Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 0.9 on date 04-09-2022 and time 20:22:52 (UTC) in region 3 km SE Visso (MC)

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

  • 04-09-2022 20:22:52 (UTC)
  • 04-09-2022 22:22:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9180, 13.1160 at 8 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
Ussita MC 4 444 1551
Castelsantangelo sul Nera MC 4 281 1832
Preci PG 8 724 2556
Bolognola MC 13 142 2698
Monte Cavallo MC 13 145 2843
Acquacanina MC 14 121 2964
Fiordimonte MC 14 202 3166
Fiastra MC 14 559 3725
Norcia PG 14 4957 8682
Pieve Torina MC 15 1458 10140
Sellano PG 16 1079 11219
Pievebovigliana MC 16 866 12085
Montemonaco AP 17 604 12689
Montefortino FM 19 1178 13867
Muccia MC 19 915 14782
Cerreto di Spoleto PG 20 1075 15857
Montegallo AP 20 523 16380

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
55 Km NE of Terni (111501 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
100 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 		Md 0.9 2022-09-04
20:22:52		 42.9177 13.1163 8 2022-09-04
20:33:18		 Sala Sismica INGV-Roma 109345321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-04 20:22:52 ± 0.23
Latitude 42.9177 ± 0.0045
Longitude 13.1163 ± 0.0049
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109345321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 550
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 41
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.22213
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 3
Type of magnitude Md
Reference to an origin 109345321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-04 20:33:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2022-09-04T20:23:01.70 0.6 undecidable manual S 332 24.6531 108 -0.25 47
IV.CSP1.EHZ. 2022-09-04T20:23:00.50 0.6 undecidable manual S 20 20.5683 111 -0.11 49
IV.CESI.HHZ. 2022-09-04T20:23:00.10 0.6 undecidable manual S 299 19.7691 112 -0.23 48
IV.MMO1.EHZ. 2022-09-04T20:22:59.50 0.3 undecidable manual S 97 17.2716 115 -0.03 75
IV.FDMO.HHZ. 2022-09-04T20:22:58.40 0.6 undecidable manual S 350 13.3755 121 0.05 50
7F.SIB1.EHE. 2022-09-04T20:22:58.50 0.3 undecidable manual S 102 12.7761 122 0.34 71
7F.SIB3.EHE. 2022-09-04T20:22:58.10 0.6 undecidable manual S 111 13.3755 121 -0.24 48
IV.CESI.HHZ. 2022-09-04T20:22:57.72 0.1 undecidable manual P 299 19.7691 112 0.51 90
IV.MML1.EHZ. 2022-09-04T20:22:57.87 1.0 undecidable manual P 332 24.6531 108 -0.28 23
IV.NRCA.HHZ. 2022-09-04T20:22:57.00 0.6 undecidable manual S 181 9.3795 130 -0.2 49
IV.CSP1.EHZ. 2022-09-04T20:22:57.19 0.6 positive manual P 20 20.5683 111 -0.19 48
IV.FDMO.HHZ. 2022-09-04T20:22:56.06 0.6 positive manual P 350 13.3755 121 -0.01 51
7F.SIB1.EHE. 2022-09-04T20:22:56.02 0.1 undecidable manual P 102 12.7761 122 0.06 100
IV.MMO1.EHZ. 2022-09-04T20:22:56.61 0.6 negative manual P 97 17.2716 115 -0.14 49
IV.NRCA.HHZ. 2022-09-04T20:22:55.30 0.1 undecidable manual P 181 9.3795 130 -0.11 100
7F.SIB3.EHE. 2022-09-04T20:22:55.91 0.1 undecidable manual P 111 13.3755 121 -0.16 98
IV.MC2.EHN. 2022-09-04T20:22:55.18 0.1 undecidable manual P 97 5.8941 143 0.24 97
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