Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 09-03-2023 and time 16:53:19 (Italy) in region 6 km SE San Giustino (PG)

A magnitude ML 0.9 earthquake occured in region: 6 km SE San Giustino (PG), on

  • 09-03-2023 15:53:19 (UTC)
  • 09-03-2023 16:53:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5090, 12.2210 at 7 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.

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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
Monte Santa Maria Tiberina PG 9 1183 57681
Sansepolcro AR 9 15884 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 18 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)
68 Km SW of Rimini (147750 inhabitants)
70 Km S of Cesena (96758 inhabitants)
72 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)
91 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
Reviewed
Rev100 		ML 0.9 2023-03-09
15:53:19		 43.5088 12.2212 7 2023-03-09
15:58:55		 Sala Sismica INGV-Roma 115157191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-09 15:53:19 ± 0.1
Latitude 43.5088 ± 0.0027
Longitude 12.2212 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115157191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 36
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.01709
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 115157191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-09 15:58:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2023-03-09T15:53:29.74 0.6 undecidable manual S 226 28.6491 103 -0.17 46
IV.PIEI.HHZ. 2023-03-09T15:53:28.84 0.6 undecidable manual S 83 25.4523 105 0.01 48
IV.ATVO.HHZ. 2023-03-09T15:53:27.28 0.6 undecidable manual S 133 20.5683 108 0.08 48
IV.ATPC.HNE. 2023-03-09T15:53:26.99 0.6 undecidable manual S 99 19.2696 109 0.21 47
IV.ATPI.EHZ. 2023-03-09T15:53:25.69 0.6 undecidable manual S 114 15.9729 113 -0.02 49
IV.CAFI.HHZ. 2023-03-09T15:53:25.54 0.3 positive manual P 226 28.6491 103 -0.05 71
IV.PARC.HHZ. 2023-03-09T15:53:25.65 0.1 undecidable manual S 5 15.5733 114 0.06 97
IV.PIEI.HHZ. 2023-03-09T15:53:24.78 1.0 negative manual P 83 25.4523 105 -0.19 23
IV.ATVO.HHZ. 2023-03-09T15:53:24.08 0.3 positive manual P 133 20.5683 108 0.05 72
IV.ATMI.HHZ. 2023-03-09T15:53:23.96 0.6 undecidable manual P 169 19.7691 109 0.08 48
IV.ATMC.EHE. 2023-03-09T15:53:23.30 0.6 undecidable manual S 198 7.2927 133 0.16 48
IV.ATPC.HNE. 2023-03-09T15:53:23.80 0.6 undecidable manual P 99 19.2696 109 0.01 49
IV.PARC.HHZ. 2023-03-09T15:53:23.13 0.3 undecidable manual P 5 15.5733 114 0.03 73
IV.ATPI.EHZ. 2023-03-09T15:53:22.56 0.6 positive manual P 114 15.9729 113 -0.61 42
IV.BADI.EHZ. 2023-03-09T15:53:21.88 0.6 undecidable manual S 87 1.8981 165 -0.26 48
IV.BADI.EHZ. 2023-03-09T15:53:21.13 0.1 undecidable manual P 87 1.8981 165 0.02 100
IV.ATMC.EHE. 2023-03-09T15:53:21.88 0.3 undecidable manual P 198 7.2927 133 0.19 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHE. ML:1.2 0.00016033047999999998 0.1024 AML other m 2023-03-09T15:53:25.74
IV.PARC.HHN. ML:1.0 0.00010705042500000001 0.1536 AML other m 2023-03-09T15:53:25.99
IV.CAFI.HHE. ML:0.9 0.0000402 0.52 AML other m 2023-03-09T15:53:31.41
IV.CAFI.HHN. ML:0.8 0.000030350000000000002 1.58 AML other m 2023-03-09T15:53:35.01
IV.ATPI.HNE. ML:1.0 0.00009137698999999999 0.5376 AML other m 2023-03-09T15:53:30.92
IV.ATPI.HNN. ML:1.0 0.00011078120499999999 0.4864 AML other m 2023-03-09T15:53:27.40
IV.ATPI.EHE. ML:0.6 0.000044199420000000004 0.2432 AML other m 2023-03-09T15:53:25.98
IV.ATPI.EHN. ML:0.5 0.000034285655 0.192 AML other m 2023-03-09T15:53:27.50
IV.ATMI.HHE. ML:1.0 0.000088033255 0.2432 AML other m 2023-03-09T15:53:28.23
IV.ATMI.HHN. ML:1.0 0.000079091275 0.256 AML other m 2023-03-09T15:53:28.23
IV.ATVO.HHE. ML:0.8 0.00005150206 0.4096 AML other m 2023-03-09T15:53:29.54
IV.ATVO.HHN. ML:0.8 0.000047688615000000004 0.1664 AML other m 2023-03-09T15:53:27.88
IV.ATVO.HNE. ML:1.2 0.000118385585 0.4992 AML other m 2023-03-09T15:53:39.82
IV.ATVO.HNN. ML:1.2 0.000125885045 0.6528 AML other m 2023-03-09T15:53:31.03
IV.CAFI.HNE. ML:0.9 0.000042793885 0.704 AML other m 2023-03-09T15:53:39.84
IV.CAFI.HNN. ML:0.8 0.0000348618495 0.7808 AML other m 2023-03-09T15:53:28.02
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