Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 09-03-2023 and time 08:38:40 (UTC) in region 5 km SE San Giustino (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km SE San Giustino (PG), on

  • 09-03-2023 08:38:40 (UTC)
  • 09-03-2023 09:38:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5110, 12.2190 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.

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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
San Giustino PG 6 11297 11297
Città di Castello PG 6 39913 51210
Citerna PG 8 3531 54741
Monterchi AR 9 1757 56498
Sansepolcro AR 9 15884 72382
Monte Santa Maria Tiberina PG 9 1183 73565
Anghiari AR 14 5638 79203
Apecchio PU 17 1882 81085
Borgo Pace PU 18 606 81691
Mercatello sul Metauro PU 18 1378 83069
Montone PG 19 1680 84749
Pietralunga PG 19 2111 86860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Arezzo (99543 inhabitants)
47 Km NW of Perugia (166134 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
70 Km S of Cesena (96758 inhabitants)
71 Km SW of Pesaro (94582 inhabitants)
73 Km NW of Foligno (57155 inhabitants)
74 Km SW of Fano (60888 inhabitants)
75 Km E of Siena (53903 inhabitants)
81 Km S of Forlì (117913 inhabitants)
83 Km E of Firenze (382808 inhabitants)
88 Km E of Scandicci (50609 inhabitants)
90 Km SE of Faenza (58541 inhabitants)
99 Km E of Prato (191150 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 0.6 2023-03-09
08:38:40		 43.5108 12.2193 6 2024-03-01
17:18:00		 Bollettino Sismico Italiano INGV 115699041
Reviewed
Rev100 		ML 0.5 2023-03-09
08:38:40		 43.5137 12.2318 6 2023-03-09
08:56:22		 Sala Sismica INGV-Roma 115139521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-09 08:38:40 ± 0.06
Latitude 43.5108 ± 0.0018
Longitude 12.2193 ± 0.0025
Depth (km) 6 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115699041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 23
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 115699041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-24 15:54:28

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 115139521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-09 08:56:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BNI.HHZ. 2023-03-09T08:40:29.36 3.0 undecidable manual Sn 2.52 0
IV.MFNL.HHZ. 2023-03-09T08:40:07.44 3.0 positive manual Pn 7.92 0
IV.MILZ.HHZ. 2023-03-09T08:40:07.95 3.0 undecidable manual Pn 7.53 0
IV.ERC.EHZ. 2023-03-09T08:39:58.95 3.0 undecidable manual Pn 3.22 0
IV.TDS.HHZ. 2023-03-09T08:39:58.56 3.0 undecidable manual Pn 7.73 0
MN.TRI.HHZ. 2023-03-09T08:39:57.63 3.0 undecidable manual Sg 4.92 0
IV.GIUL.HHZ. 2023-03-09T08:39:41.34 3.0 undecidable manual Sn 2.96 0
IV.MMO1.EHZ. 2023-03-09T08:39:14.84 3.0 undecidable manual S -1.01 0
IV.RIBO.EHZ.01 2023-03-09T08:39:02.55 3.0 undecidable manual S 0.03 0
IV.BDI.HHZ. 2023-03-09T08:38:57.59 3.0 undecidable manual P -0.01 0
IV.CAFI.HNZ. 2023-03-09T08:38:50.70 0.6 undecidable manual S 225 28.6491 103 -0.08 48
IV.TB02.DHN. 2023-03-09T08:38:48.52 0.6 undecidable manual S 135 21.867 106 0.03 49
IV.TB01.DHZ. 2023-03-09T08:38:48.57 0.6 undecidable manual S 129 22.5552 106 -0.16 48
IV.ATVO.HHZ. 2023-03-09T08:38:48.13 0.6 undecidable manual S 133 20.7681 107 0 50
IV.TB03.DHZ. 2023-03-09T08:38:47.86 0.6 undecidable manual S 128 19.5693 108 0.12 49
IV.ATPC.HNN. 2023-03-09T08:38:47.75 0.6 undecidable manual S 100 19.3695 108 0.07 49
IV.PARC.HHZ. 2023-03-09T08:38:46.49 0.6 undecidable manual S 6 15.3735 113 0.12 49
IV.ATPI.EHZ. 2023-03-09T08:38:46.60 0.6 undecidable manual S 114 16.1727 112 -0.02 50
IV.CAFI.HNZ. 2023-03-09T08:38:46.32 0.1 undecidable manual P 225 28.6491 103 -0.16 95
IV.TB02.DHN. 2023-03-09T08:38:45.16 0.1 undecidable manual P 135 21.867 106 0.01 99
IV.TB01.DHZ. 2023-03-09T08:38:45.36 0.1 undecidable manual P 129 22.5552 106 0.07 98
IV.ATPI.EHZ. 2023-03-09T08:38:44.02 0.6 undecidable manual P 114 16.1727 112 -0.05 50
IV.ATVO.HHZ. 2023-03-09T08:38:44.86 1.0 undecidable manual P 133 20.7681 107 -0.09 24
IV.ATMC.EHN. 2023-03-09T08:38:44.19 0.6 undecidable manual S 197 7.3815 131 0.2 49
IV.TB03.DHZ. 2023-03-09T08:38:44.71 0.1 undecidable manual P 128 19.5693 108 -0.01 99
IV.ATPC.HNN. 2023-03-09T08:38:44.62 0.1 undecidable manual P 100 19.3695 108 -0.07 98
IV.PARC.HHZ. 2023-03-09T08:38:43.94 0.1 undecidable manual P 6 15.3735 113 0.01 100
IV.BADI.EHZ. 2023-03-09T08:38:42.67 0.6 undecidable manual S 94 1.998 163 -0.25 49
IV.ATMC.EHN. 2023-03-09T08:38:42.74 0.1 undecidable manual P 197 7.3815 131 0.19 98
IV.BADI.EHZ. 2023-03-09T08:38:41.90 0.6 undecidable manual P 94 1.998 163 -0.04 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHE. ML:0.9 0.00008258090500000001 0.1024 AML other m 2023-03-09T08:38:46.54
IV.PARC.HHN. ML:0.7 0.000052823505 0.1216 AML other m 2023-03-09T08:38:46.53
IV.ATPI.EHE. ML:0.3 0.000021204675000000002 0.2432 AML other m 2023-03-09T08:38:46.62
IV.ATPI.EHN. ML:0.3 0.000019904790999999998 1.9232 AML other m 2023-03-09T08:38:46.02
IV.ATVO.HHN. ML:0.7 0.00003550808 2.4832 AML other m 2023-03-09T08:38:50.26
IV.ATVO.HHE. ML:0.5 0.000024731085 0.2368 AML other m 2023-03-09T08:38:50.33
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