Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 06-04-2023 and time 14:24:37 (Italy) in region 6 km E Umbertide (PG)

A magnitude ML 0.8 earthquake occured in region: 6 km E Umbertide (PG), on

  • 06-04-2023 12:24:37 (UTC)
  • 06-04-2023 14:24:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3010, 12.4040 at 8 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
Umbertide PG 6 16681 16681
Montone PG 9 1680 18361
Gubbio PG 15 32216 50577
Pietralunga PG 16 2111 52688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of Perugia (166134 inhabitants)
45 Km NW of Foligno (57155 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
78 Km SW of Fano (60888 inhabitants)
79 Km SW of Pesaro (94582 inhabitants)
85 Km N of Terni (111501 inhabitants)
86 Km S of Rimini (147750 inhabitants)
87 Km E of Siena (53903 inhabitants)
94 Km S of Cesena (96758 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
Reviewed
Rev100 		ML 0.8 2023-04-06
12:24:37		 43.3008 12.4038 8 2023-04-06
12:34:33		 Sala Sismica INGV-Roma 116115341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-06 12:24:37 ± 0.08
Latitude 43.3008 ± 0.0027
Longitude 12.4038 ± 0.0037
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116115341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 122
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.01439
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 116115341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-06 12:34:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2023-04-06T12:24:49.43 0.6 undecidable manual S 275 35.4423 50 -0.66 41
IV.PIEI.HHZ. 2023-04-06T12:24:47.59 0.6 undecidable manual S 22 28.1496 106 -0.09 48
IV.ATSC.EHZ. 2023-04-06T12:24:46.57 0.6 undecidable manual S 59 26.5512 107 -0.6 42
IV.ATBU.EHZ. 2023-04-06T12:24:46.21 0.6 undecidable manual S 31 22.6551 110 0.34 46
IV.ATPC.HHZ. 2023-04-06T12:24:45.28 0.3 undecidable manual S 12 20.3685 112 0.13 72
IV.CAFI.HHZ. 2023-04-06T12:24:44.76 0.3 undecidable manual P 275 35.4423 50 -0.02 72
IV.ATPI.EHZ. 2023-04-06T12:24:44.04 0.1 undecidable manual S 360 16.5723 116 0.09 98
IV.PIEI.HHZ. 2023-04-06T12:24:43.26 0.6 undecidable manual P 22 28.1496 106 -0.13 48
IV.ATBU.EHZ. 2023-04-06T12:24:42.50 0.1 undecidable manual P 31 22.6551 110 0.15 96
IV.TSM5.DHZ.01 2023-04-06T12:24:42.89 0.3 undecidable manual P 39 25.4523 108 0 74
IV.TB03.DHZ. 2023-04-06T12:24:42.22 0.6 undecidable manual S 3 11.1777 126 -0.11 49
IV.MURB.HHZ. 2023-04-06T12:24:42.29 0.6 undecidable manual S 113 10.5783 128 0.11 49
IV.ATCC.EHZ. 2023-04-06T12:24:42.43 1.0 negative manual P 124 22.9548 110 0.01 25
IV.TSM2.DHZ. 2023-04-06T12:24:42.53 0.6 undecidable manual S 33 12.6762 123 -0.22 48
IV.TSM3.DHZ. 2023-04-06T12:24:42.10 0.6 undecidable manual S 337 9.879 130 0.12 49
IV.ATSC.EHZ. 2023-04-06T12:24:42.96 0.3 undecidable manual P 59 26.5512 107 -0.14 71
IV.ATMI.HHZ. 2023-04-06T12:24:41.08 1.0 positive manual P 289 11.5773 125 0.71 21
IV.ATVO.HHZ. 2023-04-06T12:24:41.42 0.6 undecidable manual S 1 8.9799 132 -0.33 47
IV.ATPI.EHZ. 2023-04-06T12:24:41.45 1.0 undecidable manual P 360 16.5723 116 0.21 24
IV.ATVA.EHZ. 2023-04-06T12:24:41.85 0.6 undecidable manual S 256 9.879 130 -0.13 49
IV.TSM1.DHZ.01 2023-04-06T12:24:41.22 0.3 undecidable manual P 72 16.3725 116 0.02 74
IV.TB01.DHZ. 2023-04-06T12:24:41.66 0.6 undecidable manual S 16 9.2796 131 -0.17 49
IV.ATPC.HHZ. 2023-04-06T12:24:41.97 0.3 undecidable manual P 12 20.3685 112 0.04 74
IV.ATFO.HHZ. 2023-04-06T12:24:41.18 0.6 negative manual P 62 15.3735 118 0.17 48
IV.TSM3.DHZ. 2023-04-06T12:24:40.24 0.1 undecidable manual P 337 9.879 130 0.14 98
IV.ATVO.HHZ. 2023-04-06T12:24:40.07 0.1 undecidable manual P 1 8.9799 132 0.1 99
IV.TB03.DHZ. 2023-04-06T12:24:40.33 0.1 undecidable manual P 3 11.1777 126 0.03 100
IV.ATVA.EHZ. 2023-04-06T12:24:40.29 0.1 undecidable manual P 256 9.879 130 0.19 97
IV.MURB.HHZ. 2023-04-06T12:24:40.34 0.1 positive manual P 113 10.5783 128 0.13 98
IV.TB01.DHZ. 2023-04-06T12:24:40.08 0.1 undecidable manual P 16 9.2796 131 0.07 100
IV.TSM2.DHZ. 2023-04-06T12:24:40.59 0.1 undecidable manual P 33 12.6762 123 0.04 99
IV.TB02.DHZ. 2023-04-06T12:24:39.86 0.1 undecidable manual P 3 7.6812 137 0.08 100
IV.ATLO.EHZ. 2023-04-06T12:24:39.00 0.1 undecidable manual P 10 1.5984 169 -0.2 98
IV.ATLO.EHZ. 2023-04-06T12:24:39.81 0.6 undecidable manual S 10 1.5984 169 -0.61 44
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.8 0.00010085 1.84 AML other m 2023-04-06T12:24:41.92
IV.ATVO.HHE. ML:0.6 0.000064405825 0.224 AML other m 2023-04-06T12:24:42.22
IV.MURB.HHE. ML:1.5 0.00039749999999999996 0.18 AML other m 2023-04-06T12:24:42.64
IV.MURB.HHN. ML:1.3 0.00028762205000000004 0.1408 AML other m 2023-04-06T12:24:42.91
IV.ATPI.EHE. ML:0.7 0.000048161335 0.1024 AML other m 2023-04-06T12:24:44.44
IV.ATPI.EHN. ML:0.6 0.00003316142499999999 0.224 AML other m 2023-04-06T12:24:44.44
IV.ATMI.HHE. ML:0.9 0.00011119152 0.3648 AML other m 2023-04-06T12:24:43.34
IV.ATMI.HHN. ML:0.7 0.00006801763 0.8448 AML other m 2023-04-06T12:24:49.33
IV.PIEI.HHE. ML:0.9 0.00003957132 0.1408 AML other m 2023-04-06T12:24:48.34
IV.PIEI.HHN. ML:0.6 0.00002132319 0.1408 AML other m 2023-04-06T12:24:48.05
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