Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 29-12-2022 and time 07:21:29 (UTC) in region 8 km E Pieve Santo Stefano (AR)

A magnitude ML 1.2 earthquake occured in region: 8 km E Pieve Santo Stefano (AR), on

  • 29-12-2022 07:21:29 (UTC)
  • 29-12-2022 08:21:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6460, 12.1340 at 10 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
Pieve Santo Stefano AR 8 3183 3183
Badia Tedalda AR 8 1087 4270
Sansepolcro AR 8 15884 20154
San Giustino PG 11 11297 31451
Caprese Michelangelo AR 12 1426 32877
Anghiari AR 13 5638 38515
Borgo Pace PU 13 606 39121
Sestino AR 15 1355 40476
Citerna PG 16 3531 44007
Casteldelci RN 16 407 44414
Mercatello sul Metauro PU 16 1378 45792
Chiusi della Verna AR 17 2023 47815
Monterchi AR 18 1757 49572
Verghereto FC 20 1907 51479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Arezzo (99543 inhabitants)
55 Km S of Cesena (96758 inhabitants)
58 Km SW of Rimini (147750 inhabitants)
63 Km NW of Perugia (166134 inhabitants)
65 Km S of Forlì (117913 inhabitants)
69 Km W of Pesaro (94582 inhabitants)
72 Km E of Firenze (382808 inhabitants)
74 Km S of Faenza (58541 inhabitants)
74 Km E of Siena (53903 inhabitants)
75 Km W of Fano (60888 inhabitants)
78 Km E of Scandicci (50609 inhabitants)
86 Km SE of Imola (69797 inhabitants)
86 Km S of Ravenna (159116 inhabitants)
87 Km E of Prato (191150 inhabitants)
90 Km NW of Foligno (57155 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 1.2 2022-12-29
07:21:29		 43.6457 12.1338 10 2024-03-01
15:28:27		 Bollettino Sismico Italiano INGV 118557591
Reviewed
Rev100 		ML 1.2 2022-12-29
07:21:29		 43.6508 12.1328 10 2022-12-29
07:41:11		 Sala Sismica INGV-Roma 113158521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-29 07:21:29 ± 0.05
Latitude 43.6457 ± 0.0036
Longitude 12.1338 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118557591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.07195
Epicentral distance of station farthest from the epicenter (degree) 0.52970
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 113158521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-29 07:41:11

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 118557591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-19 12:58:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2022-12-29T07:21:47.58 0.6 undecidable manual S 114 57.0984 50 0.36 43
IV.PIEI.HHZ. 2022-12-29T07:21:41.09 0.1 undecidable manual S 111 34.4433 50 -0.09 95
IV.ATVO.HHZ. 2022-12-29T07:21:41.94 0.3 undecidable manual S 143 36.5412 50 0.2 69
IV.SFI.EHZ. 2022-12-29T07:21:41.75 0.6 undecidable manual S 321 36.8298 50 -0.06 48
IV.CAFI.HHZ. 2022-12-29T07:21:41.77 0.3 undecidable manual S 201 37.629 50 -0.25 69
IV.LMD.HHZ. 2022-12-29T07:21:40.01 0.3 undecidable manual P 325 58.7967 50 0.12 68
IV.SSFR.HHZ. 2022-12-29T07:21:39.72 0.3 undecidable manual P 114 57.0984 50 0.1 68
IV.APEC.HHZ. 2022-12-29T07:21:38.78 0.3 undecidable manual S 113 24.9528 111 0.26 70
IV.CAFI.HHZ. 2022-12-29T07:21:36.65 0.1 undecidable manual P 201 37.629 50 0.04 96
IV.BADI.EHZ. 2022-12-29T07:21:36.12 0.3 undecidable manual S 149 17.4714 119 -0.06 74
IV.ATVO.HHZ. 2022-12-29T07:21:36.41 0.1 undecidable manual P 143 36.5412 50 -0.04 96
IV.SFI.EHZ. 2022-12-29T07:21:36.55 0.3 undecidable manual P 321 36.8298 50 0.06 71
IV.CRE.HHZ. 2022-12-29T07:21:35.39 0.3 undecidable manual S 259 14.9739 123 -0.03 75
IV.PIEI.HHZ. 2022-12-29T07:21:35.76 0.1 negative manual P 111 34.4433 50 -0.37 90
IV.APEC.HHZ. 2022-12-29T07:21:34.60 0.1 undecidable manual P 113 24.9528 111 0.01 98
IV.PARC.HHZ. 2022-12-29T07:21:33.45 0.1 undecidable manual S 88 8.3805 139 -0.25 96
IV.SSP9.EHZ. 2022-12-29T07:21:33.58 0.3 undecidable manual S 181 7.9809 141 -0.02 76
IV.BADI.EHZ. 2022-12-29T07:21:33.26 0.3 undecidable manual P 149 17.4714 119 0.02 74
IV.CRE.HHZ. 2022-12-29T07:21:32.88 0.1 positive manual P 259 14.9739 123 0.08 99
IV.SSP9.EHZ. 2022-12-29T07:21:31.87 0.1 positive manual P 181 7.9809 141 0.12 99
IV.PARC.HHZ. 2022-12-29T07:21:31.87 0.1 undecidable manual P 88 8.3805 139 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHN. ML:1.3 0.00030649999999999997 0.28 AML other m 2022-12-29T07:21:33.87
IV.SSP9.EHE. ML:1.1 0.00016649999999999998 0.38 AML other m 2022-12-29T07:21:34.51
IV.BADI.EHN. ML:1.5 0.000241 0.18 AML other m 2022-12-29T07:21:36.26
IV.BADI.EHE. ML:1.5 0.0002715 0.34 AML other m 2022-12-29T07:21:36.28
IV.CRE.HHE. ML:1.0 0.0000965 0.32 AML other m 2022-12-29T07:21:36.88
IV.CRE.HHN. ML:1.2 0.00017199999999999998 0.22 AML other m 2022-12-29T07:21:36.64
IV.APEC.HHE. ML:1.4 0.00016599999999999997 1.14 AML other m 2022-12-29T07:21:39.71
IV.APEC.HHN. ML:1.5 0.0001835 0.36 AML other m 2022-12-29T07:21:39.38
IV.PIEI.HHE. ML:1.3 0.00009070000000000001 0.32 AML other m 2022-12-29T07:21:41.73
IV.SFI.EHN. ML:0.9 0.00002915 1.54 AML other m 2022-12-29T07:21:41.20
IV.CAFI.HHN. ML:1.0 0.0000371 0.78 AML other m 2022-12-29T07:21:42.43
IV.SFI.EHE. ML:1.2 0.000055599999999999996 0.74 AML other m 2022-12-29T07:21:42.09
IV.CAFI.HHE. ML:0.9 0.00003105 0.9 AML other m 2022-12-29T07:21:42.50
IV.PIEI.HHN. ML:1.1 0.0000486 0.3 AML other m 2022-12-29T07:21:42.71
IV.ATVO.HHN. ML:1.5 0.00011649999999999999 0.18 AML other m 2022-12-29T07:21:42.79
IV.ATVO.HHE. ML:1.5 0.000117 0.64 AML other m 2022-12-29T07:21:42.95
IV.LMD.HHE. ML:1.1 0.000027000000000000002 0.6 AML other m 2022-12-29T07:21:49.31
IV.LMD.HHN. ML:1.2 0.00003145 1.26 AML other m 2022-12-29T07:21:49.97
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