Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 24-02-2023 and time 14:12:23 (UTC) in region 4 km N Anghiari (AR)

A magnitude ML 1.6 earthquake occured in region: 4 km N Anghiari (AR), on

  • 24-02-2023 14:12:23 (UTC)
  • 24-02-2023 15:12:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5780, 12.0610 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
Anghiari AR 4 5638 5638
Sansepolcro AR 7 15884 21522
Caprese Michelangelo AR 10 1426 22948
Citerna PG 10 3531 26479
San Giustino PG 10 11297 37776
Pieve Santo Stefano AR 10 3183 40959
Monterchi AR 11 1757 42716
Subbiano AR 15 6331 49047
Capolona AR 16 5438 54485
Chiusi della Verna AR 17 2023 56508
Chitignano AR 17 899 57407
Badia Tedalda AR 18 1087 58494
Monte Santa Maria Tiberina PG 18 1183 59677
Arezzo AR 19 99543 159220
Città di Castello PG 20 39913 199133
Castel Focognano AR 20 3149 202282

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Arezzo (99543 inhabitants)
59 Km NW of Perugia (166134 inhabitants)
64 Km S of Cesena (96758 inhabitants)
66 Km E of Siena (53903 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
68 Km E of Firenze (382808 inhabitants)
72 Km S of Forlì (117913 inhabitants)
74 Km E of Scandicci (50609 inhabitants)
78 Km W of Pesaro (94582 inhabitants)
80 Km S of Faenza (58541 inhabitants)
83 Km W of Fano (60888 inhabitants)
84 Km E of Prato (191150 inhabitants)
87 Km NW of Foligno (57155 inhabitants)
91 Km SE of Imola (69797 inhabitants)
94 Km S of Ravenna (159116 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 1.6 2023-02-24
14:12:23		 43.5785 12.0607 9 2024-03-01
17:18:01		 Bollettino Sismico Italiano INGV 116082261
Reviewed
Rev100 		ML 1.6 2023-02-24
14:12:23		 43.5832 12.0678 9 2023-02-24
14:22:52		 Sala Sismica INGV-Roma 114761141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-24 14:12:23 ± 0.05
Latitude 43.5785 ± 0.0027
Longitude 12.0607 ± 0.0037
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 116082261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 366
Semi-minor axis of confidence ellipse (meter) 243
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 221
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 52
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.66640
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 116082261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-10-30 09:48:13

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 114761141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-24 14:22:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LMD.HHZ. 2023-02-24T14:12:43.46 0.6 undecidable manual S 333 62.1933 50 0.25 43
IV.MPAG.EHZ. 2023-02-24T14:12:42.02 0.6 undecidable manual S 84 56.3991 50 0.34 43
IV.FRON.EHZ. 2023-02-24T14:12:41.35 0.6 undecidable manual S 97 53.9016 50 0.35 43
IV.ATFO.HHZ. 2023-02-24T14:12:39.76 0.6 undecidable manual S 120 47.4192 50 0.5 42
IV.SFI.EHZ. 2023-02-24T14:12:37.06 0.6 undecidable manual S 335 40.0266 50 -0.25 45
IV.MGAB.HHZ. 2023-02-24T14:12:37.25 0.6 undecidable manual P 177 73.9704 50 0.45 41
IV.ATLO.EHE. 2023-02-24T14:12:37.24 0.6 undecidable manual S 136 40.4262 50 -0.17 46
IV.NARO.HHZ. 2023-02-24T14:12:37.65 0.6 undecidable manual S 85 41.9247 50 -0.16 46
IV.TB03.DHZ.01 2023-02-24T14:12:36.11 0.6 undecidable manual S 125 34.3434 50 0.33 45
IV.TB02.DHZ.01 2023-02-24T14:12:36.43 0.6 undecidable manual S 129 36.3414 50 0.11 47
IV.TB01.DHZ.01 2023-02-24T14:12:36.45 0.6 undecidable manual S 126 37.2294 50 -0.12 47
IV.PIEI.HHZ. 2023-02-24T14:12:36.77 0.3 undecidable manual S 97 38.4282 50 -0.11 70
IV.ATVO.HHZ. 2023-02-24T14:12:35.98 0.6 undecidable manual S 128 35.3424 50 -0.08 47
IV.LMD.HHZ. 2023-02-24T14:12:35.10 0.3 undecidable manual P 333 62.1933 50 0.13 67
IV.ATPC.HHE. 2023-02-24T14:12:35.92 0.3 undecidable manual S 109 33.6441 50 0.31 68
IV.CSNT.HHZ. 2023-02-24T14:12:35.75 0.3 undecidable manual P 260 63.0924 50 0.64 58
IV.ATPI.EHZ. 2023-02-24T14:12:34.76 0.6 undecidable manual S 117 30.9468 50 -0.11 47
IV.CAFI.HHZ. 2023-02-24T14:12:34.08 0.3 undecidable manual S 195 28.6491 108 -0.08 72
Y1.T1756.HNZ. 2023-02-24T14:12:34.48 0.3 undecidable manual P 4 53.502 50 0.85 54
IV.APEC.HNZ. 2023-02-24T14:12:34.19 0.6 undecidable manual S 94 28.9488 107 -0.06 48
IV.ATMI.HHZ. 2023-02-24T14:12:34.52 0.6 undecidable manual S 148 31.8459 50 -0.6 42
IV.MPAG.EHZ. 2023-02-24T14:12:33.81 0.3 undecidable manual P 84 56.3991 50 -0.28 65
IV.FRON.EHZ. 2023-02-24T14:12:33.45 0.3 undecidable manual P 97 53.9016 50 -0.25 66
IV.MURB.HHZ. 2023-02-24T14:12:33.57 0.3 undecidable manual P 133 51.2154 50 0.28 66
IV.ATFO.HHZ. 2023-02-24T14:12:32.68 0.3 undecidable manual P 120 47.4192 50 -0.01 70
IV.PIEI.HHZ. 2023-02-24T14:12:31.04 0.1 undecidable manual P 97 38.4282 50 -0.28 90
IV.ATLO.EHE. 2023-02-24T14:12:31.59 0.1 undecidable manual P 136 40.4262 50 -0.03 94
IV.ATVA.EHE. 2023-02-24T14:12:31.02 0.3 undecidable manual P 151 37.8288 50 -0.21 69
IV.NARO.HHZ. 2023-02-24T14:12:31.47 0.1 undecidable manual P 85 41.9247 50 -0.39 87
IV.TB01.DHZ.01 2023-02-24T14:12:31.07 0.1 undecidable manual P 126 37.2294 50 -0.07 94
IV.SFI.EHZ. 2023-02-24T14:12:31.45 0.1 undecidable manual P 335 40.0266 50 -0.12 93
IV.CDCA.HNZ. 2023-02-24T14:12:31.33 0.3 undecidable manual S 134 19.2696 115 0.22 71
IV.BADI.EHZ. 2023-02-24T14:12:30.48 0.1 undecidable manual S 117 16.6722 119 0.19 95
IV.CPGN.EHZ. 2023-02-24T14:12:30.69 0.1 undecidable manual P 40 32.3454 50 0.32 90
IV.ATMC.EHZ. 2023-02-24T14:12:30.94 0.6 undecidable manual S 144 18.0708 117 0.21 47
IV.TB03.DHZ.01 2023-02-24T14:12:30.59 0.1 undecidable manual P 125 34.3434 50 -0.09 94
IV.TB02.DHZ.01 2023-02-24T14:12:30.98 0.3 undecidable manual P 129 36.3414 50 -0.01 72
IV.ATMI.HHZ. 2023-02-24T14:12:30.13 0.1 undecidable manual P 148 31.8459 50 -0.17 93
IV.ATVO.HHZ. 2023-02-24T14:12:30.72 0.3 undecidable manual P 128 35.3424 50 -0.12 70
IV.ATPC.HHE. 2023-02-24T14:12:30.43 0.1 undecidable manual P 109 33.6441 50 -0.15 93
IV.ATPI.EHZ. 2023-02-24T14:12:29.84 0.1 undecidable manual P 117 30.9468 50 -0.32 90
IV.APEC.HNZ. 2023-02-24T14:12:29.70 0.1 undecidable manual P 94 28.9488 107 -0.1 95
IV.PARC.HHZ. 2023-02-24T14:12:29.94 0.3 undecidable manual S 61 16.2726 119 -0.24 71
IV.CAFI.HHZ. 2023-02-24T14:12:29.73 0.1 positive manual P 195 28.6491 108 -0.02 97
IV.CDCA.HNZ. 2023-02-24T14:12:28.00 0.3 undecidable manual P 134 19.2696 115 0.01 74
IV.CRE.HHZ. 2023-02-24T14:12:28.06 0.1 undecidable manual S 297 9.879 133 -0.31 94
IV.PARC.HHZ. 2023-02-24T14:12:27.44 0.1 positive manual P 61 16.2726 119 -0.01 99
IV.ATMC.EHZ. 2023-02-24T14:12:27.87 0.1 undecidable manual P 144 18.0708 117 0.1 97
IV.SSP9.EHZ. 2023-02-24T14:12:27.52 0.3 undecidable manual S 95 5.6943 148 0.08 74
IV.BADI.EHZ. 2023-02-24T14:12:27.67 0.1 positive manual P 117 16.6722 119 0.16 96
IV.CRE.HHZ. 2023-02-24T14:12:26.39 0.1 positive manual P 297 9.879 133 -0.01 100
IV.SSP9.EHZ. 2023-02-24T14:12:25.92 0.1 positive manual P 95 5.6943 148 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHE. ML:2.0 0.00193 0.24 AML other m 2023-02-24T14:12:27.64
IV.PARC.HHN. ML:1.7 0.0005375000000000001 0.5 AML other m 2023-02-24T14:12:30.25
IV.SSP9.EHN. ML:1.9 0.0014399999999999999 0.62 AML other m 2023-02-24T14:12:30.30
IV.PARC.HHE. ML:1.6 0.0003965 0.34 AML other m 2023-02-24T14:12:30.94
IV.BADI.EHN. ML:1.5 0.0003155 0.5 AML other m 2023-02-24T14:12:32.18
IV.BADI.EHE. ML:1.6 0.000326 0.54 AML other m 2023-02-24T14:12:33.61
IV.CAFI.HHN. ML:1.7 0.000275 0.26 AML other m 2023-02-24T14:12:34.61
IV.CAFI.HNN. ML:1.7 0.00026749999999999994 0.26 AML other m 2023-02-24T14:12:34.61
IV.CAFI.HHE. ML:1.6 0.00019700000000000002 0.64 AML other m 2023-02-24T14:12:34.40
IV.CAFI.HNE. ML:1.6 0.000187 0.64 AML other m 2023-02-24T14:12:34.40
IV.ATPI.EHE. ML:1.5 0.00014800000000000002 1.04 AML other m 2023-02-24T14:12:36.96
IV.ATMI.HHE. ML:1.7 0.000215 0.8 AML other m 2023-02-24T14:12:36.37
IV.PIEI.HHE. ML:1.8 0.0002515 0.8 AML other m 2023-02-24T14:12:37.01
IV.ATVO.HHN. ML:1.5 0.0001225 0.68 AML other m 2023-02-24T14:12:37.41
IV.ATMI.HHN. ML:1.6 0.00016700000000000002 0.2 AML other m 2023-02-24T14:12:37.19
IV.ATPI.EHN. ML:1.4 0.00011235 0.36 AML other m 2023-02-24T14:12:37.44
IV.PIEI.HHN. ML:1.7 0.0001795 0.16 AML other m 2023-02-24T14:12:37.50
IV.SFI.EHE. ML:1.2 0.0000531 0.14 AML other m 2023-02-24T14:12:37.63
IV.NARO.HHN. ML:1.7 0.000153 0.48 AML other m 2023-02-24T14:12:37.93
IV.CPGN.EHE. ML:1.6 0.00018915000000000002 0.28 AML other m 2023-02-24T14:12:38.41
IV.NARO.HHE. ML:1.6 0.00014000000000000001 0.56 AML other m 2023-02-24T14:12:38.19
IV.ATVO.HHE. ML:1.6 0.00017749999999999998 0.4 AML other m 2023-02-24T14:12:38.65
IV.CPGN.EHN. ML:1.5 0.00014225 1.22 AML other m 2023-02-24T14:12:39.66
IV.ATFO.HHN. ML:1.7 0.0001535 1.68 AML other m 2023-02-24T14:12:41.92
IV.ATFO.HHE. ML:1.7 0.0001495 0.38 AML other m 2023-02-24T14:12:41.31
IV.FRON.EHN. ML:1.7 0.00011465000000000001 0.12 AML other m 2023-02-24T14:12:42.14
IV.SFI.EHN. ML:1.2 0.00004875 0.42 AML other m 2023-02-24T14:12:42.29
IV.FRON.EHE. ML:1.3 0.00005145 0.98 AML other m 2023-02-24T14:12:42.83
IV.MURB.HHN. ML:1.9 0.000183 1.76 AML other m 2023-02-24T14:12:42.98
IV.MPAG.EHN. ML:1.4 0.0000504 1.62 AML other m 2023-02-24T14:12:43.87
IV.LMD.HHN. ML:1.3 0.000042050000000000006 1.18 AML other m 2023-02-24T14:12:44.21
IV.MPAG.EHE. ML:1.2 0.0000339 1 AML other m 2023-02-24T14:12:44.46
IV.LMD.HHE. ML:1.4 0.00004935 1.4 AML other m 2023-02-24T14:12:45.80
IV.MURB.HHE. ML:1.8 0.0001705 1.12 AML other m 2023-02-24T14:12:46.17
IV.MGAB.HHE. ML:1.6 0.00005385 0.54 AML other m 2023-02-24T14:12:50.76
IV.MGAB.HHN. ML:1.5 0.0000465 1.76 AML other m 2023-02-24T14:12:51.97
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