Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 16-06-2020 and time 13:23:40 (Italy) in region 4 km E Apecchio (PU)

A magnitude ML 0.4 earthquake occured in region: 4 km E Apecchio (PU), on

  • 16-06-2020 11:23:40 (UTC)
  • 16-06-2020 13:23:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5650, 12.4690 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 4 1882 1882
Piobbico PU 4 2029 3911
Sant'Angelo in Vado PU 12 4133 8044
Urbania PU 13 7099 15143
Pietralunga PG 14 2111 17254
Mercatello sul Metauro PU 14 1378 18632
Cagli PU 15 8731 27363
Peglio PU 15 696 28059
Cantiano PU 16 2245 30304
Acqualagna PU 17 4393 34697
Borgo Pace PU 18 606 35303
Piandimeleto PU 18 2167 37470
Belforte all'Isauro PU 19 769 38239
Lunano PU 19 1527 39766
Fermignano PU 19 8596 48362

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km E of Arezzo (99543 inhabitants)
51 Km N of Perugia (166134 inhabitants)
53 Km SW of Pesaro (94582 inhabitants)
54 Km SW of Fano (60888 inhabitants)
56 Km S of Rimini (147750 inhabitants)
66 Km S of Cesena (96758 inhabitants)
70 Km N of Foligno (57155 inhabitants)
81 Km SE of Forlì (117913 inhabitants)
85 Km W of Ancona (100861 inhabitants)
93 Km SE of Faenza (58541 inhabitants)
96 Km E of Siena (53903 inhabitants)
97 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 0.4 2020-06-16
11:23:40		 43.5647 12.4693 8 2020-06-16
11:30:08		 Sala Sismica INGV-Roma 80231341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-16 11:23:40 ± 0.11
Latitude 43.5647 ± 0.0036
Longitude 12.4693 ± 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 80231341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 394
Semi-minor axis of confidence ellipse (meter) 102
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
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) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.21943
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:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 80231341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-16 11:30:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2020-06-16T11:23:49.11 0.3 undecidable manual S 73 24.3534 107 0.22 70
IV.FRON.EHZ. 2020-06-16T11:23:47.86 0.3 undecidable manual S 104 21.2676 110 0 73
IV.BADI.EHZ. 2020-06-16T11:23:47.02 0.3 undecidable manual S 251 19.0698 112 -0.13 71
IV.ATVO.HHZ. 2020-06-16T11:23:47.58 0.3 undecidable manual S 194 20.868 110 -0.15 71
IV.MPAG.EHZ. 2020-06-16T11:23:45.29 1.0 undecidable manual P 73 24.3534 107 0.15 24
IV.BADI.EHZ. 2020-06-16T11:23:44.09 0.6 negative manual P 251 19.0698 112 -0.05 48
IV.ATVO.HHZ. 2020-06-16T11:23:44.33 1.0 negative manual P 194 20.868 110 -0.14 24
IV.FRON.EHZ. 2020-06-16T11:23:44.45 0.6 undecidable manual P 104 21.2676 110 -0.1 48
IV.ATPC.HNZ. 2020-06-16T11:23:44.54 0.3 undecidable manual S 186 9.3795 129 0.33 70
IV.NARO.HHZ. 2020-06-16T11:23:44.24 0.1 undecidable manual S 60 10.2786 126 -0.22 95
IV.APEC.HNZ. 2020-06-16T11:23:43.04 0.1 undecidable manual S 260 3.996 152 0.04 100
IV.ATPI.EHZ. 2020-06-16T11:23:43.13 0.6 positive manual P 203 13.7751 119 -0.04 49
IV.PIEI.HHZ. 2020-06-16T11:23:43.28 0.1 undecidable manual S 121 6.1938 141 -0.14 97
IV.ATPC.HNZ. 2020-06-16T11:23:42.43 0.1 undecidable manual P 186 9.3795 129 -0.01 99
IV.NARO.HHZ. 2020-06-16T11:23:42.74 0.6 undecidable manual P 60 10.2786 126 0.15 48
IV.PIEI.HHZ. 2020-06-16T11:23:41.99 0.1 undecidable manual P 121 6.1938 141 0 100
IV.APEC.HNZ. 2020-06-16T11:23:41.89 0.1 undecidable manual P 260 3.996 152 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHN. ML:0.7 0.00007175 0.06 AML other m 2020-06-16T11:23:44.81
IV.NARO.HHE. ML:0.5 0.00004265 0.48 AML other m 2020-06-16T11:23:44.92
IV.ATPI.EHE. ML:0.2 0.0000188 0.36 AML other m 2020-06-16T11:23:48.69
IV.ATPI.EHN. ML:0.2 0.000018599999999999998 0.42 AML other m 2020-06-16T11:23:48.46
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