Earthquake with magnitude of ML 1.4 on date 16-03-2023 and time 01:31:34 (UTC) in region 6 km NE Città di Castello (PG)

A magnitude ML 1.4 earthquake occured in region: 6 km NE Città di Castello (PG), on

  • 16-03-2023 01:31:34 (UTC)
  • 16-03-2023 02:31:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4930, 12.2890 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
Città di Castello PG 6 39913 39913
San Giustino PG 11 11297 51210
Monte Santa Maria Tiberina PG 12 1183 52393
Apecchio PU 13 1882 54275
Pietralunga PG 13 2111 56386
Citerna PG 14 3531 59917
Monterchi AR 14 1757 61674
Montone PG 15 1680 63354
Sansepolcro AR 15 15884 79238
Mercatello sul Metauro PU 18 1378 80616
Borgo Pace PU 18 606 81222
Anghiari AR 19 5638 86860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Arezzo (99543 inhabitants)
44 Km N of Perugia (166134 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
69 Km NW of Foligno (57155 inhabitants)
71 Km SW of Fano (60888 inhabitants)
72 Km S of Cesena (96758 inhabitants)
80 Km E of Siena (53903 inhabitants)
84 Km S of Forlì (117913 inhabitants)
89 Km E of Firenze (382808 inhabitants)
94 Km E of Scandicci (50609 inhabitants)
94 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 1.4 2023-03-16
01:31:34
43.4933 12.2893 10 2023-03-16
01:51:50
Sala Sismica INGV-Roma 115412561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-16 01:31:34 ± 0.07
Latitude 43.4933 ± 0.0036
Longitude 12.2893 ± 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 115412561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 372
Semi-minor axis of confidence ellipse (meter) 329
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
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) 110
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
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) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.36243
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 115412561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-16 01:51:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2023-03-16T01:31:48.08 0.6 undecidable manual S 99 40.2264 50 0.23 45
IV.NARO.HHZ. 2023-03-16T01:31:43.97 0.3 undecidable manual S 61 26.751 50 -0.3 69
IV.PIEI.HHZ. 2023-03-16T01:31:42.35 0.3 undecidable manual S 77 20.2686 116 0.08 73
IV.SSFR.HHZ. 2023-03-16T01:31:42.61 1.0 undecidable manual P 99 40.2264 50 0.44 22
IV.ATMI.HHZ. 2023-03-16T01:31:41.59 0.3 undecidable manual S 186 17.7711 119 0.11 73
IV.PARC.HHZ. 2023-03-16T01:31:41.74 0.6 undecidable manual S 347 17.6712 119 0.28 47
IV.SSP9.EHZ. 2023-03-16T01:31:40.74 0.3 undecidable manual S 305 15.5733 123 -0.08 73
IV.PE3.EHZ. 2023-03-16T01:31:40.36 0.6 positive manual P 36 27.9498 50 0.07 48
IV.MURB.HHZ. 2023-03-16T01:31:40.88 0.1 undecidable manual P 143 31.8459 50 -0.01 97
IV.APEC.HHZ. 2023-03-16T01:31:40.11 0.6 undecidable manual S 55 12.7761 128 0.08 49
IV.ATMI.HHZ. 2023-03-16T01:31:39.30 3.0 undecidable manual P 186 17.7711 119 0.8 0
IV.ATPI.EHZ. 2023-03-16T01:31:39.11 0.6 undecidable manual S 118 10.2786 134 -0.27 48
IV.NARO.HHZ. 2023-03-16T01:31:39.83 0.1 undecidable manual P 61 26.751 50 -0.28 92
IV.PARC.HHZ. 2023-03-16T01:31:38.62 0.1 undecidable manual P 347 17.6712 119 0.13 97
IV.SSP9.EHZ. 2023-03-16T01:31:38.33 0.3 negative manual P 305 15.5733 123 0.21 71
IV.ATVO.HHZ. 2023-03-16T01:31:38.21 0.1 negative manual P 143 15.5733 123 0.09 98
IV.PIEI.HHZ. 2023-03-16T01:31:38.99 0.6 undecidable manual P 77 20.2686 116 0.04 49
IV.ATPI.EHZ. 2023-03-16T01:31:37.26 0.1 undecidable manual P 118 10.2786 134 -0.02 100
IV.APEC.HHZ. 2023-03-16T01:31:37.78 0.1 positive manual P 55 12.7761 128 0.12 98
IV.BADI.EHZ. 2023-03-16T01:31:37.57 0.6 undecidable manual S 296 4.0959 158 -0.58 44
IV.BADI.EHZ. 2023-03-16T01:31:36.46 0.1 undecidable manual P 296 4.0959 158 -0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHN. ML:2.0 0.0019749999999999998 0.26 AML other m 2023-03-16T01:31:37.61
IV.BADI.EHE. ML:2.3 0.003715 0.16 AML other m 2023-03-16T01:31:37.64
IV.ATPI.EHE. ML:1.2 0.000195 0.24 AML other m 2023-03-16T01:31:39.34
IV.ATPI.EHN. ML:1.3 0.0002525 0.72 AML other m 2023-03-16T01:31:39.50
IV.APEC.HHN. ML:1.6 0.0004035 0.1 AML other m 2023-03-16T01:31:40.24
IV.APEC.HHE. ML:1.4 0.0002945 0.76 AML other m 2023-03-16T01:31:40.40
IV.ATVO.HHE. ML:1.3 0.000188 0.24 AML other m 2023-03-16T01:31:41.65
IV.ATVO.HHN. ML:1.2 0.00016450000000000001 0.54 AML other m 2023-03-16T01:31:42.11
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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