Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 29-12-2023 and time 21:27:23 (Italy) in region 3 km SW Visso (MC)

A magnitude ML 1.8 earthquake occured in region: 3 km SW Visso (MC), on

  • 29-12-2023 20:27:23 (UTC)
  • 29-12-2023 21:27:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9120, 13.0650 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 3 1107 1107
Preci PG 4 724 1831
Ussita MC 7 444 2275
Castelsantangelo sul Nera MC 8 281 2556
Monte Cavallo MC 11 145 2701
Sellano PG 12 1079 3780
Norcia PG 13 4957 8737
Fiordimonte MC 14 202 8939
Pieve Torina MC 15 1458 10397
Fiastra MC 16 559 10956
Cerreto di Spoleto PG 16 1075 12031
Acquacanina MC 16 121 12152
Bolognola MC 16 142 12294
Pievebovigliana MC 17 866 13160
Muccia MC 19 915 14075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
59 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
99 Km W of Montesilvano (53738 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 1.8 2023-12-29
20:27:23		 42.9122 13.0653 9 2023-12-29
20:36:08		 Sala Sismica INGV-Roma 124344991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-29 20:27:23 ± 0.05
Latitude 42.9122 ± 0.0027
Longitude 13.0653 ± 0.0037
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 124344991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 304
Semi-minor axis of confidence ellipse (meter) 278
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39930
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 57
Type of magnitude ML
Reference to an origin 124344991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-29 20:36:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2023-12-29T20:27:50.87 3.0 undecidable manual S 0.47 0
IV.PIEI.HHZ. 2023-12-29T20:27:49.65 3.0 undecidable manual S -0.14 0
IV.ATPI.EHZ. 2023-12-29T20:27:48.87 3.0 undecidable manual S -0.59 0
IV.FIAM.HHZ. 2023-12-29T20:27:47.05 3.0 undecidable manual S -0.04 0
IV.SSFR.HHZ. 2023-12-29T20:27:44.26 3.0 undecidable manual S 0.07 0
IV.ARVD.HHZ. 2023-12-29T20:27:44.97 3.0 undecidable manual S -0.23 0
IV.CESX.HHZ. 2023-12-29T20:27:40.88 3.0 undecidable manual S -0.05 0
IV.ARRO.EHZ. 2023-12-29T20:27:38.43 0.6 undecidable manual S 214 44.3223 50 -0.04 47
IT.GNU.HGE. 2023-12-29T20:27:38.53 0.6 undecidable manual S 254 42.0246 50 0.67 40
IV.SNTG.HHZ. 2023-12-29T20:27:37.23 0.6 undecidable manual S 345 39.3273 50 0.07 47
IV.MF5.EHZ. 2023-12-29T20:27:36.25 0.3 undecidable manual S 75 33.1446 50 0.77 58
IV.SMA1.EHZ. 2023-12-29T20:27:36.76 0.6 undecidable manual S 145 38.2284 50 -0.09 47
IV.SAP2.EHZ. 2023-12-29T20:27:36.27 0.3 undecidable manual S 53 33.9438 50 0.56 63
IV.FIAM.HHZ. 2023-12-29T20:27:36.39 3.0 negative manual P -0.48 0
IV.LNSS.HHZ. 2023-12-29T20:27:35.79 0.3 undecidable manual S 183 34.3434 50 -0.03 71
IV.ARVD.HHZ. 2023-12-29T20:27:35.67 3.0 positive manual P -0.14 0
IV.SSFR.HHZ. 2023-12-29T20:27:35.00 3.0 undecidable manual P -0.24 0
IV.GIGS.HHZ. 2023-12-29T20:27:35.54 3.0 undecidable manual P -0.42 0
IV.MTRA.EHZ. 2023-12-29T20:27:35.01 0.3 undecidable manual S 123 31.9458 50 -0.18 70
IV.GUMA.HHZ. 2023-12-29T20:27:34.04 0.3 undecidable manual S 53 27.5502 109 0.16 71
IV.MURB.HHZ. 2023-12-29T20:27:34.53 3.0 undecidable manual P -0.03 0
IV.OFFI.HHZ. 2023-12-29T20:27:33.97 3.0 negative manual P 0.49 0
IV.GAVE.EHZ. 2023-12-29T20:27:33.79 0.3 undecidable manual S 210 28.0497 108 -0.28 69
IV.MNTT.EHZ. 2023-12-29T20:27:33.23 3.0 undecidable manual P 0.49 0
IV.TERO.HHZ. 2023-12-29T20:27:33.47 3.0 positive manual P -0.64 0
IV.CING.HHZ. 2023-12-29T20:27:33.37 3.0 undecidable manual P -0.28 0
IV.ARRO.EHZ. 2023-12-29T20:27:32.23 0.1 undecidable manual P 214 44.3223 50 -0.04 93
IV.CSP1.EHZ. 2023-12-29T20:27:32.20 0.3 undecidable manual S 30 22.9548 112 -0.18 71
IV.RM33.EHZ. 2023-12-29T20:27:32.43 3.0 undecidable manual P -0.26 0
IV.MML1.EHZ. 2023-12-29T20:27:32.35 0.3 undecidable manual S 341 23.5542 112 -0.25 70
IV.SNTG.HHZ. 2023-12-29T20:27:31.19 0.1 undecidable manual P 345 39.3273 50 -0.32 89
IV.MMO1.EHZ. 2023-12-29T20:27:31.71 0.3 undecidable manual S 94 21.2676 114 -0.15 71
IV.ATCC.EHZ. 2023-12-29T20:27:31.03 3.0 undecidable manual P -1.4 0
IT.GNU.HGE. 2023-12-29T20:27:31.75 0.6 undecidable manual P 254 42.0246 50 -0.17 46
IV.SMA1.EHZ. 2023-12-29T20:27:31.18 0.3 undecidable manual P 145 38.2284 50 -0.15 69
IV.CESI.HHZ. 2023-12-29T20:27:30.70 0.3 undecidable manual S 308 16.6722 119 0.3 70
IV.MTRA.EHZ. 2023-12-29T20:27:30.13 0.1 undecidable manual P 123 31.9458 50 -0.24 92
IV.LNSS.HHZ. 2023-12-29T20:27:30.65 0.1 positive manual P 183 34.3434 50 -0.09 94
IV.MF5.EHZ. 2023-12-29T20:27:30.70 0.1 positive manual P 75 33.1446 50 0.16 93
IV.SAP2.EHZ. 2023-12-29T20:27:30.08 0.1 undecidable manual P 53 33.9438 50 -0.6 83
IV.ASSB.HHZ. 2023-12-29T20:27:30.74 3.0 positive manual P -0.04 0
IV.GUMA.HHZ. 2023-12-29T20:27:29.68 0.1 positive manual P 53 27.5502 109 0.06 96
IV.GAVE.EHZ. 2023-12-29T20:27:29.77 0.1 positive manual P 210 28.0497 108 0.05 96
IV.FDMO.HHZ. 2023-12-29T20:27:29.25 0.3 undecidable manual S 7 13.875 124 -0.35 69
IV.NRCA.HNZ. 2023-12-29T20:27:28.62 0.3 undecidable manual S 155 9.5793 134 0.19 72
IV.MML1.EHZ. 2023-12-29T20:27:28.72 0.3 undecidable manual P 341 23.5542 112 -0.16 71
IT.MTCL.HGZ. 2023-12-29T20:27:28.51 0.3 undecidable manual S 329 10.5783 131 -0.17 72
IV.MMO1.EHZ. 2023-12-29T20:27:28.40 0.1 positive manual P 94 21.2676 114 -0.05 97
IV.CSP1.EHZ. 2023-12-29T20:27:28.64 0.1 positive manual P 30 22.9548 112 -0.11 96
IV.FDMO.HHZ. 2023-12-29T20:27:27.22 0.1 negative manual P 7 13.875 124 0.07 98
IV.FEMA.HNZ. 2023-12-29T20:27:27.62 0.1 undecidable manual S 347 5.6943 149 0.04 100
IV.CESI.HHZ. 2023-12-29T20:27:27.82 0.1 positive manual P 308 16.6722 119 0.21 95
IV.NRCA.HNZ. 2023-12-29T20:27:26.72 0.1 undecidable manual P 155 9.5793 134 0.25 95
IV.FEMA.HNZ. 2023-12-29T20:27:26.26 0.1 negative manual P 347 5.6943 149 0.28 95
IT.MTCL.HGZ. 2023-12-29T20:27:26.74 0.1 negative manual P 329 10.5783 131 0.13 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.3 0.0034500000000000004 0.18 AML other m 2023-12-29T20:27:27.86
IV.FEMA.HNN. ML:2.1 0.00213 0.46 AML other m 2023-12-29T20:27:28.79
IT.MTCL.HGE. ML:4.2 0.23 0.26 AML other m 2023-12-29T20:27:28.96
IT.MTCL.HGN. ML:4.3 0.236 0.42 AML other m 2023-12-29T20:27:28.84
IV.FDMO.HHE. ML:1.8 0.0006505 0.96 AML other m 2023-12-29T20:27:30.61
IV.FDMO.HHN. ML:2.0 0.0009635000000000001 0.16 AML other m 2023-12-29T20:27:30.15
IV.CESI.HHN. ML:2.4 0.00214 0.12 AML other m 2023-12-29T20:27:30.83
IV.CESI.HHE. ML:2.1 0.001105 0.22 AML other m 2023-12-29T20:27:30.94
IV.CESI.HNN. ML:2.4 0.002015 0.12 AML other m 2023-12-29T20:27:30.83
IV.CESI.HNE. ML:2.0 0.0008945 0.22 AML other m 2023-12-29T20:27:30.94
IV.MMO1.EHE. ML:2.2 0.0012389999999999999 0.16 AML other m 2023-12-29T20:27:31.87
IV.MMO1.EHN. ML:2.1 0.0009195 0.26 AML other m 2023-12-29T20:27:32.38
IV.MML1.EHN. ML:1.5 0.000184 0.26 AML other m 2023-12-29T20:27:32.59
IV.CSP1.EHE. ML:2.2 0.0011465000000000002 0.14 AML other m 2023-12-29T20:27:32.62
IV.CSP1.EHN. ML:2.3 0.001385 0.36 AML other m 2023-12-29T20:27:32.85
IV.MML1.EHE. ML:1.6 0.000255 1.82 AML other m 2023-12-29T20:27:33.01
IV.GAVE.EHN. ML:2.2 0.000898 0.92 AML other m 2023-12-29T20:27:34.27
IV.GAVE.HNN. ML:1.8 0.0003175 0.6 AML other m 2023-12-29T20:27:34.27
IV.GAVE.EHE. ML:2.3 0.0009855 0.12 AML other m 2023-12-29T20:27:34.32
IV.GAVE.HNE. ML:2.3 0.001031 0.12 AML other m 2023-12-29T20:27:34.32
IV.GUMA.HHN. ML:2.0 0.0005985000000000001 0.32 AML other m 2023-12-29T20:27:34.23
IV.MTRA.EHN. ML:1.9 0.0003545 0.38 AML other m 2023-12-29T20:27:35.72
IV.GUMA.HNE. ML:1.9 0.0004196497 0.2304 AML other m 2023-12-29T20:27:34.85
IV.LNSS.HHN. ML:1.9 0.00036449999999999997 1.86 AML other m 2023-12-29T20:27:35.03
IV.LNSS.HHE. ML:2.1 0.00047999999999999996 0.14 AML other m 2023-12-29T20:27:36.15
IV.ASSB.HHN. ML:2.1 0.000508 0.2 AML other m 2023-12-29T20:27:36.34
IV.MTRA.EHE. ML:1.8 0.0002685964 0.1664 AML other m 2023-12-29T20:27:36.52
IV.SAP2.EHN. ML:2.4 0.00121 0.18 AML other m 2023-12-29T20:27:36.55
IV.ASSB.HHE. ML:1.9 0.00028849999999999997 0.8 AML other m 2023-12-29T20:27:36.50
IV.GUMA.HNN. ML:2.0 0.0005675 1.68 AML other m 2023-12-29T20:27:36.92
IV.GUMA.HHE. ML:2.0 0.0005895000000000001 1.64 AML other m 2023-12-29T20:27:37.95
IV.SNTG.HHE. ML:1.3 0.0000717 1.88 AML other m 2023-12-29T20:27:37.01
IV.SNTG.HHN. ML:1.3 0.00006705 1.74 AML other m 2023-12-29T20:27:38.06
IV.SMA1.EHN. ML:1.5 0.00011320000000000001 0.16 AML other m 2023-12-29T20:27:38.26
IV.SAP2.EHE. ML:1.7 0.00022290564999999997 0.1408 AML other m 2023-12-29T20:27:36.67
IV.SMA1.EHE. ML:1.4 0.00010075000000000001 0.24 AML other m 2023-12-29T20:27:39.39
IV.ARRO.EHN. ML:1.4 0.00006850000000000001 0.98 AML other m 2023-12-29T20:27:39.06
IV.ARRO.EHE. ML:1.4 0.00008245 0.22 AML other m 2023-12-29T20:27:39.95
IV.CING.HHE. ML:1.6 0.0001076 0.56 AML other m 2023-12-29T20:27:41.12
IV.CING.HHN. ML:1.5 0.0000756 0.1 AML other m 2023-12-29T20:27:41.52
IV.RM33.EHN. ML:1.2 0.00004725 0.98 AML other m 2023-12-29T20:27:41.31
IV.TERO.HHN. ML:1.7 0.0001115 0.12 AML other m 2023-12-29T20:27:41.90
IV.RM33.EHE. ML:1.3 0.00005640000000000001 1.16 AML other m 2023-12-29T20:27:42.64
IV.TERO.HHE. ML:1.6 0.00008415 0.4 AML other m 2023-12-29T20:27:42.72
IV.OFFI.HHN. ML:1.6 0.0000965 0.32 AML other m 2023-12-29T20:27:42.93
IV.CESX.HHE. ML:1.5 0.00008199999999999999 0.24 AML other m 2023-12-29T20:27:43.31
IV.MURB.HHE. ML:2.1 0.0002535 0.2 AML other m 2023-12-29T20:27:44.15
IV.MURB.HHN. ML:1.9 0.00016 1.58 AML other m 2023-12-29T20:27:45.04
IV.ARVD.HHN. ML:1.1 0.00002719767 0.1408 AML other m 2023-12-29T20:27:46.01
IV.ARVD.HHE. ML:1.3 0.000033600000000000004 0.84 AML other m 2023-12-29T20:27:46.46
IV.MPAG.EHN. ML:1.2 0.000020799999999999997 1.24 AML other m 2023-12-29T20:27:51.26
IV.PIEI.HHN. ML:1.0 0.000015155 0.42 AML other m 2023-12-29T20:27:51.09
IV.PIEI.HHE. ML:1.2 0.000020900000000000003 0.14 AML other m 2023-12-29T20:27:53.07
IV.MML1.HNE. ML:1.6 0.0002532387 0.1792 AML other m 2023-12-29T20:27:32.92
IV.MML1.HNN. ML:1.4 0.00018113065 0.1664 AML other m 2023-12-29T20:27:32.58
IV.LNSS.HNE. ML:2.0 0.00044240029999999996 0.128 AML other m 2023-12-29T20:27:36.14
IV.LNSS.HNN. ML:2.0 0.00037212385000000005 0.128 AML other m 2023-12-29T20:27:36.03
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