Earthquake with magnitude of ML 0.4 on date 13-03-2023 and time 07:55:44 (Italy) in region 5 km NE Città di Castello (PG)

A magnitude ML 0.4 earthquake occured in region: 5 km NE Città di Castello (PG), on

  • 13-03-2023 06:55:44 (UTC)
  • 13-03-2023 07:55:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4920, 12.2830 at 6 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.

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 11 11297 51210
Monte Santa Maria Tiberina PG 11 1183 52393
Apecchio PU 13 1882 54275
Citerna PG 13 3531 57806
Pietralunga PG 14 2111 59917
Monterchi AR 14 1757 61674
Sansepolcro AR 14 15884 77558
Montone PG 15 1680 79238
Mercatello sul Metauro PU 18 1378 80616
Borgo Pace PU 19 606 81222
Anghiari AR 19 5638 86860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Arezzo (99543 inhabitants)
44 Km N of Perugia (166134 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
69 Km NW of Foligno (57155 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
71 Km SW of Fano (60888 inhabitants)
72 Km S of Cesena (96758 inhabitants)
79 Km E of Siena (53903 inhabitants)
84 Km S of Forlì (117913 inhabitants)
88 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
Bulletin
Rev1000
ML 0.4 2023-03-13
06:55:44
43.492 12.2833 7 2024-03-01
17:18:02
Bollettino Sismico Italiano INGV 116141861
Reviewed
Rev100
ML 0.4 2023-03-13
06:55:44
43.4922 12.2877 6 2023-03-13
07:18:55
Sala Sismica INGV-Roma 115310641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-13 06:55:44 ± 0.13
Latitude 43.4920 ± 0.0027
Longitude 12.2833 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116141861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 384
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
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) 93
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18706
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 115310641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-13 07:18:55

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 116141861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-07 13:33:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2023-03-13T06:56:03.82 3.0 positive manual P -0.05 0
IV.PIEI.HHZ. 2023-03-13T06:55:51.96 0.3 undecidable manual S 76 20.7681 107 0.03 72
IV.PARC.HHZ. 2023-03-13T06:55:50.95 0.3 undecidable manual S 348 17.7711 110 0.03 73
IV.TB02.DHZ.01 2023-03-13T06:55:50.99 0.3 undecidable manual S 143 16.872 111 0.35 68
IV.ATVO.HHZ. 2023-03-13T06:55:50.61 0.3 undecidable manual S 141 15.6732 113 0.34 68
IV.TB03.DH1.25 2023-03-13T06:55:49.73 0.1 undecidable manual S 134 14.3745 114 -0.1 96
IV.PIEI.HHZ. 2023-03-13T06:55:49.17 0.6 undecidable manual P 76 20.7681 107 0.44 44
IV.ATMC.EHE. 2023-03-13T06:55:48.08 0.3 undecidable manual S 236 8.88 126 -0.1 73
IV.PARC.HHZ. 2023-03-13T06:55:48.14 0.3 undecidable manual P 348 17.7711 110 -0.01 73
IV.ATPI.EHZ. 2023-03-13T06:55:48.54 0.1 undecidable manual S 116 10.5783 122 -0.14 96
IV.TSM2.DHN.01 2023-03-13T06:55:48.22 0.6 undecidable manual P 122 19.7691 108 -0.3 46
IV.ATVO.HHZ. 2023-03-13T06:55:47.74 0.3 undecidable manual P 141 15.6732 113 -0.03 73
IV.TB03.DH1.25 2023-03-13T06:55:47.33 0.1 undecidable manual P 134 14.3745 114 -0.19 95
IV.TB02.DHZ.01 2023-03-13T06:55:47.90 0.1 undecidable manual P 143 16.872 111 -0.09 96
IV.ATPI.EHZ. 2023-03-13T06:55:46.72 0.1 undecidable manual P 116 10.5783 122 -0.14 96
IV.BADI.EHZ. 2023-03-13T06:55:46.97 0.1 undecidable manual S 302 3.6963 150 0 100
IV.ATMC.EHE. 2023-03-13T06:55:46.67 0.1 undecidable manual P 236 8.88 126 0.1 97
IV.BADI.EHZ. 2023-03-13T06:55:45.91 0.1 undecidable manual P 302 3.6963 150 0.04 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.4 0.000023500762 0.08 AML other m 2023-03-13T06:55:50.88
IV.ATVO.HHE. ML:0.5 0.00002833254 0.1184 AML other m 2023-03-13T06:55:50.66
IV.PARC.HHE. ML:0.5 0.00002803924 0.16 AML other m 2023-03-13T06:55:51.49
IV.PARC.HHN. ML:0.4 0.000021608855 0.0992 AML other m 2023-03-13T06:55:51.36
IV.PIEI.HHE. ML:0.3 0.000012923823000000001 0.1792 AML other m 2023-03-13T06:55:53.00
IV.PIEI.HHN. ML:0.3 0.000014968215 0.1792 AML other m 2023-03-13T06:55:52.27
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download