Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 17-09-2019 and time 04:41:00 (Italy) in region 2 km SE Visso (MC)

A magnitude ML 0.8 earthquake occured in region: 2 km SE Visso (MC), on

  • 17-09-2019 02:41:00 (UTC)
  • 17-09-2019 04:41:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9190, 13.1010 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.

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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
Visso MC 2 1107 1107
Ussita MC 4 444 1551
Castelsantangelo sul Nera MC 5 281 1832
Preci PG 7 724 2556
Monte Cavallo MC 12 145 2701
Fiordimonte MC 13 202 2903
Bolognola MC 13 142 3045
Acquacanina MC 14 121 3166
Fiastra MC 14 559 3725
Norcia PG 14 4957 8682
Sellano PG 15 1079 9761
Pieve Torina MC 15 1458 11219
Pievebovigliana MC 16 866 12085
Cerreto di Spoleto PG 19 1075 13160
Montemonaco AP 19 604 13764
Muccia MC 19 915 14679
Montefortino FM 20 1178 15857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
99 Km NE of Viterbo (67173 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 0.8 2019-09-17
02:41:00		 42.9192 13.1012 9 2019-09-17
02:45:57		 Sala Sismica INGV-Roma 72478111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-17 02:41:00 ± 0.09
Latitude 42.9192 ± 0.0045
Longitude 13.1012 ± 0.0049
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72478111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 534
Semi-minor axis of confidence ellipse (meter) 267
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 199
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 72478111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-17 02:45:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2019-09-17T02:41:13.11 0.1 undecidable manual S 291 38.4282 50 -0.29 91
IV.MF5.EHZ. 2019-09-17T02:41:11.67 0.3 undecidable manual S 75 30.0477 50 0.5 66
IV.MNTT.EHZ. 2019-09-17T02:41:08.96 0.6 negative manual P 68 43.1235 50 0.38 44
IV.CESI.HHZ. 2019-09-17T02:41:07.89 0.3 undecidable manual S 301 18.5703 117 0.4 69
IV.ASSB.HHZ. 2019-09-17T02:41:07.48 0.6 positive manual P 291 38.4282 50 -0.37 45
IV.CSP1.EHZ. 2019-09-17T02:41:07.97 0.3 undecidable manual S 24 20.868 114 -0.25 71
IV.MMO1.EHZ. 2019-09-17T02:41:07.06 0.3 undecidable manual S 97 18.4704 117 -0.39 69
IV.MF5.EHZ. 2019-09-17T02:41:06.41 1.0 undecidable manual P 75 30.0477 50 -0.16 24
IV.FDMO.HHZ. 2019-09-17T02:41:05.80 0.3 undecidable manual S 355 13.0758 125 -0.04 75
IV.MC2.EHZ. 2019-09-17T02:41:04.49 0.1 undecidable manual S 97 7.1928 142 0.14 99
IV.MMO1.EHZ. 2019-09-17T02:41:04.20 0.3 positive manual P 97 18.4704 117 -0.22 72
IV.NRCA.HHZ. 2019-09-17T02:41:04.84 0.3 undecidable manual S 174 9.5793 134 -0.06 75
IV.CESI.HHZ. 2019-09-17T02:41:04.55 0.1 positive manual P 301 18.5703 117 0.11 98
IV.CSP1.EHZ. 2019-09-17T02:41:04.77 1.0 positive manual P 24 20.868 114 -0.1 24
IV.NRCA.HHZ. 2019-09-17T02:41:03.04 0.1 negative manual P 174 9.5793 134 0.09 100
IV.FDMO.HHZ. 2019-09-17T02:41:03.55 0.6 negative manual P 355 13.0758 125 0.06 50
IV.MC2.EHZ. 2019-09-17T02:41:02.79 1.0 undecidable manual P 97 7.1928 142 0.16 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.1 0.00017549999999999998 0.08 AML other m 2019-09-17T02:41:04.89
IV.NRCA.HHE. ML:1.1 0.000184 0.14 AML other m 2019-09-17T02:41:05.71
IV.FDMO.HHN. ML:0.5 0.000035000000000000004 1.36 AML other m 2019-09-17T02:41:05.91
IV.FDMO.HHE. ML:0.4 0.00003165 0.14 AML other m 2019-09-17T02:41:06.21
IV.CESI.HHN. ML:1.0 0.00007544999999999999 1.78 AML other m 2019-09-17T02:41:07.96
IV.CESI.HHE. ML:0.7 0.0000391 0.36 AML other m 2019-09-17T02:41:08.08
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