Earthquake with magnitude of ML 1.1 on date 17-10-2019 and time 20:57:10 (UTC) in region 1 km E Vallo di Nera (PG)

A magnitude ML 1.1 earthquake occured in region: 1 km E Vallo di Nera (PG), on

  • 17-10-2019 20:57:10 (UTC)
  • 17-10-2019 22:57:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.77, 12.88 at 9 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
Vallo di Nera PG 1 364 364
Sant'Anatolia di Narco PG 5 564 928
Cerreto di Spoleto PG 6 1075 2003
Scheggino PG 7 461 2464
Poggiodomo PG 8 117 2581
Campello sul Clitunno PG 10 2442 5023
Spoleto PG 12 38218 43241
Cascia PG 13 3217 46458
Sellano PG 14 1079 47537
Monteleone di Spoleto PG 15 599 48136
Trevi PG 16 8469 56605
Castel Ritaldi PG 18 3278 59883
Norcia PG 18 4957 64840
Preci PG 18 724 65564
Ferentillo TR 18 1913 67477

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SE of Foligno (57155 inhabitants)
30 Km NE of Terni (111501 inhabitants)
55 Km SE of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
69 Km W of Teramo (54892 inhabitants)
74 Km NE of Viterbo (67173 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
90 Km N of Tivoli (56533 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 1.1 2019-10-17
20:57:10
42.77 12.88 9 2019-10-17
21:03:22
Sala Sismica INGV-Roma 73313821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-17 20:57:10 ± 0.06
Latitude 42.77 ± 0.00
Longitude 12.88 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73313821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 298
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.18436
Epicentral distance of station farthest from the epicenter (degree) 0.44966
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 73313821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-17 21:03:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2019-10-17T20:57:26.87 0.6 undecidable manual S 337 0.4497 50 0.19 46
IV.CSP1.EHZ. 2019-10-17T20:57:25.22 0.6 undecidable manual S 37 0.4002 50 -0.01 49
IV.SMA1.EHZ. 2019-10-17T20:57:24.59 0.6 undecidable manual S 112 0.3642 50 0.45 45
IV.RM33.EHZ. 2019-10-17T20:57:23.90 0.6 undecidable manual S 136 0.3597 50 -0.13 48
IV.MMO1.EHZ. 2019-10-17T20:57:23.55 0.6 undecidable manual S 68 0.3534 50 -0.28 46
IV.FDMO.HHZ. 2019-10-17T20:57:22.15 0.6 undecidable manual S 30 0.3067 50 -0.3 47
IV.CESX.HHN. 2019-10-17T20:57:21.12 0.6 undecidable manual S 233 0.268 50 -0.18 48
IV.MC2.EHZ. 2019-10-17T20:57:21.27 0.6 undecidable manual S 58 0.268 50 -0.03 50
IV.MOMA.HHZ. 2019-10-17T20:57:20.46 0.6 undecidable manual S 279 0.2284 110 0.58 44
IV.CESI.HHZ. 2019-10-17T20:57:20.10 0.6 undecidable manual S 5 0.2347 110 -0.03 50
IT.GNU.HGZ. 2019-10-17T20:57:20.25 0.6 undecidable manual S 279 0.2275 110 0.37 47
IV.ARRO.EHN. 2019-10-17T20:57:19.12 0.6 undecidable manual S 203 0.2077 112 -0.05 50
IV.ATCC.EHZ. 2019-10-17T20:57:19.96 0.6 negative manual P 337 0.4497 50 0.12 47
IT.MTCL.HGN. 2019-10-17T20:57:19.97 0.6 undecidable manual S 22 0.2401 109 -0.36 47
IV.FEMA.HNN. 2019-10-17T20:57:19.82 0.3 undecidable manual S 33 0.2293 110 -0.1 74
IV.SMA1.EHZ. 2019-10-17T20:57:18.98 0.1 undecidable manual P 112 0.3642 50 0.59 85
IV.MMO1.EHZ. 2019-10-17T20:57:18.19 0.6 positive manual P 68 0.3534 50 -0.02 49
IV.NRCA.HHZ. 2019-10-17T20:57:18.22 0.6 undecidable manual S 70 0.1844 115 -0.11 50
IV.RM33.EHZ. 2019-10-17T20:57:18.27 1.0 negative manual P 136 0.3597 50 -0.04 24
IV.LNSS.HHZ. 2019-10-17T20:57:18.96 0.6 undecidable manual S 144 0.2059 112 -0.12 50
IV.CSP1.EHZ. 2019-10-17T20:57:18.98 1.0 negative manual P 37 0.4002 50 -0.03 24
IV.FDMO.HHZ. 2019-10-17T20:57:17.30 0.6 positive manual P 30 0.3067 50 -0.11 49
IV.FEMA.HNN. 2019-10-17T20:57:16.18 0.1 undecidable manual P 33 0.2293 110 0.23 96
IV.CESI.HHZ. 2019-10-17T20:57:16.21 0.1 undecidable manual P 5 0.2347 110 0.14 98
IV.MOMA.HHZ. 2019-10-17T20:57:16.55 0.6 positive manual P 279 0.2284 110 0.62 43
IV.CESX.HHN. 2019-10-17T20:57:16.42 0.1 undecidable manual P 233 0.268 50 -0.32 94
IV.MC2.EHZ. 2019-10-17T20:57:16.84 1.0 positive manual P 58 0.268 50 0.1 25
IV.LNSS.HHZ. 2019-10-17T20:57:15.53 0.1 undecidable manual P 144 0.2059 112 0.07 100
IT.GNU.HGZ. 2019-10-17T20:57:15.36 0.1 undecidable manual P 279 0.2275 110 -0.56 89
IV.ARRO.EHN. 2019-10-17T20:57:15.24 0.1 undecidable manual P 203 0.2077 112 -0.27 96
IV.NRCA.HHZ. 2019-10-17T20:57:15.16 0.1 negative manual P 70 0.1844 115 0.13 99
IT.MTCL.HGN. 2019-10-17T20:57:15.95 0.1 undecidable manual P 22 0.2401 109 -0.23 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.000277 0.52 AML other m 2019-10-17T20:57:18.60
IV.NRCA.HHN. ML:1.3 0.000148 0.6 AML other m 2019-10-17T20:57:18.60
IV.LNSS.HHE. ML:1.2 0.000116 0.08 AML other m 2019-10-17T20:57:20.14
IV.CESI.HHN. ML:1.5 0.0001795 0.62 AML other m 2019-10-17T20:57:20.66
IV.LNSS.HHN. ML:1.3 0.000139 0.64 AML other m 2019-10-17T20:57:20.99
IV.CESI.HHE. ML:1 6.035E-5 0.92 AML other m 2019-10-17T20:57:20.22
IV.MOMA.HHE. ML:1.2 9.145E-5 0.18 AML other m 2019-10-17T20:57:20.80
IV.MOMA.HHN. ML:1 6.12E-5 0.5 AML other m 2019-10-17T20:57:21.02
IV.FDMO.HHE. ML:1.3 7.845E-5 0.36 AML other m 2019-10-17T20:57:22.37
IV.FDMO.HHN. ML:1.2 6.885E-5 0.12 AML other m 2019-10-17T20:57:22.76
IV.RM33.EHN. ML:0.9 2.87E-5 0.64 AML other m 2019-10-17T20:57:25.37
IV.RM33.EHE. ML:0.9 2.94E-5 0.32 AML other m 2019-10-17T20:57:25.74
IV.SMA1.EHE. ML:0.9 2.71E-5 0.74 AML other m 2019-10-17T20:57:26.40
IV.SMA1.EHN. ML:0.9 2.635E-5 0.98 AML other m 2019-10-17T20:57:27.70
IV.ATCC.EHE. ML:1 2.44E-5 1.42 AML other m 2019-10-17T20:57:27.84
IV.ATCC.EHN. ML:1 2.51E-5 0.72 AML other m 2019-10-17T20:57:28.07
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