Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 09-08-2020 and time 03:18:47 (UTC) in region 6 km NW Apecchio (PU)

A magnitude ML 1.2 earthquake occured in region: 6 km NW Apecchio (PU), on

  • 09-08-2020 03:18:47 (UTC)
  • 09-08-2020 05:18:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6010, 12.3730 at 10 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 6 1882 1882
Mercatello sul Metauro PU 6 1378 3260
Sant'Angelo in Vado PU 8 4133 7393
Borgo Pace PU 9 606 7999
Piobbico PU 11 2029 10028
Belforte all'Isauro PU 13 769 10797
Sestino AR 14 1355 12152
Piandimeleto PU 14 2167 14319
Urbania PU 14 7099 21418
Peglio PU 15 696 22114
Lunano PU 16 1527 23641
San Giustino PG 17 11297 34938
Frontino PU 18 293 35231
Pietralunga PG 18 2111 37342
Sansepolcro AR 19 15884 53226
Badia Tedalda AR 19 1087 54313
Città di Castello PG 19 39913 94226

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Arezzo (99543 inhabitants)
54 Km SW of Rimini (147750 inhabitants)
55 Km N of Perugia (166134 inhabitants)
56 Km SW of Pesaro (94582 inhabitants)
59 Km W of Fano (60888 inhabitants)
61 Km S of Cesena (96758 inhabitants)
74 Km SE of Forlì (117913 inhabitants)
77 Km NW of Foligno (57155 inhabitants)
86 Km SE of Faenza (58541 inhabitants)
90 Km E of Siena (53903 inhabitants)
92 Km E of Firenze (382808 inhabitants)
92 Km S of Ravenna (159116 inhabitants)
92 Km W of Ancona (100861 inhabitants)
97 Km E of Scandicci (50609 inhabitants)
99 Km SE of Imola (69797 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 1.2 2020-08-09
03:18:47		 43.6008 12.3733 10 2020-08-09
04:51:40		 Sala Sismica INGV-Roma 81798231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-09 03:18:47 ± 0.06
Latitude 43.6008 ± 0.0036
Longitude 12.3733 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81798231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 315
Semi-minor axis of confidence ellipse (meter) 214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45865
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 81798231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-09 04:51:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2020-08-09T03:19:01.82 3.0 positive manual P -0.15 0
IV.FRON.EHZ. 2020-08-09T03:18:58.13 0.3 undecidable manual S 108 29.748 50 -0.11 71
IV.ATMI.HHZ. 2020-08-09T03:18:58.31 0.6 undecidable manual S 196 30.747 50 -0.19 47
IV.ATCC.EHZ. 2020-08-09T03:18:57.31 0.3 undecidable manual P 155 50.9157 50 0.31 66
IV.CAFI.HHZ. 2020-08-09T03:18:56.04 0.1 undecidable manual P 228 44.5221 50 0.02 94
IV.ATBU.HNE. 2020-08-09T03:18:56.15 0.6 undecidable manual S 135 19.7691 117 0.84 39
IV.ARVD.HHZ. 2020-08-09T03:18:56.44 0.3 undecidable manual P 104 47.1195 50 0.03 70
IV.ATVO.HHZ. 2020-08-09T03:18:56.77 0.3 undecidable manual S 174 24.3534 112 0 73
IV.CDCA.HNZ. 2020-08-09T03:18:55.61 0.3 undecidable manual S 215 19.3695 117 0.42 68
IV.SSP9.EHZ. 2020-08-09T03:18:55.55 0.6 undecidable manual S 261 19.6692 117 0.27 47
IV.NARO.HHZ. 2020-08-09T03:18:54.04 0.3 undecidable manual S 86 16.6722 121 -0.34 69
IV.ATPI.EHZ. 2020-08-09T03:18:54.48 0.3 undecidable manual S 172 16.7721 121 0.07 73
IV.ATFO.HHZ. 2020-08-09T03:18:54.07 0.3 undecidable manual P 148 30.4473 50 0.22 70
IV.ATPC.HHE. 2020-08-09T03:18:54.13 0.3 undecidable manual S 153 14.874 124 0.27 71
IV.PE3.EHZ. 2020-08-09T03:18:54.14 0.3 undecidable manual S 43 14.4744 125 0.41 69
IV.ATMI.HHZ. 2020-08-09T03:18:53.84 0.1 undecidable manual P 196 30.747 50 -0.06 96
IV.PIEI.HHZ. 2020-08-09T03:18:53.38 0.3 undecidable manual S 119 14.874 124 -0.46 68
IV.FRON.EHZ. 2020-08-09T03:18:53.46 0.1 undecidable manual P 108 29.748 50 -0.29 91
IV.BADI.EHZ. 2020-08-09T03:18:53.57 0.3 undecidable manual S 226 14.4744 125 -0.16 72
IV.CPGN.EHZ. 2020-08-09T03:18:53.16 0.3 undecidable manual P 349 22.6551 114 0.59 64
IV.ATBU.HNE. 2020-08-09T03:18:52.33 0.1 undecidable manual P 135 19.7691 117 0.28 93
IV.ATVO.HHZ. 2020-08-09T03:18:52.80 0.1 positive manual P 174 24.3534 112 -0.1 96
IV.ATMC.EHE. 2020-08-09T03:18:52.34 0.1 undecidable manual P 220 22.4553 114 -0.19 94
IV.CDCA.HNZ. 2020-08-09T03:18:52.02 0.1 undecidable manual P 215 19.3695 117 0.03 98
IV.PARC.HHN. 2020-08-09T03:18:52.78 0.1 undecidable manual S 296 12.0768 130 -0.28 94
IV.ATPC.HHE. 2020-08-09T03:18:51.26 0.1 undecidable manual P 153 14.874 124 0.04 99
IV.BADI.EHZ. 2020-08-09T03:18:51.14 0.1 positive manual P 226 14.4744 125 0 99
IV.SSP9.EHZ. 2020-08-09T03:18:51.87 0.1 undecidable manual P 261 19.6692 117 -0.17 95
IV.APEC.HHZ. 2020-08-09T03:18:51.49 0.3 undecidable manual S 141 5.994 149 -0.19 73
IV.PE3.EHZ. 2020-08-09T03:18:51.31 0.1 positive manual P 43 14.4744 125 0.17 96
IV.NARO.HHZ. 2020-08-09T03:18:51.33 0.1 positive manual P 86 16.6722 121 -0.19 96
IV.ATPI.EHZ. 2020-08-09T03:18:51.55 0.1 undecidable manual P 172 16.7721 121 0.01 99
IV.PARC.HHN. 2020-08-09T03:18:50.66 0.1 undecidable manual P 296 12.0768 130 -0.1 98
IV.PIEI.HHZ. 2020-08-09T03:18:50.98 0.1 positive manual P 119 14.874 124 -0.23 95
IV.APEC.HHZ. 2020-08-09T03:18:49.91 0.1 undecidable manual P 141 5.994 149 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APEC.HHE. ML:1.6 0.0006725 0.32 AML other m 2020-08-09T03:18:51.58
IV.APEC.HHN. ML:1.6 0.000629 0.2 AML other m 2020-08-09T03:18:53.20
IV.BADI.EHE. ML:1.6 0.00039 0.14 AML other m 2020-08-09T03:18:54.02
IV.BADI.EHN. ML:1.5 0.00032999999999999994 0.2 AML other m 2020-08-09T03:18:54.15
IV.PIEI.HHE. ML:1.5 0.0002895 0.14 AML other m 2020-08-09T03:18:54.40
IV.NARO.HHE. ML:1.2 0.0001315 1.02 AML other m 2020-08-09T03:18:54.94
IV.PE3.EHE. ML:1.9 0.0007865 1.54 AML other m 2020-08-09T03:18:54.12
IV.PIEI.HHN. ML:1.2 0.0001495 0.2 AML other m 2020-08-09T03:18:55.01
IV.NARO.HHN. ML:1.4 0.000201 0.26 AML other m 2020-08-09T03:18:55.05
IV.PE3.EHN. ML:1.9 0.0008374999999999999 0.78 AML other m 2020-08-09T03:18:55.05
IV.ATVO.HHN. ML:1.2 0.0001041 0.14 AML other m 2020-08-09T03:18:57.27
IV.ATPI.EHN. ML:1.0 0.0000871 0.66 AML other m 2020-08-09T03:18:57.73
IV.ATVO.HHE. ML:1.3 0.00012114999999999999 0.12 AML other m 2020-08-09T03:18:57.72
IV.ATMI.HHN. ML:1.1 0.0000639 0.68 AML other m 2020-08-09T03:18:58.64
IV.SSP9.EHN. ML:1.0 0.00007215 0.74 AML other m 2020-08-09T03:18:59.53
IV.ATFO.HHN. ML:1.0 0.000042550000000000004 0.62 AML other m 2020-08-09T03:18:59.04
IV.ATFO.HHE. ML:1.1 0.0000668 0.18 AML other m 2020-08-09T03:18:59.41
IV.ATMI.HHE. ML:1.1 0.0000552 0.52 AML other m 2020-08-09T03:18:59.75
IV.FRON.EHE. ML:0.9 0.00003895 0.16 AML other m 2020-08-09T03:18:59.67
IV.FRON.EHN. ML:1.1 0.0000673 1 AML other m 2020-08-09T03:18:59.11
IV.SSP9.EHE. ML:0.8 0.000048731000000000005 0.54 AML other m 2020-08-09T03:18:59.88
IV.ATPI.EHE. ML:1.0 0.00009545 1.66 AML other m 2020-08-09T03:18:59.96
IV.CAFI.HHE. ML:0.8 0.00002065 0.16 AML other m 2020-08-09T03:19:03.50
IV.CAFI.HHN. ML:0.9 0.000024750000000000002 0.12 AML other m 2020-08-09T03:19:03.64
IV.ARVD.HHE. ML:1.0 0.000024449999999999998 0.24 AML other m 2020-08-09T03:19:04.39
IV.ARVD.HHN. ML:0.8 0.0000185 0.92 AML other m 2020-08-09T03:19:05.05
IV.ATCC.EHE. ML:1.1 0.0000348 0.56 AML other m 2020-08-09T03:19:06.29
IV.ATCC.EHN. ML:1.2 0.0000406 0.5 AML other m 2020-08-09T03:19:11.00
IV.MGAB.HHE. ML:1.2 0.00002135 0.56 AML other m 2020-08-09T03:19:14.90
IV.MGAB.HHN. ML:1.2 0.000025450000000000002 1.32 AML other m 2020-08-09T03:19:16.69
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