Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 04-09-2022 and time 08:35:03 (UTC) in region 3 km SE Visso (MC)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Visso (MC), on

  • 04-09-2022 08:35:03 (UTC)
  • 04-09-2022 10:35:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9120, 13.1080 at 10 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 3 1107 1107
Castelsantangelo sul Nera MC 4 281 1388
Ussita MC 4 444 1832
Preci PG 7 724 2556
Monte Cavallo MC 13 145 2701
Norcia PG 13 4957 7658
Bolognola MC 13 142 7800
Fiordimonte MC 14 202 8002
Acquacanina MC 14 121 8123
Fiastra MC 14 559 8682
Sellano PG 15 1079 9761
Pieve Torina MC 16 1458 11219
Pievebovigliana MC 17 866 12085
Montemonaco AP 18 604 12689
Cerreto di Spoleto PG 19 1075 13764
Montefortino FM 19 1178 14942
Muccia MC 20 915 15857
Montegallo AP 20 523 16380

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
96 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 0.9 2022-09-04
08:35:03		 42.9122 13.1082 10 2022-09-04
08:42:31		 Sala Sismica INGV-Roma 109317271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-04 08:35:03 ± 0.07
Latitude 42.9122 ± 0.0036
Longitude 13.1082 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109317271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 401
Semi-minor axis of confidence ellipse (meter) 341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41729
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 109317271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-04 08:42:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2022-09-04T08:35:19.05 0.6 undecidable manual S 359 46.3203 50 0.18 46
IV.ASSB.HHZ. 2022-09-04T08:35:16.80 0.6 undecidable manual S 292 39.2274 50 -0.19 47
IV.TERO.HHZ. 2022-09-04T08:35:15.36 3.0 undecidable manual P 0.52 0
IV.EL6.EHZ. 2022-09-04T08:35:12.45 0.6 negative manual P 359 46.3203 50 -0.06 47
IV.CESI.HHZ. 2022-09-04T08:35:11.46 0.6 undecidable manual S 302 19.4694 117 0.06 50
IV.CSP1.EHZ. 2022-09-04T08:35:11.84 0.6 undecidable manual S 21 21.4674 115 -0.17 48
IV.ASSB.HHZ. 2022-09-04T08:35:11.30 0.3 positive manual P 292 39.2274 50 -0.12 71
IV.MMO1.EHZ. 2022-09-04T08:35:10.80 0.6 undecidable manual S 95 17.871 119 -0.1 49
IV.FDMO.HHZ. 2022-09-04T08:35:09.60 0.6 undecidable manual S 353 13.875 126 -0.15 49
IV.NRCA.HHZ. 2022-09-04T08:35:08.03 0.6 undecidable manual S 177 8.7801 139 -0.38 47
IV.CESI.HHZ. 2022-09-04T08:35:08.43 1.0 undecidable manual P 302 19.4694 117 0.23 24
IV.CSP1.EHZ. 2022-09-04T08:35:08.53 0.1 positive manual P 21 21.4674 115 -0.02 100
IV.MMO1.EHZ. 2022-09-04T08:35:07.97 0.3 negative manual P 95 17.871 119 0.06 75
IV.FDMO.HHZ. 2022-09-04T08:35:07.39 0.1 positive manual P 353 13.875 126 0.15 99
IV.NRCA.HHZ. 2022-09-04T08:35:06.72 0.1 undecidable manual P 177 8.7801 139 0.25 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.0003685 0.14 AML other m 2022-09-04T08:35:08.49
IV.NRCA.HHE. ML:1.3 0.00029 0.08 AML other m 2022-09-04T08:35:09.17
IV.FDMO.HHN. ML:0.5 0.000034250000000000006 0.54 AML other m 2022-09-04T08:35:10.01
IV.FDMO.HHE. ML:0.5 0.0000311 0.8 AML other m 2022-09-04T08:35:10.86
IV.MMO1.EHE. ML:0.7 0.000046649999999999996 0.5 AML other m 2022-09-04T08:35:11.30
IV.MMO1.EHN. ML:0.9 0.0000597 0.84 AML other m 2022-09-04T08:35:11.19
IV.CESI.HHE. ML:0.9 0.000056349999999999994 0.22 AML other m 2022-09-04T08:35:11.80
IV.CESI.HHN. ML:1.0 0.00007485 0.26 AML other m 2022-09-04T08:35:11.79
IV.ASSB.HHN. ML:0.8 0.00001775 0.62 AML other m 2022-09-04T08:35:16.67
IV.ASSB.HHE. ML:0.8 0.00002265 0.42 AML other m 2022-09-04T08:35:17.21
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