Earthquake with magnitude of ML 0.9 on date 29-12-2022 and time 01:31:03 (UTC) in region 8 km N Sansepolcro (AR)

A magnitude ML 0.9 earthquake occured in region: 8 km N Sansepolcro (AR), on

  • 29-12-2022 01:31:03 (UTC)
  • 29-12-2022 02:31:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6430, 12.1370 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.

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 8 15884 15884
Pieve Santo Stefano AR 8 3183 19067
Badia Tedalda AR 8 1087 20154
San Giustino PG 11 11297 31451
Caprese Michelangelo AR 12 1426 32877
Borgo Pace PU 13 606 33483
Anghiari AR 13 5638 39121
Sestino AR 15 1355 40476
Citerna PG 16 3531 44007
Mercatello sul Metauro PU 16 1378 45385
Casteldelci RN 17 407 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)
56 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 E of Siena (53903 inhabitants)
74 Km S of Faenza (58541 inhabitants)
74 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)
88 Km E of Prato (191150 inhabitants)
89 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 0.9 2022-12-29
01:31:03
43.643 12.1372 10 2022-12-29
02:30:30
Sala Sismica INGV-Roma 113154691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-29 01:31:03 ± 0.07
Latitude 43.6430 ± 0.0045
Longitude 12.1372 ± 0.0037
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 113154691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 351
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 113154691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-29 02:30:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2022-12-29T01:31:15.33 0.6 undecidable manual S 96 35.742 50 -0.15 49
IV.CAFI.HHZ. 2022-12-29T01:31:15.74 0.6 undecidable manual S 202 37.4292 50 -0.18 48
IV.PE3.EHZ. 2022-12-29T01:31:14.01 0.6 undecidable manual S 78 29.4483 50 0.23 48
IV.PIEI.HHZ. 2022-12-29T01:31:14.96 0.6 undecidable manual S 110 34.1436 50 -0.08 50
IV.APEC.HHZ. 2022-12-29T01:31:12.62 0.6 undecidable manual S 112 24.5532 112 0.2 49
IV.MPAG.EHZ. 2022-12-29T01:31:11.35 3.0 undecidable manual P -1.44 0
IV.NARO.HHZ. 2022-12-29T01:31:10.10 0.6 undecidable manual P 96 35.742 50 -0.2 48
IV.CAFI.HHZ. 2022-12-29T01:31:10.65 0.1 positive manual P 202 37.4292 50 0.09 98
IV.BADI.EHZ. 2022-12-29T01:31:10.10 0.3 undecidable manual S 150 17.0718 120 0.01 78
IV.CRE.HHZ. 2022-12-29T01:31:09.48 0.6 undecidable manual S 260 15.1737 123 -0.03 52
IV.PE3.EHZ. 2022-12-29T01:31:09.56 0.6 undecidable manual P 78 29.4483 50 0.24 48
IV.PIEI.HHZ. 2022-12-29T01:31:09.78 0.6 undecidable manual P 110 34.1436 50 -0.26 48
IV.APEC.HHZ. 2022-12-29T01:31:08.65 0.1 negative manual P 112 24.5532 112 0.12 100
IV.BADI.EHZ. 2022-12-29T01:31:07.27 0.6 undecidable manual P 150 17.0718 120 0.08 51
IV.PARC.HHZ. 2022-12-29T01:31:07.43 0.3 undecidable manual S 86 8.1807 141 -0.25 75
IV.CRE.HHZ. 2022-12-29T01:31:06.89 0.3 positive manual P 260 15.1737 123 0.04 77
IV.PARC.HHZ. 2022-12-29T01:31:05.82 0.6 undecidable manual P 86 8.1807 141 0.02 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.5 0.000459 0.06 AML other m 2022-12-29T01:31:07.55
IV.PARC.HHE. ML:1.3 0.0002765 0.2 AML other m 2022-12-29T01:31:07.69
IV.CRE.HHE. ML:0.7 0.000047850000000000004 1.14 AML other m 2022-12-29T01:31:09.62
IV.CRE.HHN. ML:0.8 0.00006110000000000001 0.16 AML other m 2022-12-29T01:31:09.70
IV.BADI.EHE. ML:0.9 0.00006625 0.32 AML other m 2022-12-29T01:31:10.32
IV.BADI.EHN. ML:0.8 0.0000591 0.78 AML other m 2022-12-29T01:31:11.76
IV.APEC.HHN. ML:1.0 0.000059999999999999995 0.36 AML other m 2022-12-29T01:31:13.58
IV.NARO.HHN. ML:1.0 0.00003645 1.06 AML other m 2022-12-29T01:31:15.67
IV.PIEI.HHE. ML:0.9 0.00003145 0.64 AML other m 2022-12-29T01:31:15.74
IV.NARO.HHE. ML:0.9 0.00002815 0.68 AML other m 2022-12-29T01:31:15.94
IV.PIEI.HHN. ML:0.7 0.000018925 1.04 AML other m 2022-12-29T01:31:16.57
IV.APEC.HHE. ML:1.0 0.000056 1.68 AML other m 2022-12-29T01:31:16.10
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