03:04.88
IV.T1213.HNN. ML:2.2 0.00235 0.86 AML other m 2017-09-13T23:03:05.27
IV.T1218.HNN. ML:1.8 0.000787 0.46 AML other m 2017-09-13T23:03:06.75
IV.T1218.EHN. ML:1.8 0.000819 0.44 AML other m 2017-09-13T23:03:06.75
IV.T1218.HNE. ML:1.6 0.0005575 1.58 AML other m 2017-09-13T23:03:07.91
IV.T1218.EHE. ML:1.6 0.000515 1.6 AML other m 2017-09-13T23:03:07.92
IV.T1299.EHE. ML:1.6 0.000369 0.3 AML other m 2017-09-13T23:03:08.51
IV.T1299.EHN. ML:1.9 0.0007215 0.28 AML other m 2017-09-13T23:03:08.45
IV.T1299.HNN. ML:1.9 0.000719 0.48 AML other m 2017-09-13T23:03:09.07
IV.T1299.HNE. ML:1.6 0.000362 0.5 AML other m 2017-09-13T23:03:10.25
IV.RM33.EHN. ML:1.8 0.000372 0.22 AML other m 2017-09-13T23:03:11.20
IV.RM33.HNN. ML:1.8 0.0003795 0.22 AML other m 2017-09-13T23:03:11.20
IV.T1216.EHN. ML:1.8 0.0004935 0.52 AML other m 2017-09-13T23:03:11.33
IV.RM33.HNE. ML:1.7 0.000279 0.6 AML other m 2017-09-13T23:03:11.20
IV.RM33.EHE. ML:1.7 0.000267 0.6 AML other m 2017-09-13T23:03:11.21
IV.T1216.EHE. ML:1.8 0.0004545 0.34 AML other m 2017-09-13T23:03:11.70
IV.SMA1.EHN. ML:2 0.000731 0.42 AML other m 2017-09-13T23:03:12.35
IV.CAMP.HHN. ML:1.1 6.315E-5 0.54 AML other m 2017-09-13T23:03:14.10
IV.CAMP.HHE. ML:1.2 7.26E-5 0.4 AML other m 2017-09-13T23:03:14.20
IV.TERO.HHN. ML:1.7 0.000172 0.12 AML other m 2017-09-13T23:03:14.32
IV.SMA1.EHE. ML:1.8 0.0005835 0.48 AML other m 2017-09-13T23:03:14.26
IV.TERO.HHE. ML:1.5 0.0001215 0.14 AML other m 2017-09-13T23:03:14.61
IV.FDMO.HHE. ML:1.3 8.36E-5 0.38 AML other m 2017-09-13T23:03:15.04
IV.ARRO.EHE. ML:1 4.09E-5 0.62 AML other m 2017-09-13T23:03:15.83
IV.FDMO.HHN. ML:1.3 8.515E-5 0.6 AML other m 2017-09-13T23:03:15.69
IV.ARRO.EHN. ML:1 4.14E-5 0.96 AML other m 2017-09-13T23:03:16.93
IV.GUMA.HHN. ML:1.7 0.000199 0.64 AML other m 2017-09-13T23:03:16.45
IV.GUMA.HNN. ML:2 0.0003775 0.84 AML other m 2017-09-13T23:03:17.14
IV.GIGS.HHN. ML:0.9 2.445E-5 0.46 AML other m 2017-09-13T23:03:18.27
IV.GIGS.HHE. ML:0.7 1.705E-5 0.42 AML other m 2017-09-13T23:03:18.06
IV.GUMA.HHE. ML:1.8 0.0002135 0.3 AML other m 2017-09-13T23:03:19.68
IV.GUMA.HNE. ML:1.9 0.000271 0.4 AML other m 2017-09-13T23:03:21.44
IV.ATCC.EHN. ML:1.2 2.82E-5 0.3 AML other m 2017-09-13T23:03:26.03
IV.FAGN.HHN. ML:1.6 8.645E-5 0.4 AML other m 2017-09-13T23:03:28.32
IV.FAGN.HHE. ML:1.7 0.0001014 0.42 AML other m 2017-09-13T23:03:31.06
IV.ATCC.EHE. ML:1.3 3.535E-5 0.62 AML other m 2017-09-13T23:03:40.90
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download