Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 16-03-2023 and time 01:30:39 (UTC) in region 5 km NE Città di Castello (PG)

A magnitude ML 1.7 earthquake occured in region: 5 km NE Città di Castello (PG), on

  • 16-03-2023 01:30:39 (UTC)
  • 16-03-2023 02:30:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4920, 12.2870 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 5 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 19 606 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)
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)
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
Bulletin
Rev1000 		ML 1.7 2023-03-16
01:30:39		 43.4922 12.2867 9 2024-03-01
17:18:10		 Bollettino Sismico Italiano INGV 117938841
Reviewed
Rev100 		ML 1.8 2023-03-16
01:30:39		 43.4927 12.2905 10 2023-03-16
01:53:07		 Sala Sismica INGV-Roma 115412601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-16 01:30:39 ± 0.03
Latitude 43.4922 ± 0.0018
Longitude 12.2867 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117938841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 203
Semi-minor axis of confidence ellipse (meter) 73
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62593
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 115412601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-16 01:53:07

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 43
Type of magnitude ML
Reference to an origin 117938841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-01 08:14:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2023-03-16T01:31:01.80 0.3 undecidable manual S 105 68.0763 50 0.97 50
IV.CSP1.EHZ. 2023-03-16T01:30:55.60 3.0 undecidable manual P 0.13 0
IV.MPAG.EHZ. 2023-03-16T01:30:53.60 0.3 undecidable manual S 68 40.9257 50 0.02 70
IV.SSFR.HHZ. 2023-03-16T01:30:53.40 0.3 undecidable manual S 99 40.4262 50 -0.03 70
IV.CESI.HHZ. 2023-03-16T01:30:53.02 3.0 negative manual P -0.18 0
IV.MML1.EHZ. 2023-03-16T01:30:52.21 0.6 undecidable manual P 127 69.4749 50 0.07 44
IV.EL6.EHZ. 2023-03-16T01:30:52.11 0.6 undecidable manual P 105 68.0763 50 0.17 43
IV.MGAB.HHZ. 2023-03-16T01:30:51.94 0.3 undecidable manual P 192 65.7897 50 0.36 63
IV.CAFI.HHZ. 2023-03-16T01:30:51.20 0.3 undecidable manual S 235 31.5462 50 0.14 70
IV.MURB.HHZ. 2023-03-16T01:30:51.40 0.6 undecidable manual S 143 31.8459 50 0.25 45
IV.FRON.EHZ. 2023-03-16T01:30:51.80 0.1 undecidable manual S 85 35.4423 50 -0.31 89
IV.CRE.HHZ. 2023-03-16T01:30:50.60 0.6 undecidable manual S 298 30.3474 50 -0.16 46
IV.ASSB.HHZ. 2023-03-16T01:30:50.22 0.1 undecidable manual P 149 58.1973 50 -0.19 88
IV.SFI.HNN. 2023-03-16T01:30:50.67 0.3 undecidable manual P 323 57.7977 50 0.32 64
IV.ATFO.HHZ. 2023-03-16T01:30:49.50 0.3 undecidable manual S 121 26.8509 109 -0.14 70
IV.ATCC.EHZ. 2023-03-16T01:30:48.26 0.1 undecidable manual P 140 44.4222 50 -0.03 93
IV.ATVA.EHE. 2023-03-16T01:30:48.10 0.3 undecidable manual S 180 23.6541 111 -0.51 65
IV.FOSV.EHZ. 2023-03-16T01:30:48.63 3.0 positive manual P 0.76 0
IV.ATBU.EHZ. 2023-03-16T01:30:48.10 0.3 undecidable manual S 95 21.1677 114 0.31 69
IV.ATLO.EHE. 2023-03-16T01:30:47.90 0.1 undecidable manual S 154 21.867 113 -0.14 94
IV.PIEI.HHZ. 2023-03-16T01:30:47.80 0.3 undecidable manual S 76 20.5683 114 0.19 70
IV.MPAG.EHZ. 2023-03-16T01:30:47.55 0.1 undecidable manual P 68 40.9257 50 -0.2 90
IV.TSM2.DHN.01 2023-03-16T01:30:47.20 0.3 undecidable manual S 123 19.5693 115 -0.08 72
IV.SSFR.HHZ. 2023-03-16T01:30:47.39 0.1 undecidable manual P 99 40.4262 50 -0.27 89
IV.MURB.HHZ. 2023-03-16T01:30:46.22 0.3 undecidable manual P 143 31.8459 50 -0.13 70
IV.TB01.DHZ.01 2023-03-16T01:30:46.70 0.1 undecidable manual S 136 17.1717 118 0.15 95
IV.PARC.HHZ. 2023-03-16T01:30:46.80 0.3 undecidable manual S 347 17.7711 117 0.06 73
IV.FRON.EHZ. 2023-03-16T01:30:46.52 0.1 positive manual P 85 35.4423 50 -0.38 88
IV.TB02.DHZ.01 2023-03-16T01:30:46.60 0.1 undecidable manual S 144 16.7721 119 0.18 95
IV.SSP9.EHZ. 2023-03-16T01:30:46.00 0.1 undecidable manual S 306 15.4734 121 -0.03 98
IV.CAFI.HHZ. 2023-03-16T01:30:46.28 0.1 positive manual P 235 31.5462 50 -0.02 95
IV.ATMI.HHZ. 2023-03-16T01:30:46.70 0.3 undecidable manual S 185 17.5713 118 0.02 73
IV.ATVO.HHZ. 2023-03-16T01:30:46.10 0.3 undecidable manual S 142 15.5733 121 0.03 73
IV.TSM3.DHZ.07 2023-03-16T01:30:45.30 0.1 undecidable manual S 155 13.2756 125 -0.12 96
IV.CRE.HHZ. 2023-03-16T01:30:45.95 0.1 undecidable manual P 298 30.3474 50 -0.17 92
IV.TB03.DHZ.01 2023-03-16T01:30:45.80 0.3 undecidable manual S 135 14.1747 123 0.14 72
IV.ATFO.HHZ. 2023-03-16T01:30:45.30 0.1 undecidable manual P 121 26.8509 109 -0.18 93
IV.APEC.HHZ. 2023-03-16T01:30:45.40 0.1 undecidable manual S 55 12.9759 125 0.07 97
IV.PE3.EHZ. 2023-03-16T01:30:45.68 0.1 positive manual P 37 28.2495 108 -0.05 95
IV.ATPC.HHE. 2023-03-16T01:30:45.60 0.1 undecidable manual S 95 13.7751 124 0.06 97
IV.NARO.HHZ. 2023-03-16T01:30:45.16 0.1 undecidable manual P 61 27.0507 109 -0.36 89
IV.ATLO.EHE. 2023-03-16T01:30:44.49 0.1 negative manual P 154 21.867 113 -0.06 96
IV.ATPI.EHZ. 2023-03-16T01:30:44.30 0.1 undecidable manual S 116 10.3785 132 -0.31 93
IV.ATBU.EHZ. 2023-03-16T01:30:44.50 0.1 positive manual P 95 21.1677 114 0.09 96
IV.PIEI.HHZ. 2023-03-16T01:30:44.20 0.1 undecidable manual P 76 20.5683 114 -0.1 95
IV.ATVA.EHE. 2023-03-16T01:30:44.83 0.3 undecidable manual P 180 23.6541 111 -0.05 72
IV.TSM2.DHN.01 2023-03-16T01:30:44.05 0.1 undecidable manual P 123 19.5693 115 -0.06 96
IV.ATMC.EHZ. 2023-03-16T01:30:44.10 0.3 undecidable manual S 236 9.0798 136 -0.18 72
IV.TB02.DHZ.01 2023-03-16T01:30:43.76 0.1 negative manual P 144 16.7721 119 0.14 95
IV.PARC.HHZ. 2023-03-16T01:30:43.93 0.1 undecidable manual P 347 17.7711 117 0.13 95
IV.TB01.DHZ.01 2023-03-16T01:30:43.71 0.1 negative manual P 136 17.1717 118 0.02 98
IV.TSM3.DHZ.07 2023-03-16T01:30:43.13 0.1 negative manual P 155 13.2756 125 0.09 97
IV.SSP9.EHZ. 2023-03-16T01:30:43.68 0.1 negative manual P 306 15.4734 121 0.29 93
IV.TB03.DHZ.01 2023-03-16T01:30:43.27 0.1 negative manual P 135 14.1747 123 0.09 97
IV.APEC.HHZ. 2023-03-16T01:30:43.12 0.1 positive manual P 55 12.9759 125 0.14 96
IV.ATPC.HHE. 2023-03-16T01:30:43.23 0.1 positive manual P 95 13.7751 124 0.12 96
IV.ATMI.HHZ. 2023-03-16T01:30:43.92 0.1 undecidable manual P 185 17.5713 118 0.15 95
IV.ATVO.HHZ. 2023-03-16T01:30:43.54 0.1 negative manual P 142 15.5733 121 0.12 96
IV.CDCA.HNZ. 2023-03-16T01:30:43.60 0.1 undecidable manual S 229 5.6943 148 0.05 99
IV.BADI.EHZ. 2023-03-16T01:30:42.90 0.1 undecidable manual S 300 3.8961 157 -0.37 93
IV.ATMC.EHZ. 2023-03-16T01:30:42.52 0.1 positive manual P 236 9.0798 136 0.14 97
IV.CDCA.HNZ. 2023-03-16T01:30:42.12 0.1 positive manual P 229 5.6943 148 0.16 97
IV.ATPI.EHZ. 2023-03-16T01:30:42.62 0.1 negative manual P 116 10.3785 132 0.05 98
IV.BADI.EHZ. 2023-03-16T01:30:41.81 0.1 negative manual P 300 3.8961 157 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHE. ML:2.9 0.014871230000000001 1.86 AML other m 2023-03-16T01:30:42.00
IV.BADI.EHN. ML:2.4 0.0052660355 0.12 AML other m 2023-03-16T01:30:43.09
IV.APEC.HHN. ML:1.9 0.0008725 0.1 AML other m 2023-03-16T01:30:45.65
IV.APEC.HHE. ML:1.9 0.00098 1.8 AML other m 2023-03-16T01:30:46.07
IV.ATVO.HHN. ML:1.8 0.0005834999999999999 0.24 AML other m 2023-03-16T01:30:46.60
IV.ATMI.HHE. ML:1.8 0.0005055000000000001 1.72 AML other m 2023-03-16T01:30:46.07
IV.ATVO.HHE. ML:1.8 0.0006699999999999999 1.82 AML other m 2023-03-16T01:30:46.99
IV.ATMI.HHN. ML:1.7 0.00039850000000000004 0.54 AML other m 2023-03-16T01:30:47.36
IV.PARC.HHE. ML:2.1 0.001046 0.26 AML other m 2023-03-16T01:30:47.33
IV.PARC.HHN. ML:1.8 0.000611 0.1 AML other m 2023-03-16T01:30:48.12
IV.PIEI.HHE. ML:1.8 0.00045638955000000005 0.18 AML other m 2023-03-16T01:30:48.45
IV.PIEI.HHN. ML:1.6 0.0002875 0.14 AML other m 2023-03-16T01:30:48.51
IV.ATFO.HHE. ML:1.8 0.0003195 1.46 AML other m 2023-03-16T01:30:49.83
IV.ATFO.HHN. ML:1.6 0.0002039253 0.12 AML other m 2023-03-16T01:30:49.90
IV.FRON.EHE. ML:2.1 0.00047799999999999996 0.14 AML other m 2023-03-16T01:30:52.17
IV.FRON.EHN. ML:2.1 0.0004575 0.12 AML other m 2023-03-16T01:30:52.30
IV.SSFR.HHE. ML:2.2 0.000579 0.18 AML other m 2023-03-16T01:30:54.48
IV.SSFR.HHN. ML:2.2 0.0004885 0.26 AML other m 2023-03-16T01:30:54.72
IV.ATPI.HNE. ML:1.5 0.00039207875 0.1192 AML other m 2023-03-16T01:30:44.66
IV.ATPI.HNN. ML:1.7 0.0007164172 0.08 AML other m 2023-03-16T01:30:44.82
IV.ATPI.EHN. ML:1.7 0.00069668495 0.08 AML other m 2023-03-16T01:30:44.82
IV.ATPI.EHE. ML:1.5 0.0003747677 0.1 AML other m 2023-03-16T01:30:44.61
IV.APEC.HNN. ML:1.9 0.00091929865 0.1696 AML other m 2023-03-16T01:30:46.07
IV.APEC.HNE. ML:1.8 0.00065658885 0.1296 AML other m 2023-03-16T01:30:45.70
IV.ATVO.HNN. ML:1.7 0.0005471256499999999 0.1592 AML other m 2023-03-16T01:30:46.52
IV.ATVO.HNE. ML:1.8 0.0006245321500000001 0.2 AML other m 2023-03-16T01:30:46.98
IV.SSP9.EHE. ML:0.6 0.00003535374 1.74 AML other m 2023-03-16T01:30:46.50
IV.SSP9.EHN. ML:0.9 0.000075210785 1.3 AML other m 2023-03-16T01:30:45.61
IV.ATFO.HNN. ML:1.5 0.00019020393000000003 0.12 AML other m 2023-03-16T01:30:49.91
IV.ATFO.HNE. ML:1.7 0.00030379213 0.22 AML other m 2023-03-16T01:30:49.84
IV.CRE.HHE. ML:1.0 0.000044094415 1.84 AML other m 2023-03-16T01:30:50.17
IV.CRE.HHN. ML:1.0 0.00004372986500000001 0.72 AML other m 2023-03-16T01:30:50.58
IV.MURB.HNN. ML:1.7 0.0002192651 0.1704 AML other m 2023-03-16T01:30:51.73
IV.MURB.HNE. ML:1.8 0.0002736881 0.4104 AML other m 2023-03-16T01:30:51.58
IV.MURB.HHN. ML:1.6 0.0001932312 0.82 AML other m 2023-03-16T01:30:51.72
IV.MURB.HHE. ML:1.7 0.0002228553 0.44 AML other m 2023-03-16T01:30:51.58
IV.CAFI.HHN. ML:1.2 0.00008069765 0.34 AML other m 2023-03-16T01:30:51.75
IV.CAFI.HNN. ML:1.2 0.000068304595 0.0896 AML other m 2023-03-16T01:30:51.76
IV.CAFI.HHE. ML:1.3 0.000095362115 0.1 AML other m 2023-03-16T01:30:51.40
IV.MPAG.HNN. ML:2.1 0.00045183635 0.7704 AML other m 2023-03-16T01:30:53.53
IV.MPAG.HNE. ML:2.1 0.00038477110999999995 0.7104 AML other m 2023-03-16T01:30:53.71
IV.MPAG.EHE. ML:1.3 0.000070104005 0.4 AML other m 2023-03-16T01:30:54.07
IV.MPAG.EHN. ML:1.4 0.000084943845 0.32 AML other m 2023-03-16T01:30:54.08
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