Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 27-03-2022 and time 23:03:15 (Italy) in region 8 km NE Città di Castello (PG)

A magnitude ML 0.4 earthquake occured in region: 8 km NE Città di Castello (PG), on

  • 27-03-2022 21:03:15 (UTC)
  • 27-03-2022 23:03:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4960, 12.3260 at 9 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.

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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
Città di Castello PG 8 39913 39913
Apecchio PU 10 1882 41795
Pietralunga PG 11 2111 43906
San Giustino PG 13 11297 55203
Monte Santa Maria Tiberina PG 15 1183 56386
Montone PG 15 1680 58066
Citerna PG 17 3531 61597
Sansepolcro AR 17 15884 77481
Mercatello sul Metauro PU 17 1378 78859
Monterchi AR 17 1757 80616
Piobbico PU 18 2029 82645
Borgo Pace PU 18 606 83251

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Arezzo (99543 inhabitants)
44 Km N of Perugia (166134 inhabitants)
66 Km SW of Rimini (147750 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
67 Km NW of Foligno (57155 inhabitants)
68 Km SW of Fano (60888 inhabitants)
72 Km S of Cesena (96758 inhabitants)
83 Km E of Siena (53903 inhabitants)
84 Km S of Forlì (117913 inhabitants)
91 Km E of Firenze (382808 inhabitants)
95 Km SE of Faenza (58541 inhabitants)
97 Km E of Scandicci (50609 inhabitants)
97 Km W of Ancona (100861 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 2022-03-27
21:03:15		 43.496 12.3255 9 2022-07-08
12:33:50		 Bollettino Sismico Italiano INGV 103796251
Reviewed
Rev100 		ML 0.3 2022-03-27
21:03:16		 43.4977 12.3175 9 2022-03-27
21:20:57		 Sala Sismica INGV-Roma 102478281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-27 21:03:15 ± 0.11
Latitude 43.4960 ± 0.0018
Longitude 12.3255 ± 0.0037
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 103796251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 12
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
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) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.21943
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 103796251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-26 10:40:44

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 102478281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-27 21:20:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVA.EHZ. 2022-03-27T21:03:24.73 0.6 undecidable manual S 188 24.3534 111 -0.31 46
IV.NARO.HHZ. 2022-03-27T21:03:24.63 0.3 undecidable manual S 58 24.1536 111 -0.34 68
IV.ATLO.EHZ. 2022-03-27T21:03:23.96 0.6 undecidable manual S 162 21.1677 114 -0.04 49
IV.ATMI.HHZ. 2022-03-27T21:03:23.28 0.3 undecidable manual S 194 18.5703 117 0.09 73
IV.ATBU.EHZ. 2022-03-27T21:03:23.11 0.3 undecidable manual S 97 18.0708 117 0.07 73
IV.PIEI.HHZ. 2022-03-27T21:03:23.00 0.3 undecidable manual S 75 17.3715 118 0.16 72
IV.PARC.HHZ. 2022-03-27T21:03:23.46 0.6 undecidable manual S 338 18.2706 117 0.34 46
IV.TB02.DHZ.01 2022-03-27T21:03:22.60 0.6 undecidable manual S 154 15.4734 121 0.34 46
IV.ATVO.HHZ. 2022-03-27T21:03:22.18 0.6 undecidable manual S 153 14.2746 123 0.29 47
IV.TB03.DHZ.01 2022-03-27T21:03:21.66 0.6 undecidable manual S 147 12.5763 127 0.25 47
IV.TSM3.DHZ. 2022-03-27T21:03:21.61 0.6 undecidable manual S 169 12.7761 126 0.13 48
IV.ATMC.EHZ. 2022-03-27T21:03:21.29 0.6 undecidable manual S 243 11.9769 128 0.03 50
IV.ATVA.EHZ. 2022-03-27T21:03:21.06 0.3 undecidable manual P 188 24.3534 111 -0.15 71
IV.APEC.HHZ. 2022-03-27T21:03:20.85 0.3 undecidable manual S 48 10.2786 132 0.05 74
IV.ATPC.HNZ. 2022-03-27T21:03:20.97 0.6 undecidable manual S 99 10.6782 131 0.05 49
IV.NARO.HHZ. 2022-03-27T21:03:20.94 0.3 undecidable manual P 58 24.1536 111 -0.24 70
IV.PARC.HHZ. 2022-03-27T21:03:20.28 0.1 undecidable manual P 338 18.2706 117 0.17 95
IV.ATLO.EHZ. 2022-03-27T21:03:20.32 0.3 undecidable manual P 162 21.1677 114 -0.29 69
IV.ATBU.EHZ. 2022-03-27T21:03:20.25 0.1 undecidable manual P 97 18.0708 117 0.19 95
IV.ATMC.EHZ. 2022-03-27T21:03:19.11 0.1 undecidable manual P 243 11.9769 128 0.08 98
IV.TB02.DHZ.01 2022-03-27T21:03:19.76 0.1 undecidable manual P 154 15.4734 121 0.15 96
IV.BADI.EHZ. 2022-03-27T21:03:19.69 0.3 undecidable manual S 283 6.6933 144 -0.28 71
IV.ATVO.HHZ. 2022-03-27T21:03:19.57 0.3 undecidable manual P 153 14.2746 123 0.17 72
IV.ATMI.HHZ. 2022-03-27T21:03:19.90 0.3 undecidable manual P 194 18.5703 117 -0.25 70
IV.TB03.DHZ.01 2022-03-27T21:03:19.24 0.1 undecidable manual P 147 12.5763 127 0.12 97
IV.ATPI.EHZ. 2022-03-27T21:03:19.94 0.3 undecidable manual S 129 7.9809 139 -0.3 71
IV.PIEI.HHZ. 2022-03-27T21:03:19.94 0.3 undecidable manual P 75 17.3715 118 -0.01 74
IV.TSM3.DHZ. 2022-03-27T21:03:19.18 0.1 undecidable manual P 169 12.7761 126 0.02 99
IV.ATPI.EHZ. 2022-03-27T21:03:18.26 0.1 undecidable manual P 129 7.9809 139 -0.19 97
IV.APEC.HHZ. 2022-03-27T21:03:18.84 0.1 undecidable manual P 48 10.2786 132 0.08 99
IV.ATPC.HNZ. 2022-03-27T21:03:18.55 0.1 undecidable manual P 99 10.6782 131 -0.29 94
IV.BADI.EHZ. 2022-03-27T21:03:18.32 0.1 undecidable manual P 283 6.6933 144 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHN. ML:0.6 0.0000696 0.3 AML other m 2022-03-27T21:03:19.92
IV.BADI.EHE. ML:0.5 0.000048 1.06 AML other m 2022-03-27T21:03:19.24
IV.APEC.HHE. ML:0.4 0.00002885 0.42 AML other m 2022-03-27T21:03:21.68
IV.APEC.HHN. ML:0.3 0.00002675 0.98 AML other m 2022-03-27T21:03:23.26
IV.PIEI.HHE. ML:0.2 0.000016289999999999998 0.18 AML other m 2022-03-27T21:03:23.66
IV.PIEI.HHN. ML:0.1 0.000011945 1.58 AML other m 2022-03-27T21:03:31.06
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