Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 09-03-2023 and time 20:05:15 (UTC) in region 5 km E Umbertide (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km E Umbertide (PG), on

  • 09-03-2023 20:05:15 (UTC)
  • 09-03-2023 21:05:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3020, 12.3930 at 7 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
Umbertide PG 5 16681 16681
Montone PG 9 1680 18361
Pietralunga PG 16 2111 20472
Gubbio PG 16 32216 52688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
46 Km NW of Foligno (57155 inhabitants)
79 Km SW of Fano (60888 inhabitants)
80 Km SW of Pesaro (94582 inhabitants)
85 Km N of Terni (111501 inhabitants)
86 Km S of Rimini (147750 inhabitants)
86 Km E of Siena (53903 inhabitants)
94 Km S of Cesena (96758 inhabitants)
98 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 0.9 2023-03-09
20:05:15		 43.3018 12.3928 7 2024-03-01
17:18:18		 Bollettino Sismico Italiano INGV 123692871
Reviewed
Rev100 		ML 0.9 2023-03-09
20:05:15		 43.3032 12.3975 6 2023-03-09
20:14:02		 Sala Sismica INGV-Roma 115169081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-09 20:05:15 ± 0.1
Latitude 43.3018 ± 0.0027
Longitude 12.3928 ± 0.0037
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 123692871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 33
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
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) 131
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 34
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) 0.31117
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 115169081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-09 20:14:02

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 123692871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-02 15:37:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2023-03-09T20:05:44.33 3.0 undecidable manual S 0.49 0
IV.BARO.EHZ. 2023-03-09T20:05:38.21 3.0 undecidable manual P 1.3 0
IV.MMO1.EHZ. 2023-03-09T20:05:31.07 3.0 undecidable manual P -0.4 0
IV.CAFI.HHZ. 2023-03-09T20:05:27.00 0.6 undecidable manual S 275 34.5432 101 -0.81 38
IV.BADI.EHZ. 2023-03-09T20:05:25.03 0.6 undecidable manual S 333 25.9518 105 0.12 47
IV.PIEI.HHZ. 2023-03-09T20:05:25.61 0.6 undecidable manual S 24 28.3494 104 -0.1 47
IV.ATCC.EHZ. 2023-03-09T20:05:24.16 0.6 undecidable manual S 123 23.754 106 -0.02 49
IV.ATBU.EHZ. 2023-03-09T20:05:24.14 0.6 undecidable manual S 33 22.9548 107 0.22 47
IV.ATPC.HNZ. 2023-03-09T20:05:23.39 0.6 undecidable manual S 15 20.4684 109 0.3 46
IV.CAFI.HHZ. 2023-03-09T20:05:22.47 0.3 undecidable manual P 275 34.5432 101 -0.17 69
IV.PIEI.HHZ. 2023-03-09T20:05:21.30 0.6 undecidable manual P 24 28.3494 104 -0.13 47
IV.ATPI.EHZ. 2023-03-09T20:05:21.90 0.6 undecidable manual S 3 16.5723 113 0.1 48
IV.MURB.HHZ. 2023-03-09T20:05:20.44 0.6 undecidable manual S 112 11.4774 121 0.2 48
IV.ATBU.EHZ. 2023-03-09T20:05:20.34 0.1 undecidable manual P 33 22.9548 107 -0.05 97
IV.TSM2.DHN.01 2023-03-09T20:05:20.51 0.6 undecidable manual S 37 13.0758 118 -0.21 48
IV.ATCC.EHZ. 2023-03-09T20:05:20.46 0.3 undecidable manual P 123 23.754 106 -0.08 72
IV.ATMI.HHZ. 2023-03-09T20:05:20.09 0.6 undecidable manual S 290 10.6782 123 0.09 49
IV.BADI.EHZ. 2023-03-09T20:05:20.92 0.3 undecidable manual P 333 25.9518 105 -0.05 72
IV.TB03.DHZ.25 2023-03-09T20:05:20.05 0.6 undecidable manual S 7 11.1777 122 -0.08 49
IV.TB02.DHE.01 2023-03-09T20:05:19.09 0.6 undecidable manual S 10 7.6812 132 -0.09 49
IV.ATPI.EHZ. 2023-03-09T20:05:19.15 0.1 undecidable manual P 3 16.5723 113 -0.02 98
IV.ATVO.HHZ. 2023-03-09T20:05:19.53 0.6 undecidable manual S 7 8.9799 128 0.01 50
IV.ATPC.HNZ. 2023-03-09T20:05:19.91 0.1 undecidable manual P 15 20.4684 109 -0.01 98
IV.TB01.DHE.01 2023-03-09T20:05:19.70 0.6 undecidable manual S 21 9.4794 126 0.04 50
IV.ATVA.EHZ. 2023-03-09T20:05:19.21 0.6 undecidable manual S 254 9.0798 127 -0.33 47
IV.TB03.DHZ.25 2023-03-09T20:05:18.13 0.3 undecidable manual P 7 11.1777 122 -0.07 74
IV.MURB.HHZ. 2023-03-09T20:05:18.33 0.3 undecidable manual P 112 11.4774 121 0.06 74
IT.UMBT.HGZ. 2023-03-09T20:05:18.68 0.6 undecidable manual S 274 3.996 150 0.32 47
IV.TSM2.DHN.01 2023-03-09T20:05:18.49 0.3 undecidable manual P 37 13.0758 118 -0.05 74
IV.ATMI.HHZ. 2023-03-09T20:05:18.76 0.3 undecidable manual P 290 10.6782 123 0.62 64
IV.ATVA.EHZ. 2023-03-09T20:05:17.99 0.1 undecidable manual P 254 9.0798 127 0.13 97
IV.TB02.DHE.01 2023-03-09T20:05:17.67 0.1 undecidable manual P 10 7.6812 132 0.01 100
IV.ATVO.HHZ. 2023-03-09T20:05:17.87 0.1 positive manual P 7 8.9799 128 0.01 100
IV.ATLO.HNZ. 2023-03-09T20:05:17.51 0.6 undecidable manual S 38 1.8981 165 -0.57 44
IT.UMBT.HGZ. 2023-03-09T20:05:17.67 0.3 undecidable manual P 274 3.996 150 0.49 68
IV.TB01.DHE.01 2023-03-09T20:05:17.93 0.1 undecidable manual P 21 9.4794 126 -0.01 100
IV.ATLO.HNZ. 2023-03-09T20:05:16.85 0.1 undecidable manual P 38 1.8981 165 -0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.7 0.000077 1.28 AML other m 2023-03-09T20:05:19.74
IV.ATVO.HHE. ML:0.7 0.00008235000000000001 0.42 AML other m 2023-03-09T20:05:20.07
IV.MURB.HHE. ML:1.2 0.000237 0.14 AML other m 2023-03-09T20:05:20.75
IV.MURB.HHN. ML:1.1 0.0001735 0.84 AML other m 2023-03-09T20:05:23.05
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