Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 29-12-2022 and time 01:59:02 (Italy) in region 7 km N Sansepolcro (AR)

A magnitude ML 1.1 earthquake occured in region: 7 km N Sansepolcro (AR), on

  • 29-12-2022 00:59:02 (UTC)
  • 29-12-2022 01:59:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6350, 12.1350 at 10 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
Sansepolcro AR 7 15884 15884
Pieve Santo Stefano AR 8 3183 19067
Badia Tedalda AR 9 1087 20154
San Giustino PG 10 11297 31451
Caprese Michelangelo AR 12 1426 32877
Anghiari AR 12 5638 38515
Borgo Pace PU 13 606 39121
Citerna PG 15 3531 42652
Sestino AR 16 1355 44007
Mercatello sul Metauro PU 16 1378 45385
Monterchi AR 17 1757 47142
Casteldelci RN 18 407 47549
Chiusi della Verna AR 18 2023 49572

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Arezzo (99543 inhabitants)
57 Km S of Cesena (96758 inhabitants)
59 Km SW of Rimini (147750 inhabitants)
62 Km NW of Perugia (166134 inhabitants)
66 Km S of Forlì (117913 inhabitants)
70 Km W of Pesaro (94582 inhabitants)
72 Km E of Firenze (382808 inhabitants)
74 Km E of Siena (53903 inhabitants)
75 Km W of Fano (60888 inhabitants)
75 Km S of Faenza (58541 inhabitants)
78 Km E of Scandicci (50609 inhabitants)
87 Km SE of Imola (69797 inhabitants)
87 Km S of Ravenna (159116 inhabitants)
88 Km E of Prato (191150 inhabitants)
88 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
Reviewed
Rev100 		ML 1.1 2022-12-29
00:59:02		 43.6352 12.1353 10 2022-12-29
02:26:57		 Sala Sismica INGV-Roma 113154621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-29 00:59:02 ± 0.08
Latitude 43.6352 ± 0.0045
Longitude 12.1353 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113154621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 529
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 165
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44337
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 113154621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-29 02:26:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNTT.EHZ. 2022-12-29T00:59:41.98 3.0 undecidable manual S -0.1 0
IV.SSFR.HHZ. 2022-12-29T00:59:20.86 3.0 undecidable manual S -0.32 0
IV.FRON.EHZ. 2022-12-29T00:59:18.79 0.3 undecidable manual S 105 49.2174 50 0.36 66
IV.CAFI.HHZ. 2022-12-29T00:59:15.39 0.6 undecidable manual S 202 36.5412 50 0.34 45
IV.PIEI.HHZ. 2022-12-29T00:59:14.47 0.6 undecidable manual S 109 33.9438 50 0.11 48
IV.NARO.HHZ. 2022-12-29T00:59:14.40 0.6 undecidable manual S 94 35.8419 50 -0.46 44
IV.ATMI.HHZ. 2022-12-29T00:59:14.40 0.6 undecidable manual S 162 35.0427 50 -0.25 46
IV.PE3.EHZ. 2022-12-29T00:59:13.49 0.3 undecidable manual S 77 29.748 50 0.26 70
IV.FRON.EHZ. 2022-12-29T00:59:11.46 1.0 positive manual P 105 49.2174 50 -0.24 23
IV.APEC.HHZ. 2022-12-29T00:59:11.99 0.6 undecidable manual S 110 24.3534 111 0.38 46
IV.ATMC.EHZ. 2022-12-29T00:59:10.38 0.6 undecidable manual S 168 21.3675 114 -0.27 47
IV.CAFI.HHZ. 2022-12-29T00:59:09.72 0.6 positive manual P 202 36.5412 50 -0.03 48
IV.BADI.EHZ. 2022-12-29T00:59:09.09 0.6 undecidable manual S 148 16.4724 120 -0.03 50
IV.NARO.HHZ. 2022-12-29T00:59:09.18 1.0 undecidable manual P 94 35.8419 50 -0.46 22
IV.ATMI.HHZ. 2022-12-29T00:59:09.48 0.6 undecidable manual P 162 35.0427 50 -0.04 48
IV.CRE.HHZ. 2022-12-29T00:59:08.71 0.6 undecidable manual S 263 14.874 123 0.06 50
IV.PE3.EHZ. 2022-12-29T00:59:08.78 0.1 negative manual P 77 29.748 50 0.08 97
IV.PIEI.HHZ. 2022-12-29T00:59:08.88 0.6 undecidable manual P 109 33.9438 50 -0.47 44
IV.APEC.HHZ. 2022-12-29T00:59:07.77 0.3 negative manual P 110 24.3534 111 0.01 74
IV.ATMC.EHZ. 2022-12-29T00:59:07.00 0.1 undecidable manual P 168 21.3675 114 -0.21 95
IV.CRE.HHZ. 2022-12-29T00:59:06.01 0.3 positive manual P 263 14.874 123 -0.05 75
IV.PARC.HHZ. 2022-12-29T00:59:06.68 0.6 undecidable manual S 80 8.3805 139 -0.26 48
IV.BADI.EHZ. 2022-12-29T00:59:06.37 0.3 positive manual P 148 16.4724 120 0.05 75
IV.SSP9.EHZ. 2022-12-29T00:59:06.72 0.6 undecidable manual S 183 6.7932 145 0.13 50
IT.SNS1.HNZ. 2022-12-29T00:59:06.87 0.6 undecidable manual S 183 6.8931 145 0.27 48
IV.SSP9.EHZ. 2022-12-29T00:59:04.96 1.0 undecidable manual P 183 6.7932 145 0.09 25
IT.SNS1.HNZ. 2022-12-29T00:59:04.97 0.1 undecidable manual P 183 6.8931 145 0.1 100
IV.PARC.HHZ. 2022-12-29T00:59:04.88 1.0 undecidable manual P 80 8.3805 139 -0.19 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.6 0.0006385 0.06 AML other m 2022-12-29T00:59:06.66
IV.PARC.HHE. ML:1.5 0.00043599999999999997 0.26 AML other m 2022-12-29T00:59:06.80
IV.SSP9.EHE. ML:1.0 0.0001665 0.08 AML other m 2022-12-29T00:59:07.10
IV.SSP9.EHN. ML:1.1 0.0001875 1.54 AML other m 2022-12-29T00:59:07.18
IV.CRE.HHE. ML:1.0 0.000089 1.14 AML other m 2022-12-29T00:59:08.74
IV.CRE.HHN. ML:1.1 0.000117 0.16 AML other m 2022-12-29T00:59:08.74
IV.BADI.EHN. ML:1.0 0.0000924 0.1 AML other m 2022-12-29T00:59:09.31
IV.BADI.EHE. ML:1.2 0.000133 0.34 AML other m 2022-12-29T00:59:09.38
IV.APEC.HHN. ML:1.1 0.0000753 0.82 AML other m 2022-12-29T00:59:12.52
IV.PE3.EHN. ML:1.3 0.00010585 0.3 AML other m 2022-12-29T00:59:13.84
IV.PE3.EHE. ML:1.4 0.0001285 1.76 AML other m 2022-12-29T00:59:14.88
IV.PIEI.HHE. ML:1.0 0.00004615 0.64 AML other m 2022-12-29T00:59:14.86
IV.NARO.HHE. ML:1.0 0.00003850000000000001 0.24 AML other m 2022-12-29T00:59:15.06
IV.NARO.HHN. ML:1.2 0.000059749999999999995 0.24 AML other m 2022-12-29T00:59:15.14
IV.PIEI.HHN. ML:0.8 0.00002863 0.28 AML other m 2022-12-29T00:59:15.69
IV.APEC.HHE. ML:1.2 0.00008795 0.32 AML other m 2022-12-29T00:59:16.06
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