Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 20-06-2020 and time 16:21:24 (UTC) in region 7 km SW Apecchio (PU)

A magnitude ML 0.7 earthquake occured in region: 7 km SW Apecchio (PU), on

  • 20-06-2020 16:21:24 (UTC)
  • 20-06-2020 18:21:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5260, 12.3490 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
Apecchio PU 7 1882 1882
Città di Castello PG 12 39913 41795
Pietralunga PG 12 2111 43906
Mercatello sul Metauro PU 14 1378 45284
San Giustino PG 14 11297 56581
Piobbico PU 15 2029 58610
Borgo Pace PU 15 606 59216
Sant'Angelo in Vado PU 16 4133 63349
Sansepolcro AR 17 15884 79233
Monte Santa Maria Tiberina PG 18 1183 80416
Montone PG 18 1680 82096
Citerna PG 19 3531 85627
Monterchi AR 20 1757 87384

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Arezzo (99543 inhabitants)
47 Km N of Perugia (166134 inhabitants)
62 Km S of Rimini (147750 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
65 Km SW of Fano (60888 inhabitants)
69 Km S of Cesena (96758 inhabitants)
70 Km NW of Foligno (57155 inhabitants)
81 Km SE of Forlì (117913 inhabitants)
85 Km E of Siena (53903 inhabitants)
92 Km E of Firenze (382808 inhabitants)
92 Km SE of Faenza (58541 inhabitants)
95 Km W of Ancona (100861 inhabitants)
97 Km E of Scandicci (50609 inhabitants)
100 Km S of Ravenna (159116 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 0.7 2020-06-20
16:21:24		 43.5258 12.3493 8 2020-06-20
16:27:06		 Sala Sismica INGV-Roma 80351201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-20 16:21:24 ± 0.13
Latitude 43.5258 ± 0.0036
Longitude 12.3493 ± 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 80351201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 18
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 179
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.21494
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 80351201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-20 16:27:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATLO.EHZ. 2020-06-20T16:21:32.55 0.6 undecidable manual S 169 23.8539 108 -0.29 46
IV.NARO.HHZ. 2020-06-20T16:21:31.44 0.3 undecidable manual S 63 20.868 110 -0.42 67
IV.PARC.HHZ. 2020-06-20T16:21:30.73 0.6 undecidable manual S 327 16.2726 115 0.34 46
IV.ATVO.HHZ. 2020-06-20T16:21:30.55 0.6 undecidable manual S 164 16.5723 115 0.06 49
IV.PIEI.HHZ. 2020-06-20T16:21:30.12 0.6 undecidable manual S 86 14.9739 117 0.13 48
IV.ATMI.HHZ. 2020-06-20T16:21:29.28 0.1 undecidable manual P 197 22.2555 109 0.42 90
IV.TB03.DHZ. 2020-06-20T16:21:29.95 0.6 undecidable manual S 160 14.6742 118 0.06 49
IV.ATMC.EHZ. 2020-06-20T16:21:29.84 0.6 undecidable manual S 235 15.3735 117 -0.26 47
IV.ATLO.EHZ. 2020-06-20T16:21:29.03 0.1 undecidable manual P 169 23.8539 108 -0.14 95
IV.ATBU.EHZ. 2020-06-20T16:21:28.26 0.1 undecidable manual P 109 16.9719 114 0.38 91
IV.ATPC.HHZ. 2020-06-20T16:21:28.79 0.6 undecidable manual S 120 9.9789 127 0.26 47
IV.TB02.DHZ. 2020-06-20T16:21:28.14 0.1 undecidable manual P 164 17.871 113 0.09 97
IV.BADI.EHZ. 2020-06-20T16:21:28.16 0.6 undecidable manual S 258 8.5803 132 0 50
IV.ATPI.HNZ. 2020-06-20T16:21:28.23 0.6 undecidable manual S 153 9.3795 129 -0.12 49
IV.NARO.HHZ. 2020-06-20T16:21:28.31 0.6 negative manual P 63 20.868 110 -0.29 46
IV.PIEI.HHZ. 2020-06-20T16:21:27.52 0.6 positive manual P 86 14.9739 117 0 49
IV.PARC.HHZ. 2020-06-20T16:21:27.68 0.6 positive manual P 327 16.2726 115 -0.08 49
IV.TB03.DHZ. 2020-06-20T16:21:27.39 0.1 undecidable manual P 160 14.6742 118 -0.08 98
IV.ATVO.HHZ. 2020-06-20T16:21:27.71 0.1 positive manual P 164 16.5723 115 -0.1 97
IV.ATMC.EHZ. 2020-06-20T16:21:27.44 0.1 undecidable manual P 235 15.3735 117 -0.15 96
IV.TB01.DHZ. 2020-06-20T16:21:27.98 0.1 undecidable manual P 156 17.4714 114 0.01 98
IV.ATPI.HNZ. 2020-06-20T16:21:26.46 0.1 undecidable manual P 153 9.3795 129 -0.11 98
IV.ATPC.HHZ. 2020-06-20T16:21:26.79 0.1 undecidable manual P 120 9.9789 127 0.11 98
IV.BADI.EHZ. 2020-06-20T16:21:26.47 0.1 positive manual P 258 8.5803 132 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHN. ML:1.3 0.00029049999999999996 0.12 AML other m 2020-06-20T16:21:28.54
IV.BADI.EHE. ML:1.2 0.0002475 0.14 AML other m 2020-06-20T16:21:28.67
IV.PIEI.HHN. ML:0.5 0.00002765 0.38 AML other m 2020-06-20T16:21:30.48
IV.PIEI.HHE. ML:0.7 0.0000511 0.34 AML other m 2020-06-20T16:21:30.48
IV.ATVO.HHE. ML:0.8 0.00006615 1.34 AML other m 2020-06-20T16:21:31.77
IV.PARC.HHE. ML:0.8 0.000053450000000000005 0.88 AML other m 2020-06-20T16:21:31.54
IV.ATVO.HHN. ML:0.6 0.0000387 0.62 AML other m 2020-06-20T16:21:31.92
IV.NARO.HHN. ML:0.6 0.00003225 0.18 AML other m 2020-06-20T16:21:31.64
IV.NARO.HHE. ML:0.4 0.000022400000000000002 0.16 AML other m 2020-06-20T16:21:31.58
IV.PARC.HHN. ML:0.7 0.0000486 0.28 AML other m 2020-06-20T16:21:31.73
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