Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 29-05-2023 and time 16:24:21 (UTC) in region 4 km NW Visso (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Visso (MC), on

  • 29-05-2023 16:24:21 (UTC)
  • 29-05-2023 18:24:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9580, 13.0630 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 4 1107 1107
Ussita MC 6 444 1551
Monte Cavallo MC 6 145 1696
Preci PG 9 724 2420
Fiordimonte MC 9 202 2622
Pieve Torina MC 10 1458 4080
Castelsantangelo sul Nera MC 10 281 4361
Fiastra MC 12 559 4920
Pievebovigliana MC 12 866 5786
Acquacanina MC 12 121 5907
Sellano PG 13 1079 6986
Bolognola MC 14 142 7128
Muccia MC 14 915 8043
Serravalle di Chienti MC 16 1070 9113
Norcia PG 19 4957 14070
Cerreto di Spoleto PG 19 1075 15145
Camerino MC 20 6974 22119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
56 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
99 Km S of Fano (60888 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 1.1 2023-05-29
16:24:21		 42.9582 13.0627 10 2023-05-29
16:56:12		 Sala Sismica INGV-Roma 117856631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-29 16:24:21 ± 0.21
Latitude 42.9582 ± 0.0036
Longitude 13.0627 ± 0.0049
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117856631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
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) 129
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22483
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 117856631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-29 16:56:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2023-05-29T16:24:49.43 3.0 positive manual P 4.77 0
IV.CRTC.HHZ. 2023-05-29T16:24:38.24 3.0 undecidable manual P 0.61 0
IV.TERO.HHZ. 2023-05-29T16:24:37.51 3.0 undecidable manual S -2.09 0
IV.RM33.EHZ. 2023-05-29T16:24:35.42 3.0 undecidable manual S -1.55 0
IV.ARRO.EHZ. 2023-05-29T16:24:35.20 3.0 undecidable manual S -0.63 0
IV.LNSS.HHZ. 2023-05-29T16:24:33.19 3.0 undecidable manual S -0.13 0
IV.GAVE.EHZ. 2023-05-29T16:24:32.73 3.0 undecidable manual S 1.44 0
IV.GUMA.HHZ. 2023-05-29T16:24:30.80 0.3 undecidable manual S 62 24.9528 111 0.32 70
IV.MMO1.EHZ. 2023-05-29T16:24:29.47 0.3 undecidable manual S 107 22.4553 114 -0.2 72
IV.FOSV.EHZ. 2023-05-29T16:24:29.32 3.0 negative manual P -0.43 0
IV.MML1.EHZ. 2023-05-29T16:24:28.23 0.6 undecidable manual S 337 18.7701 118 -0.28 47
IV.CSP1.EHZ. 2023-05-29T16:24:28.48 0.6 undecidable manual S 38 18.7701 118 -0.05 50
IV.CESI.HHZ. 2023-05-29T16:24:27.12 0.6 undecidable manual S 292 13.875 125 0.06 50
IV.NRCA.HHZ. 2023-05-29T16:24:27.30 0.6 undecidable manual S 163 14.4744 124 0.06 50
IV.GUMA.HHZ. 2023-05-29T16:24:26.68 0.3 undecidable manual P 62 24.9528 111 0.13 73
IV.CSP1.EHZ. 2023-05-29T16:24:25.40 0.1 undecidable manual P 38 18.7701 118 -0.02 100
IV.MMO1.EHZ. 2023-05-29T16:24:25.90 0.1 undecidable manual P 107 22.4553 114 -0.18 96
IV.MML1.EHZ. 2023-05-29T16:24:25.30 1.0 undecidable manual P 337 18.7701 118 -0.11 25
IV.CESI.HHZ. 2023-05-29T16:24:24.66 0.1 undecidable manual P 292 13.875 125 0.09 100
IV.NRCA.HHZ. 2023-05-29T16:24:24.75 0.1 positive manual P 163 14.4744 124 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.000074 0.58 AML other m 2023-05-29T16:24:27.19
IV.CESI.HHN. ML:1.0 0.0000942 0.38 AML other m 2023-05-29T16:24:27.34
IV.MML1.EHN. ML:0.8 0.00004675 0.82 AML other m 2023-05-29T16:24:28.56
IV.MML1.EHE. ML:0.8 0.0000445 0.78 AML other m 2023-05-29T16:24:28.96
IV.NRCA.HHE. ML:1.8 0.0007325000000000001 0.18 AML other m 2023-05-29T16:24:32.42
IV.NRCA.HHN. ML:1.5 0.00034399999999999996 0.44 AML other m 2023-05-29T16:24:32.51
IV.GAVE.EHE. ML:1.4 0.00010470000000000001 0.1 AML other m 2023-05-29T16:24:35.73
IV.GAVE.EHN. ML:1.3 0.00008985000000000002 0.92 AML other m 2023-05-29T16:24:36.39
IV.LNSS.HHN. ML:1.5 0.0001172 1.54 AML other m 2023-05-29T16:24:36.89
IV.LNSS.HHE. ML:1.5 0.000112 0.44 AML other m 2023-05-29T16:24:37.21
IV.MMO1.EHE. ML:1.1 0.00008999999999999999 0.16 AML other m 2023-05-29T16:24:37.56
IV.MMO1.EHN. ML:1.1 0.00009115 0.44 AML other m 2023-05-29T16:24:38.27
IV.ARRO.EHE. ML:0.9 0.000021649999999999998 0.22 AML other m 2023-05-29T16:24:41.53
IV.RM33.EHN. ML:0.9 0.0000192 0.42 AML other m 2023-05-29T16:24:41.88
IV.RM33.EHE. ML:0.9 0.00001995 0.3 AML other m 2023-05-29T16:24:42.85
IV.ARRO.EHN. ML:1.0 0.000022800000000000002 0.42 AML other m 2023-05-29T16:24:43.74
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