Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 10-02-2023 and time 23:13:17 (UTC) in region 5 km NE Città di Castello (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km NE Città di Castello (PG), on

  • 10-02-2023 23:13:17 (UTC)
  • 11-02-2023 00:13:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4990, 12.2640 at 9 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 9 11297 51210
Monte Santa Maria Tiberina PG 11 1183 52393
Citerna PG 12 3531 55924
Monterchi AR 12 1757 57681
Sansepolcro AR 13 15884 73565
Apecchio PU 14 1882 75447
Pietralunga PG 15 2111 77558
Montone PG 16 1680 79238
Anghiari AR 17 5638 84876
Mercatello sul Metauro PU 18 1378 86254
Borgo Pace PU 18 606 86860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Arezzo (99543 inhabitants)
45 Km N of Perugia (166134 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
70 Km SW of Pesaro (94582 inhabitants)
70 Km NW of Foligno (57155 inhabitants)
71 Km S of Cesena (96758 inhabitants)
72 Km SW of Fano (60888 inhabitants)
78 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
Reviewed
Rev100 		ML 0.9 2023-02-10
23:13:17		 43.4992 12.2638 9 2023-02-10
23:26:30		 Sala Sismica INGV-Roma 114330031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-10 23:13:17 ± 0.12
Latitude 43.4992 ± 0.0063
Longitude 12.2638 ± 0.0062
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114330031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 653
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 335
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.01799
Epicentral distance of station farthest from the epicenter (degree) 0.38131
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 114330031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-10 23:26:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2023-02-10T23:13:27.53 0.6 undecidable manual S 232 30.4473 106 -0.69 40
IV.SSFR.HHZ. 2023-02-10T23:13:25.36 0.3 undecidable manual P 99 42.3243 50 -0.07 69
IV.PIEI.HHZ. 2023-02-10T23:13:25.37 0.1 undecidable manual S 79 22.1556 112 -0.12 94
IV.ATMI.HHZ. 2023-02-10T23:13:24.53 0.1 undecidable manual S 179 18.2706 116 0.28 92
IV.FRON.EHZ. 2023-02-10T23:13:24.25 0.3 undecidable manual P 87 37.2294 50 -0.4 65
IV.CAFI.HHZ. 2023-02-10T23:13:23.60 0.1 undecidable manual P 232 30.4473 106 0.04 95
IV.CRE.HHZ. 2023-02-10T23:13:23.39 0.3 undecidable manual P 298 28.3494 107 0.23 68
IV.NARO.HHZ. 2023-02-10T23:13:23.73 0.1 undecidable manual P 64 28.3494 107 0.58 84
IV.ATVO.HHZ. 2023-02-10T23:13:23.80 0.6 undecidable manual S 138 17.3715 117 -0.16 47
IV.ATPI.EHZ. 2023-02-10T23:13:22.32 0.6 undecidable manual S 116 12.3765 126 -0.16 48
IV.ATVO.HHZ. 2023-02-10T23:13:21.23 0.6 negative manual P 138 17.3715 117 0.12 48
IV.ATMI.HHZ. 2023-02-10T23:13:21.45 0.1 undecidable manual P 179 18.2706 116 0.18 94
IV.PIEI.HHZ. 2023-02-10T23:13:21.89 0.1 undecidable manual P 79 22.1556 112 -0.1 95
IV.ATPI.EHZ. 2023-02-10T23:13:20.21 0.1 undecidable manual P 116 12.3765 126 -0.04 98
IV.BADI.EHZ. 2023-02-10T23:13:19.98 0.6 undecidable manual S 307 1.998 167 -0.37 46
IV.BADI.EHZ. 2023-02-10T23:13:19.02 0.1 undecidable manual P 307 1.998 167 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:0.8 0.000051596925 0.384 AML other m 2023-02-10T23:13:24.33
IV.ATVO.HHN. ML:0.9 0.00006965 0.22 AML other m 2023-02-10T23:13:24.70
IV.BADI.EHE. ML:0.0 0.00033653225 0.0896 AML other m 2023-02-10T23:13:20.32
IV.BADI.EHN. ML:0.0 0.00038056285 0.256 AML other m 2023-02-10T23:13:20.19
IV.ATPI.HNE. ML:1.0 0.00011962725 0.8448 AML other m 2023-02-10T23:13:27.59
IV.ATPI.HNN. ML:1.1 0.00015140310000000002 1.152 AML other m 2023-02-10T23:13:23.35
IV.ATPI.EHE. ML:0.7 0.00005398662 0.1024 AML other m 2023-02-10T23:13:22.32
IV.ATPI.EHN. ML:0.8 0.00006569632 0.0768 AML other m 2023-02-10T23:13:22.57
IV.ATVO.HNE. ML:1.1 0.00009906094 0.7808 AML other m 2023-02-10T23:13:25.84
IV.ATVO.HNN. ML:1.1 0.00012151941999999999 1.1392 AML other m 2023-02-10T23:13:20.33
IV.ATMI.HHE. ML:0.7 0.00003996756999999999 2.88 AML other m 2023-02-10T23:13:22.58
IV.ATMI.HHN. ML:0.7 0.000038176015 1.6128 AML other m 2023-02-10T23:13:22.36
IV.PIEI.HHE. ML:0.6 0.000030852445 0.1536 AML other m 2023-02-10T23:13:26.55
IV.PIEI.HHN. ML:0.5 0.000018804805 0.4224 AML other m 2023-02-10T23:13:26.04
IV.PIEI.HNE. ML:1.3 0.00013277806 0.6912 AML other m 2023-02-10T23:13:25.81
IV.PIEI.HNN. ML:1.3 0.00014034694999999999 1.4976 AML other m 2023-02-10T23:13:29.45
IV.CRE.HHE. ML:0.8 0.00002891893 5.5552 AML other m 2023-02-10T23:13:32.67
IV.CRE.HHN. ML:0.7 0.000023772460000000004 5.3248 AML other m 2023-02-10T23:13:23.43
IV.CAFI.HNE. ML:0.9 0.00003950078999999999 3.1232 AML other m 2023-02-10T23:13:30.20
IV.CAFI.HNN. ML:1.0 0.00005166094 2.5728 AML other m 2023-02-10T23:13:28.97
IV.CAFI.HHE. ML:0.7 0.000025749865 3.4176 AML other m 2023-02-10T23:13:30.35
IV.CAFI.HHN. ML:0.7 0.00002343617 2.56 AML other m 2023-02-10T23:13:29.10
IV.NARO.HHE. ML:0.9 0.000040629860000000006 1.6 AML other m 2023-02-10T23:13:24.66
IV.NARO.HHN. ML:0.6 0.000019325257000000002 0.896 AML other m 2023-02-10T23:13:28.23
IV.FRON.EHE. ML:0.9 0.0000308889 2.2656 AML other m 2023-02-10T23:13:40.17
IV.FRON.EHN. ML:1.0 0.0000338002 1.6512 AML other m 2023-02-10T23:13:36.72
IV.SSFR.HHE. ML:1.0 0.000035567225 1.344 AML other m 2023-02-10T23:13:31.85
IV.SSFR.HHN. ML:1.2 0.00004861771500000001 2.2656 AML other m 2023-02-10T23:13:31.97
IV.SSFR.HNE. ML:1.6 0.00013951665000000002 1.2928 AML other m 2023-02-10T23:13:34.29
IV.SSFR.HNN. ML:1.7 0.00017075585 1.1008 AML other m 2023-02-10T23:13:34.75
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