Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 10-02-2023 and time 23:20:26 (UTC) in region 5 km NE Città di Castello (PG)

A magnitude ML 1.7 earthquake occured in region: 5 km NE Città di Castello (PG), on

  • 10-02-2023 23:20:26 (UTC)
  • 11-02-2023 00:20:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4990, 12.2720 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.

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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
Città di Castello PG 5 39913 39913
San Giustino PG 10 11297 51210
Monte Santa Maria Tiberina PG 11 1183 52393
Citerna PG 13 3531 55924
Monterchi AR 13 1757 57681
Sansepolcro AR 13 15884 73565
Apecchio PU 14 1882 75447
Pietralunga PG 15 2111 77558
Montone PG 16 1680 79238
Mercatello sul Metauro PU 18 1378 80616
Borgo Pace PU 18 606 81222
Anghiari AR 18 5638 86860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Arezzo (99543 inhabitants)
45 Km N of Perugia (166134 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
70 Km NW of Foligno (57155 inhabitants)
71 Km S of Cesena (96758 inhabitants)
71 Km SW of Fano (60888 inhabitants)
79 Km E of Siena (53903 inhabitants)
83 Km S of Forlì (117913 inhabitants)
87 Km E of Firenze (382808 inhabitants)
92 Km E of Scandicci (50609 inhabitants)
93 Km SE of Faenza (58541 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 1.7 2023-02-10
23:20:26		 43.4987 12.2723 9 2024-03-01
17:18:12		 Bollettino Sismico Italiano INGV 119085301
Reviewed
Rev100 		ML 1.8 2023-02-10
23:20:26		 43.4988 12.2722 9 2023-02-10
23:30:23		 Sala Sismica INGV-Roma 114330041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-10 23:20:26 ± 0.05
Latitude 43.4987 ± 0.0018
Longitude 12.2723 ± 0.0025
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 119085301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 197
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.79050
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 119085301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-07-14 10:44:04

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 114330041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-10 23:30:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SRES.HHZ. 2023-02-10T23:21:07.50 3.0 undecidable manual S -0.34 0
IV.EL6.EHZ. 2023-02-10T23:20:48.50 3.0 undecidable manual S 69.375 1.08 0
IV.CSP1.EHZ. 2023-02-10T23:20:41.88 3.0 negative manual P 87.7455 0.67 0
IV.SSFR.HHZ. 2023-02-10T23:20:40.00 0.6 undecidable manual S 99 41.625 50 -0.01 47
IV.FDMO.HHZ. 2023-02-10T23:20:40.67 3.0 positive manual P 83.4498 0.12 0
IV.EL6.EHZ. 2023-02-10T23:20:38.25 3.0 undecidable manual P 69.375 -0.14 0
IV.MGAB.HHZ. 2023-02-10T23:20:38.13 0.6 undecidable manual P 191 66.2781 50 0.23 43
IV.MURB.HHZ. 2023-02-10T23:20:37.80 0.6 undecidable manual S 142 33.1446 50 0.06 47
IV.NARO.HHZ. 2023-02-10T23:20:36.60 0.3 undecidable manual S 63 27.75 108 0.41 66
IV.ATLO.EHE. 2023-02-10T23:20:34.60 0.3 undecidable manual S 152 23.0547 112 -0.07 72
IV.ATBU.EHZ. 2023-02-10T23:20:34.30 0.3 undecidable manual S 96 22.3554 113 -0.14 71
IV.PIEI.HHZ. 2023-02-10T23:20:34.10 0.6 undecidable manual S 79 21.5673 113 -0.07 48
IV.TB01.DHZ.01 2023-02-10T23:20:33.20 0.1 undecidable manual S 135 18.4704 117 -0.01 98
IV.SSFR.HHZ. 2023-02-10T23:20:33.86 0.3 undecidable manual P 99 41.625 50 -0.25 67
IV.TB02.DHZ.01 2023-02-10T23:20:33.20 0.3 undecidable manual S 142 17.9709 117 0.14 72
IV.ATMI.HHZ. 2023-02-10T23:20:33.00 0.6 undecidable manual S 181 18.2706 117 -0.14 48
IV.CPGN.EHZ. 2023-02-10T23:20:33.33 0.3 undecidable manual P 7 33.744 50 0.43 65
IV.TSM2.DHN.01 2023-02-10T23:20:33.90 0.3 undecidable manual S 123 20.868 114 -0.07 72
IV.MPAG.EHZ. 2023-02-10T23:20:33.78 0.3 undecidable manual P 70 41.7249 50 -0.34 66
IV.CRE.HHZ. 2023-02-10T23:20:32.10 0.1 undecidable manual P 297 29.0487 108 -0.04 95
IV.ATVO.HHZ. 2023-02-10T23:20:32.70 0.1 undecidable manual S 140 16.872 119 -0.01 98
IV.ATPC.HHE. 2023-02-10T23:20:32.20 0.1 undecidable manual S 98 14.9739 122 0.05 98
IV.TSM3.DHE.01 2023-02-10T23:20:32.00 0.3 undecidable manual S 152 14.4744 123 -0.01 74
IV.TB03.DHZ.01 2023-02-10T23:20:32.40 0.1 undecidable manual S 134 15.4734 121 0.09 97
IV.FRON.EHZ. 2023-02-10T23:20:32.88 0.1 undecidable manual P 87 36.5412 50 -0.44 87
IV.CAFI.HHZ. 2023-02-10T23:20:32.50 0.6 undecidable manual P 233 31.0467 50 0.03 48
IV.PARC.HHZ. 2023-02-10T23:20:32.60 0.1 undecidable manual S 351 16.872 119 -0.12 96
IV.MURB.HHZ. 2023-02-10T23:20:32.71 0.1 undecidable manual P 142 33.1446 50 -0.08 94
IV.NARO.HHZ. 2023-02-10T23:20:32.40 0.3 undecidable manual P 63 27.75 108 0.5 65
IV.PE3.EHZ. 2023-02-10T23:20:31.88 0.3 undecidable manual P 39 28.3494 108 -0.13 70
IV.SSP9.EHZ. 2023-02-10T23:20:31.70 0.1 undecidable manual S 306 14.0748 123 -0.19 95
IV.ATFO.HHZ. 2023-02-10T23:20:31.83 0.6 undecidable manual P 121 28.1496 108 -0.16 47
IV.APEC.HHZ. 2023-02-10T23:20:31.80 0.1 undecidable manual S 61 13.5753 124 0.04 98
IV.ATLO.EHE. 2023-02-10T23:20:30.98 0.3 undecidable manual P 152 23.0547 112 -0.05 72
IV.PIEI.HHZ. 2023-02-10T23:20:30.61 0.1 undecidable manual P 79 21.5673 113 -0.13 95
IV.ATPI.EHZ. 2023-02-10T23:20:30.90 0.6 undecidable manual S 117 11.7771 128 -0.33 46
IV.TB02.DHZ.01 2023-02-10T23:20:30.22 0.1 undecidable manual P 142 17.9709 117 0.12 96
IV.ATVA.EHE. 2023-02-10T23:20:30.84 0.3 undecidable manual P 178 24.4533 111 -0.43 66
IV.TSM2.DHN.01 2023-02-10T23:20:30.55 0.1 undecidable manual P 123 20.868 114 -0.07 96
IV.ATMI.HHZ. 2023-02-10T23:20:30.27 0.1 undecidable manual P 181 18.2706 117 0.13 95
IV.ATMC.EHE. 2023-02-10T23:20:30.40 0.3 undecidable manual S 228 8.5803 137 -0.03 74
IV.TB01.DHZ.01 2023-02-10T23:20:30.25 0.1 undecidable manual P 135 18.4704 117 0.07 97
IV.PARC.HHZ. 2023-02-10T23:20:30.04 0.3 positive manual P 351 16.872 119 0.14 72
IV.ATBU.EHZ. 2023-02-10T23:20:30.68 0.3 undecidable manual P 96 22.3554 113 -0.21 70
IV.CDCA.HNZ. 2023-02-10T23:20:30.00 0.3 undecidable manual S 215 5.3946 150 0.23 72
IV.APEC.HHZ. 2023-02-10T23:20:29.47 0.1 undecidable manual P 61 13.5753 124 0.13 96
IV.TSM3.DHE.01 2023-02-10T23:20:29.61 0.1 undecidable manual P 152 14.4744 123 0.12 96
IV.TB03.DHZ.01 2023-02-10T23:20:29.77 0.1 undecidable manual P 134 15.4734 121 0.12 96
IV.ATVO.HHZ. 2023-02-10T23:20:29.98 0.1 undecidable manual P 140 16.872 119 0.08 97
IV.ATPI.EHZ. 2023-02-10T23:20:29.03 0.1 undecidable manual P 117 11.7771 128 0 99
IV.SSP9.EHZ. 2023-02-10T23:20:29.70 0.1 undecidable manual P 306 14.0748 123 0.29 93
IV.ATPC.HHE. 2023-02-10T23:20:29.68 0.1 undecidable manual P 98 14.9739 122 0.11 96
IV.BADI.EHZ. 2023-02-10T23:20:28.80 0.1 undecidable manual S 299 2.5974 165 -0.58 88
IV.CDCA.HNZ. 2023-02-10T23:20:28.37 0.3 undecidable manual P 215 5.3946 150 0.17 72
IV.ATMC.EHE. 2023-02-10T23:20:28.75 0.1 positive manual P 228 8.5803 137 0.18 96
IV.BADI.EHZ. 2023-02-10T23:20:27.94 0.1 undecidable manual P 299 2.5974 165 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.HNN. ML:0.0 0.00050671265 0.192 AML other m 2023-02-10T23:20:31.24
IV.ATPI.EHN. ML:0.0 0.00045763475 0.2048 AML other m 2023-02-10T23:20:31.14
IV.ATPI.HNE. ML:0.0 0.00041263315000000003 0.1152 AML other m 2023-02-10T23:20:31.23
IV.ATPI.EHE. ML:0.0 0.00042911964999999995 0.1152 AML other m 2023-02-10T23:20:31.23
IV.APEC.HHN. ML:0.0 0.00248 1.84 AML other m 2023-02-10T23:20:32.00
IV.APEC.HHE. ML:0.0 0.0013225645 0.1536 AML other m 2023-02-10T23:20:32.32
IV.SSP9.EHN. ML:0.0 0.00013744939 0.2176 AML other m 2023-02-10T23:20:32.94
IV.PARC.HHE. ML:0.0 0.0006522171999999999 0.1792 AML other m 2023-02-10T23:20:33.31
IV.PARC.HHN. ML:0.0 0.00070664745 0.2432 AML other m 2023-02-10T23:20:33.36
IV.ATVO.HHE. ML:0.0 0.0007049127500000001 0.3456 AML other m 2023-02-10T23:20:33.01
IV.ATVO.HNE. ML:0.0 0.00069189055 0.2816 AML other m 2023-02-10T23:20:33.96
IV.ATVO.HHN. ML:0.0 0.0009562872 0.2048 AML other m 2023-02-10T23:20:33.57
IV.ATVO.HNN. ML:0.0 0.0009144232 0.2176 AML other m 2023-02-10T23:20:33.58
IV.ATMI.HHE. ML:0.0 0.0005008431 0.1792 AML other m 2023-02-10T23:20:33.64
IV.PIEI.HHE. ML:0.0 0.00041234320000000003 0.192 AML other m 2023-02-10T23:20:35.40
IV.PIEI.HNE. ML:0.0 0.00038707165 0.192 AML other m 2023-02-10T23:20:35.40
IV.PIEI.HHN. ML:0.0 0.00024068275 0.1408 AML other m 2023-02-10T23:20:34.62
IV.ATMI.HHN. ML:0.0 0.00034199999999999996 0.44 AML other m 2023-02-10T23:20:35.31
IV.ATFO.HHE. ML:0.0 0.000202 0.56 AML other m 2023-02-10T23:20:36.89
IV.ATFO.HHN. ML:0.0 0.00023878769999999998 0.3072 AML other m 2023-02-10T23:20:36.87
IV.CRE.HHE. ML:0.0 0.000058234355 0.2432 AML other m 2023-02-10T23:20:37.54
IV.NARO.HHN. ML:0.0 0.0001885 1.12 AML other m 2023-02-10T23:20:37.10
IV.PIEI.HNN. ML:0.0 0.00019594865 0.1536 AML other m 2023-02-10T23:20:34.62
IV.PE3.EHN. ML:0.0 0.0003062349 0.32 AML other m 2023-02-10T23:20:37.59
IV.NARO.HHE. ML:0.0 0.0001135 0.9 AML other m 2023-02-10T23:20:37.98
IV.MURB.HHE. ML:0.0 0.00046689055 0.256 AML other m 2023-02-10T23:20:38.22
IV.MURB.HNE. ML:0.0 0.0005063573 0.2944 AML other m 2023-02-10T23:20:38.36
IV.PE3.EHE. ML:0.0 0.00034212905 0.512 AML other m 2023-02-10T23:20:37.61
IV.FRON.EHE. ML:0.0 0.00016730825 0.1152 AML other m 2023-02-10T23:20:38.62
IV.FRON.EHN. ML:0.0 0.00016026080000000002 0.1408 AML other m 2023-02-10T23:20:38.64
IV.MURB.HHN. ML:0.0 0.00039932605 0.2816 AML other m 2023-02-10T23:20:39.19
IV.CAFI.HHE. ML:0.0 0.000094459885 0.128 AML other m 2023-02-10T23:20:38.83
IV.CAFI.HHN. ML:1.2 0.0000688 0.86 AML other m 2023-02-10T23:20:38.49
IV.MURB.HNN. ML:0.0 0.0004469509 0.256 AML other m 2023-02-10T23:20:39.18
IV.CRE.HHN. ML:0.0 0.000078368295 0.256 AML other m 2023-02-10T23:20:39.28
IV.SSP9.EHE. ML:1.1 0.000124 0.48 AML other m 2023-02-10T23:20:39.58
IV.SSFR.HHN. ML:0.0 0.0002523316 0.2048 AML other m 2023-02-10T23:20:41.22
IV.SSFR.HHE. ML:0.0 0.00034156615 0.1408 AML other m 2023-02-10T23:20:41.40
IV.CSP1.EHE. ML:1.9 0.0000895 0.42 AML other m 2023-02-10T23:20:43.45
IV.MGAB.HHN. ML:0.0 0.00007125000000000001 0.22 AML other m 2023-02-10T23:20:49.12
IV.MGAB.HHE. ML:0.0 0.00006934999999999999 0.96 AML other m 2023-02-10T23:20:50.83
IV.CSP1.EHN. ML:2.0 0.00011845 0.72 AML other m 2023-02-10T23:20:54.95
IV.EL6.EHE. ML:1.8 0.00012075 0.42 AML other m 2023-02-10T23:20:59.72
IV.EL6.EHN. ML:1.9 0.0001465 0.42 AML other m 2023-02-10T23:21:00.12
IV.BADI.EHE. ML:0.0 0.004706368 0.0896 AML other m 2023-02-10T23:20:29.17
IV.BADI.EHN. ML:0.0 0.005062823500000001 0.128 AML other m 2023-02-10T23:20:29.19
IV.APEC.HNN. ML:0.0 0.00170049 0.1664 AML other m 2023-02-10T23:20:31.92
IV.APEC.HNE. ML:0.0 0.0021824925 0.2688 AML other m 2023-02-10T23:20:32.14
IV.ATFO.HNN. ML:0.0 0.0002597777 0.3584 AML other m 2023-02-10T23:20:36.88
IV.CAFI.HNE. ML:0.0 0.00008946925 0.1152 AML other m 2023-02-10T23:20:38.84
IV.MPAG.EHE. ML:0.0 0.00005183871 0.1152 AML other m 2023-02-10T23:20:40.84
IV.MPAG.EHN. ML:0.0 0.0000672414 0.192 AML other m 2023-02-10T23:20:40.26
IV.SSFR.HNE. ML:0.0 0.00033256835 0.1152 AML other m 2023-02-10T23:20:41.39
IV.SSFR.HNN. ML:0.0 0.00027303865 0.1408 AML other m 2023-02-10T23:20:40.19
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