Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 29-01-2023 and time 06:51:28 (Italy) in region 4 km NW Montefranco (TR)

A magnitude ML 2.0 earthquake occured in region: 4 km NW Montefranco (TR), on

  • 29-01-2023 05:51:28 (UTC)
  • 29-01-2023 06:51:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6170, 12.7320 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montefranco TR 4 1276 1276
Arrone TR 5 2763 4039
Ferentillo TR 5 1913 5952
Terni TR 9 111501 117453
Polino TR 10 233 117686
Labro RI 12 374 118060
Morro Reatino RI 13 373 118433
Spoleto PG 13 38218 156651
Scheggino PG 14 461 157112
Colli sul Velino RI 14 533 157645
Stroncone TR 14 4917 162562
San Gemini TR 15 5018 167580
Rivodutri RI 15 1253 168833
Sant'Anatolia di Narco PG 16 564 169397
Acquasparta TR 17 4778 174175
Poggio Bustone RI 18 2055 176230
Greccio RI 18 1558 177788
Monteleone di Spoleto PG 19 599 178387
Poggiodomo PG 20 117 178504

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NE of Terni (111501 inhabitants)
38 Km S of Foligno (57155 inhabitants)
56 Km E of Viterbo (67173 inhabitants)
61 Km SE of Perugia (166134 inhabitants)
62 Km W of L'Aquila (69753 inhabitants)
69 Km N of Guidonia Montecelio (88673 inhabitants)
73 Km N of Tivoli (56533 inhabitants)
80 Km W of Teramo (54892 inhabitants)
83 Km N of Roma (2864731 inhabitants)
97 Km NE of Civitavecchia (52991 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
Bulletin
Rev1000 		ML 2.0 2023-01-29
05:51:28		 42.6167 12.7317 9 2024-03-01
17:17:55		 Bollettino Sismico Italiano INGV 114456971
Reviewed
Rev100 		ML 2.0 2023-01-29
05:51:28		 42.6202 12.7275 9 2023-01-29
06:01:12		 Sala Sismica INGV-Roma 113877761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-29 05:51:28 ± 0.04
Latitude 42.6167 ± 0.0018
Longitude 12.7317 ± 0.0024
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 114456971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 228
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09268
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 114456971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-02-15 15:18:23

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 113877761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-29 06:01:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDRU.HHZ. 2023-01-29T05:52:59.87 3.0 undecidable manual Sg 11.78 0
IV.SGRT.HHZ. 2023-01-29T05:52:47.24 3.0 undecidable manual Sg 10.67 0
IX.COL3.HHZ.02 2023-01-29T05:52:15.85 3.0 undecidable manual Pg 4.72 0
IV.SGRT.HHZ. 2023-01-29T05:52:09.04 3.0 negative manual Pn 2.59 0
IV.PARC.HHZ. 2023-01-29T05:51:48.83 0.6 undecidable manual P 341 121.2897 50 0.31 39
IV.CSP1.EHZ. 2023-01-29T05:51:48.78 0.3 undecidable manual S 36 65.2902 50 0.3 65
IV.ARVD.HHZ. 2023-01-29T05:51:45.56 0.6 undecidable manual P 10 99.2229 50 0.43 39
IV.FRON.EHZ. 2023-01-29T05:51:45.33 0.6 undecidable manual P 360 99.9222 50 0.09 42
IV.FIAM.HHZ. 2023-01-29T05:51:44.29 0.6 undecidable manual S 141 49.9167 50 -0.09 46
IV.CING.HHZ. 2023-01-29T05:51:44.08 0.3 undecidable manual P 24 92.241 50 0.04 65
IV.SMA1.EHZ. 2023-01-29T05:51:44.52 0.6 undecidable manual S 88 49.3173 50 0.3 44
IV.ATMI.HHZ. 2023-01-29T05:51:43.71 0.3 undecidable manual P 335 88.0452 50 0.31 62
IV.EL6.EHZ. 2023-01-29T05:51:43.11 0.3 undecidable manual P 21 84.5487 50 0.24 63
IV.SRES.HHZ. 2023-01-29T05:51:43.68 0.3 undecidable manual S 203 45.8208 50 0.38 66
IV.CESI.HHZ. 2023-01-29T05:51:43.17 0.6 undecidable manual S 18 45.3213 50 0.01 48
IT.MTCL.HGZ. 2023-01-29T05:51:43.56 0.6 undecidable manual S 27 47.2194 50 -0.1 47
IV.ATVO.HHZ. 2023-01-29T05:51:43.31 1.0 undecidable manual P 343 88.9443 50 -0.22 21
IV.NRCA.HHZ. 2023-01-29T05:51:41.83 0.3 undecidable manual S 52 39.4272 50 0.25 69
IV.SACS.HHZ. 2023-01-29T05:51:41.22 1.0 positive manual P 291 71.7726 50 0.33 21
IT.FOPC.HGZ. 2023-01-29T05:51:41.76 0.6 undecidable manual S 357 39.2274 50 0.22 46
IV.FOSV.EHZ. 2023-01-29T05:51:41.44 0.1 undecidable manual P 2 75.2691 50 0.01 90
IV.MF5.EHZ. 2023-01-29T05:51:40.96 0.6 undecidable manual P 55 72.1722 50 0.01 45
IV.TERO.HHZ. 2023-01-29T05:51:40.50 1.0 undecidable manual P 89 71.1732 50 -0.3 21
IV.BARO.HNZ. 2023-01-29T05:51:40.68 0.1 undecidable manual P 234 69.0753 50 0.2 88
IV.ORTE.EHZ. 2023-01-29T05:51:40.03 0.3 undecidable manual S 239 33.2445 50 0.1 72
IV.SNTG.HHZ. 2023-01-29T05:51:40.71 0.1 undecidable manual P 13 72.8715 50 -0.34 84
IV.MTCE.HHZ. 2023-01-29T05:51:39.57 0.1 undecidable manual P 179 65.8896 50 -0.41 84
IV.MGAB.HHZ. 2023-01-29T05:51:39.17 0.6 negative manual P 303 60.1953 50 0.06 46
IV.ATCC.EHE. 2023-01-29T05:51:39.47 0.1 undecidable manual P 353 63.492 50 -0.15 89
IV.CSP1.EHZ. 2023-01-29T05:51:39.96 1.0 positive manual P 36 65.2902 50 0.07 23
IV.FDMO.HHZ. 2023-01-29T05:51:38.15 1.0 negative manual P 32 54.8007 50 -0.13 23
IV.CAMP.HHZ. 2023-01-29T05:51:38.27 0.3 undecidable manual P 99 55.9995 50 -0.2 67
IV.MMO1.EHZ. 2023-01-29T05:51:38.53 0.6 negative manual P 57 57.6978 50 -0.2 45
IV.SMA1.EHZ. 2023-01-29T05:51:37.37 0.3 undecidable manual P 88 49.3173 50 -0.06 70
IV.FEMA.HNZ. 2023-01-29T05:51:37.16 0.1 undecidable manual P 34 46.2204 50 0.2 91
IV.FIAM.HHZ. 2023-01-29T05:51:37.32 0.3 undecidable manual P 141 49.9167 50 -0.2 68
IV.MOMA.HHZ. 2023-01-29T05:51:37.00 0.6 undecidable manual S 328 24.5532 110 -0.24 47
IV.SRES.HHZ. 2023-01-29T05:51:37.14 0.3 undecidable manual P 203 45.8208 50 0.24 68
IV.MC2.EHZ. 2023-01-29T05:51:37.50 0.6 positive manual P 49 49.617 50 0.03 47
IT.GNU.HGZ. 2023-01-29T05:51:37.33 0.6 undecidable manual S 328 24.5532 110 0.09 49
IV.LNSS.HHZ. 2023-01-29T05:51:37.75 0.3 undecidable manual S 93 25.2525 110 0.3 70
IV.CESI.HHZ. 2023-01-29T05:51:36.66 0.1 undecidable manual P 18 45.3213 50 -0.15 92
IT.MTCL.HGZ. 2023-01-29T05:51:36.87 0.1 undecidable manual P 27 47.2194 50 -0.23 91
IT.MMP1.HGZ. 2023-01-29T05:51:35.83 0.1 undecidable manual P 178 40.7259 50 -0.28 91
IV.NRCA.HHZ. 2023-01-29T05:51:35.57 0.1 undecidable manual P 52 39.4272 50 -0.33 90
IT.FOPC.HGZ. 2023-01-29T05:51:35.83 0.1 undecidable manual P 357 39.2274 50 -0.05 95
IV.ORTE.EHZ. 2023-01-29T05:51:34.82 0.1 undecidable manual P 239 33.2445 50 -0.13 95
IV.MOMA.HHZ. 2023-01-29T05:51:33.20 0.3 undecidable manual P 328 24.5532 110 -0.2 71
IT.GNU.HGZ. 2023-01-29T05:51:33.32 0.1 undecidable manual P 328 24.5532 110 -0.08 97
IV.LNSS.HHZ. 2023-01-29T05:51:33.47 0.1 negative manual P 93 25.2525 110 -0.05 98
IV.CESX.HHZ. 2023-01-29T05:51:33.33 0.3 undecidable manual S 266 11.877 127 0.01 76
IV.ARRO.EHZ. 2023-01-29T05:51:31.82 0.3 undecidable manual S 146 4.995 151 0.09 75
IV.CESX.HHZ. 2023-01-29T05:51:31.19 0.1 negative manual P 266 11.877 127 0.05 100
IV.ARRO.EHZ. 2023-01-29T05:51:30.38 0.1 positive manual P 146 4.995 151 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:2.2 0.0028399999999999996 0.26 AML other m 2023-01-29T05:51:32.29
IV.ARRO.EHN. ML:2.1 0.00248 1.12 AML other m 2023-01-29T05:51:32.74
IV.CESX.HHE. ML:1.9 0.000999 1.68 AML other m 2023-01-29T05:51:33.03
IV.CESX.HHN. ML:2.0 0.0011400000000000002 0.68 AML other m 2023-01-29T05:51:34.80
IV.MOMA.HNN. ML:2.0 0.000605 0.44 AML other m 2023-01-29T05:51:38.33
IV.MOMA.HHN. ML:2.0 0.0006540000000000001 1.1 AML other m 2023-01-29T05:51:38.88
IV.MOMA.HHE. ML:2.0 0.0006680000000000001 0.96 AML other m 2023-01-29T05:51:38.00
IV.MOMA.HNE. ML:2.0 0.000665 1.7 AML other m 2023-01-29T05:51:38.86
IV.LNSS.HHE. ML:2.1 0.0008385 1.34 AML other m 2023-01-29T05:51:39.19
IV.LNSS.HNE. ML:2.1 0.0008295 1.34 AML other m 2023-01-29T05:51:39.20
IV.LNSS.HNN. ML:2.0 0.0006475 0.96 AML other m 2023-01-29T05:51:40.28
IV.LNSS.HHN. ML:2.0 0.0006545000000000001 0.96 AML other m 2023-01-29T05:51:40.28
IV.NRCA.HHE. ML:1.9 0.0002685 1.1 AML other m 2023-01-29T05:51:43.61
IV.CESI.HHN. ML:2.1 0.00034399999999999996 1.76 AML other m 2023-01-29T05:51:44.00
IV.CESI.HNN. ML:2.1 0.0003715 1.3 AML other m 2023-01-29T05:51:44.65
IV.NRCA.HHN. ML:1.9 0.00026749999999999994 0.76 AML other m 2023-01-29T05:51:44.11
IV.CESI.HHE. ML:2.0 0.0003025 1.1 AML other m 2023-01-29T05:51:44.12
IV.CESI.HNE. ML:2.0 0.0003075 1.1 AML other m 2023-01-29T05:51:44.12
IV.FOSV.EHN. ML:1.6 0.000063 1.58 AML other m 2023-01-29T05:51:46.82
IV.SRES.HHE. ML:1.5 0.00008979999999999999 0.72 AML other m 2023-01-29T05:51:46.74
IV.FDMO.HHN. ML:1.7 0.000124 0.16 AML other m 2023-01-29T05:51:46.39
IV.SRES.HHN. ML:1.4 0.0000711 0.74 AML other m 2023-01-29T05:51:47.15
IV.FDMO.HHE. ML:2.0 0.00023199999999999997 0.16 AML other m 2023-01-29T05:51:47.41
IV.SMA1.EHN. ML:2.0 0.000247 0.74 AML other m 2023-01-29T05:51:47.84
IV.SMA1.EHE. ML:2.0 0.000265 0.42 AML other m 2023-01-29T05:51:48.02
IV.MMO1.EHE. ML:1.7 0.00011199999999999998 1.18 AML other m 2023-01-29T05:51:48.86
IV.FIAM.HHN. ML:1.6 0.0001032 1.58 AML other m 2023-01-29T05:51:49.92
IV.CSP1.EHE. ML:2.2 0.000306 0.86 AML other m 2023-01-29T05:51:49.40
IV.MGAB.HHN. ML:2.1 0.00025 0.22 AML other m 2023-01-29T05:51:49.94
IV.MMO1.EHN. ML:1.8 0.0001305 1.48 AML other m 2023-01-29T05:51:49.20
IV.MGAB.HHE. ML:2.0 0.000223 0.48 AML other m 2023-01-29T05:51:50.70
IV.CSP1.EHN. ML:2.3 0.0003495 1.38 AML other m 2023-01-29T05:51:51.72
IV.FIAM.HHE. ML:1.6 0.00009484999999999999 1.1 AML other m 2023-01-29T05:51:56.11
IV.FOSV.EHE. ML:1.6 0.00006035 1.58 AML other m 2023-01-29T05:51:56.03
IV.ATMI.HHE. ML:2.3 0.0002515 0.78 AML other m 2023-01-29T05:52:02.47
IV.ATMI.HHN. ML:2.1 0.0001485 1.58 AML other m 2023-01-29T05:52:02.91
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
Waveforms Seismic signals in miniseed + resp format Download