Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 20-08-2018 and time 06:50:25 (Italy) in region 5 km W Sigillo (PG)

A magnitude ML 2.2 earthquake occured in region: 5 km W Sigillo (PG), on

  • 20-08-2018 04:50:25 (UTC)
  • 20-08-2018 06:50:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3190, 12.6850 at 9 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
Sigillo PG 5 2404 2404
Costacciaro PG 5 1216 3620
Fossato di Vico PG 7 2840 6460
Gubbio PG 9 32216 38676
Scheggia e Pascelupo PG 10 1393 40069
Gualdo Tadino PG 13 15208 55277
Fabriano AN 18 31480 86757
Cantiano PU 18 2245 89002
Valfabbrica PG 19 3389 92391
Sassoferrato AN 19 7285 99676

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Perugia (166134 inhabitants)
40 Km N of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
68 Km S of Pesaro (94582 inhabitants)
75 Km W of Ancona (100861 inhabitants)
83 Km S of Rimini (147750 inhabitants)
84 Km N of Terni (111501 inhabitants)
98 Km SE of Cesena (96758 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 2.2 2018-08-20
04:50:25		 43.3192 12.6853 9 2019-04-24
14:51:18		 Bollettino Sismico Italiano INGV 67215701
Reviewed
Rev100 		ML 2.2 2018-08-20
04:50:25		 43.3217 12.6867 9 2018-08-20
04:56:53		 Sala Sismica INGV-Roma 59987031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-20 04:50:25 ± 0.04
Latitude 43.3192 ± 0.0018
Longitude 12.6853 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67215701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 239
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 37
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.73565
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 75
Type of magnitude ML
Reference to an origin 67215701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-03 08:43:53

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 75
Type of magnitude ML
Reference to an origin 59987031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-20 04:56:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHZ. 2018-08-20T04:50:39.31 0.3 undecidable manual S 301 41.3253 50 0.3 67
IV.SACS.HHZ. 2018-08-20T04:50:39.53 0.1 undecidable manual P 231 81.6516 50 0.17 85
IV.MF5.EHZ. 2018-08-20T04:50:38.50 0.3 undecidable manual P 120 72.6717 50 0.53 60
IV.EL6.EHZ. 2018-08-20T04:50:37.11 0.3 undecidable manual S 88 33.6441 50 0.16 70
IV.MMO1.EHZ. 2018-08-20T04:50:37.44 0.3 undecidable manual P 132 69.7746 50 -0.08 66
IV.APEC.HHZ. 2018-08-20T04:50:37.63 0.3 undecidable manual S 321 34.1436 50 0.56 63
IV.MPAG.EHZ. 2018-08-20T04:50:37.25 0.6 undecidable manual S 10 34.9428 50 -0.04 48
IV.NARO.HHZ. 2018-08-20T04:50:36.80 0.3 undecidable manual S 345 33.4443 50 -0.1 71
IV.NRCA.HHZ. 2018-08-20T04:50:36.71 0.3 undecidable manual P 147 64.0914 50 0.06 67
IV.MC2.EHZ. 2018-08-20T04:50:36.46 0.3 undecidable manual P 138 60.8946 50 0.31 64
IV.CPGN.EHZ. 2018-08-20T04:50:36.88 0.3 undecidable manual P 331 60.9945 50 0.71 57
IV.GUMA.HHZ. 2018-08-20T04:50:35.95 0.3 undecidable manual P 118 59.7957 50 -0.03 68
IV.ATPI.EHZ. 2018-08-20T04:50:35.10 0.3 undecidable manual S 303 27.0507 109 0.03 73
IV.CAFI.HHZ. 2018-08-20T04:50:35.74 0.1 undecidable manual P 271 57.9975 50 0.03 91
IV.ARVD.HHZ. 2018-08-20T04:50:35.56 0.3 undecidable manual S 46 28.6491 108 -0.02 72
IV.MOMA.HHZ. 2018-08-20T04:50:35.43 0.1 undecidable manual P 189 57.8976 50 -0.27 87
IV.ATTE.HHZ. 2018-08-20T04:50:35.58 0.3 undecidable manual S 243 29.9478 50 -0.4 67
IV.PIEI.HHZ. 2018-08-20T04:50:34.81 0.3 undecidable manual S 333 26.9508 109 -0.2 70
IV.PARC.HHZ. 2018-08-20T04:50:34.66 0.3 undecidable manual P 316 51.3153 50 -0.01 70
IV.CSP1.EHZ. 2018-08-20T04:50:34.22 0.3 undecidable manual P 121 49.0176 50 -0.1 69
IV.ATBU.EHZ. 2018-08-20T04:50:33.23 0.6 undecidable manual S 328 20.5683 114 0.26 47
IV.PE3.EHZ. 2018-08-20T04:50:33.94 0.1 negative manual P 340 44.5221 50 0.31 88
IV.FRON.EHZ. 2018-08-20T04:50:33.36 0.3 undecidable manual S 8 22.2555 113 -0.15 71
IV.BADI.EHZ. 2018-08-20T04:50:33.05 0.1 undecidable manual P 301 41.3253 50 -0.09 93
IV.SNTG.HHZ. 2018-08-20T04:50:33.44 0.3 undecidable manual S 109 21.7671 113 0.08 72
IV.FDMO.HHZ. 2018-08-20T04:50:33.51 0.3 undecidable manual P 134 45.1215 50 -0.22 67
IV.CING.HHZ. 2018-08-20T04:50:33.08 0.1 undecidable manual P 81 41.625 50 -0.1 93
IV.ATVO.HHZ. 2018-08-20T04:50:33.68 0.3 undecidable manual S 287 23.5542 112 -0.24 70
IV.COR1.EHZ. 2018-08-20T04:50:33.99 0.1 undecidable manual P 36 42.9237 50 0.6 82
IV.CESI.HHZ. 2018-08-20T04:50:32.48 0.1 undecidable manual P 153 39.1275 50 -0.32 89
IV.APEC.HHZ. 2018-08-20T04:50:31.96 0.1 undecidable manual P 321 34.1436 50 -0.06 95
IV.ATCC.EHZ. 2018-08-20T04:50:31.54 0.3 undecidable manual S 194 15.2736 121 0.19 72
IV.ATTE.HHZ. 2018-08-20T04:50:31.03 0.1 positive manual P 243 29.9478 50 -0.36 90
IV.MPAG.EHZ. 2018-08-20T04:50:31.97 0.1 undecidable manual P 10 34.9428 50 -0.18 92
IV.SSFR.HHN. 2018-08-20T04:50:31.35 0.6 undecidable manual S 31 15.1737 122 0.04 49
IV.NARO.HHZ. 2018-08-20T04:50:31.55 0.1 undecidable manual P 345 33.4443 50 -0.37 89
IV.ATMI.HHZ. 2018-08-20T04:50:31.81 0.6 undecidable manual P 273 33.744 50 -0.16 47
IV.EL6.EHZ. 2018-08-20T04:50:31.80 0.1 positive manual P 88 33.6441 50 -0.15 93
IV.MURB.HHZ. 2018-08-20T04:50:31.44 0.3 undecidable manual S 244 14.3745 123 0.36 69
IV.ARVD.HHZ. 2018-08-20T04:50:30.95 0.1 undecidable manual P 46 28.6491 108 -0.22 93
IV.ATVO.HHZ. 2018-08-20T04:50:30.02 0.1 positive manual P 287 23.5542 112 -0.18 94
IV.PIEI.HHZ. 2018-08-20T04:50:30.52 0.1 undecidable manual P 333 26.9508 109 -0.32 91
IV.ATSC.EHE. 2018-08-20T04:50:30.21 0.6 undecidable manual S 0 11.6772 129 -0.1 49
IV.ATFO.HHZ. 2018-08-20T04:50:30.08 0.3 undecidable manual S 300 10.5783 131 0.05 74
IV.ATPI.EHZ. 2018-08-20T04:50:30.69 0.1 positive manual P 303 27.0507 109 -0.18 94
IV.SNTG.HHZ. 2018-08-20T04:50:29.89 0.1 undecidable manual P 109 21.7671 113 0.01 98
IV.ATBU.EHZ. 2018-08-20T04:50:29.82 0.1 undecidable manual P 328 20.5683 114 0.16 95
IV.FRON.EHZ. 2018-08-20T04:50:29.84 0.1 undecidable manual P 8 22.2555 113 -0.13 95
IV.ATFO.HHZ. 2018-08-20T04:50:28.11 0.1 positive manual P 300 10.5783 131 0.15 97
IV.MURB.HHZ. 2018-08-20T04:50:28.71 0.1 positive manual P 244 14.3745 123 0.14 96
IV.FOSV.EHZ. 2018-08-20T04:50:28.97 0.6 undecidable manual S 114 6.6933 144 -0.14 49
IV.ATCC.EHZ. 2018-08-20T04:50:28.83 0.1 undecidable manual P 194 15.2736 121 0.11 97
IV.SSFR.HHN. 2018-08-20T04:50:28.76 0.1 undecidable manual P 31 15.1737 122 0.06 98
IV.ATSC.EHE. 2018-08-20T04:50:28.21 0.1 undecidable manual P 0 11.6772 129 0.09 98
IV.FOSV.EHZ. 2018-08-20T04:50:27.46 0.1 undecidable manual P 114 6.6933 144 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:2.2 0.0024027215 0.2592 AML other m 2018-08-20T04:50:29.17
IV.FOSV.EHE. ML:2.2 0.0026697255 0.1376 AML other m 2018-08-20T04:50:29.27
IV.ATFO.HHN. ML:2.4 0.0034222025000000002 0.0608 AML other m 2018-08-20T04:50:30.21
IV.ATFO.HHE. ML:2.6 0.005349247 0.0992 AML other m 2018-08-20T04:50:30.44
IV.ATCC.EHE. ML:2.7 0.0045912425 0.2592 AML other m 2018-08-20T04:50:31.83
IV.ATCC.EHN. ML:2.5 0.0031063095 0.2016 AML other m 2018-08-20T04:50:31.68
IV.MURB.HNE. ML:2.9 0.0079904575 0.2624 AML other m 2018-08-20T04:50:32.51
IV.MURB.HHE. ML:3.0 0.009840492499999999 0.2176 AML other m 2018-08-20T04:50:32.50
IV.MURB.HHN. ML:2.8 0.00677139 0.2208 AML other m 2018-08-20T04:50:32.53
IV.MURB.HNN. ML:2.8 0.006794406 0.1888 AML other m 2018-08-20T04:50:32.65
IV.SNTG.HHE. ML:2.0 0.0006500278999999999 0.3616 AML other m 2018-08-20T04:50:33.66
IV.SNTG.HHN. ML:2.6 0.002514361 0.2816 AML other m 2018-08-20T04:50:33.56
IV.SNTG.HNN. ML:2.5 0.0024147220000000002 0.3008 AML other m 2018-08-20T04:50:33.56
IV.ATVO.HHE. ML:2.4 0.00156819805 0.16 AML other m 2018-08-20T04:50:33.92
IV.FRON.EHE. ML:2.4 0.0016254395000000002 0.1408 AML other m 2018-08-20T04:50:34.11
IV.ATVO.HHN. ML:2.3 0.001155173 0.16 AML other m 2018-08-20T04:50:34.83
IV.FRON.EHN. ML:2.7 0.0034451515 0.0992 AML other m 2018-08-20T04:50:34.90
IV.SNTG.HNE. ML:2.2 0.00112819705 0.3008 AML other m 2018-08-20T04:50:35.12
IV.PIEI.HHN. ML:2.3 0.0010332755000000001 0.1184 AML other m 2018-08-20T04:50:35.21
IV.ARVD.HHN. ML:2.0 0.000503066 0.1792 AML other m 2018-08-20T04:50:35.78
IV.ARVD.HHE. ML:2.2 0.00078018985 0.0992 AML other m 2018-08-20T04:50:35.81
IV.ATTE.HHN. ML:2.1 0.0006789107500000001 0.3584 AML other m 2018-08-20T04:50:36.60
IV.ATTE.HHE. ML:2.3 0.0010938055 0.2016 AML other m 2018-08-20T04:50:36.78
IV.NARO.HHN. ML:2.3 0.00082295335 0.1408 AML other m 2018-08-20T04:50:36.90
IV.NARO.HHE. ML:2.5 0.0012550005 1.9424 AML other m 2018-08-20T04:50:37.02
IV.PIEI.HHE. ML:2.3 0.0011982475 0.16 AML other m 2018-08-20T04:50:37.44
IV.EL6.EHE. ML:2.6 0.0015728314499999997 0.3392 AML other m 2018-08-20T04:50:37.85
IV.APEC.HHN. ML:2.3 0.00093959035 0.16 AML other m 2018-08-20T04:50:38.02
IV.APEC.HNN. ML:2.5 0.0012334525 0.1408 AML other m 2018-08-20T04:50:38.08
IV.APEC.HNE. ML:2.4 0.0011468333 0.16 AML other m 2018-08-20T04:50:38.20
IV.APEC.HHE. ML:2.4 0.0010613725999999999 0.1184 AML other m 2018-08-20T04:50:38.20
IV.MPAG.EHE. ML:2.1 0.00050705735 0.16 AML other m 2018-08-20T04:50:39.05
IV.ATPI.EHN. ML:2.2 0.0008047858999999999 0.4032 AML other m 2018-08-20T04:50:39.23
IV.BADI.EHE. ML:2.5 0.00101666385 0.1376 AML other m 2018-08-20T04:50:39.64
IV.CING.HHN. ML:2.1 0.00040894075 0.2816 AML other m 2018-08-20T04:50:39.69
IV.BADI.EHN. ML:2.3 0.00064511035 0.1408 AML other m 2018-08-20T04:50:39.87
IV.EL6.EHN. ML:2.4 0.0010182495 1.6 AML other m 2018-08-20T04:50:40.98
IV.ATPI.EHE. ML:2.2 0.0008270546000000001 0.5408 AML other m 2018-08-20T04:50:40.37
IV.ATMI.HHE. ML:2.3 0.0008854066 0.2432 AML other m 2018-08-20T04:50:40.53
IV.ATMI.HHN. ML:2.4 0.001003605 0.32 AML other m 2018-08-20T04:50:40.56
IV.CING.HHE. ML:2.1 0.00041268195 0.3392 AML other m 2018-08-20T04:50:41.19
IV.COR1.EHE. ML:2.1 0.00042573075 0.16 AML other m 2018-08-20T04:50:41.73
IV.NRCA.HNN. ML:1.9 0.00015129865000000002 0.7104 AML other m 2018-08-20T04:50:43.23
IV.PARC.HHN. ML:1.9 0.0001857469 0.2368 AML other m 2018-08-20T04:50:43.59
IV.PE3.EHN. ML:2.7 0.001515 0.92 AML other m 2018-08-20T04:50:43.53
IV.GUMA.HNN. ML:2.7 0.00110063395 0.9312 AML other m 2018-08-20T04:50:43.00
IV.FDMO.HHE. ML:1.6 0.000129688915 0.3808 AML other m 2018-08-20T04:50:44.12
IV.MPAG.EHN. ML:1.9 0.0002976789 0.4 AML other m 2018-08-20T04:50:44.23
IV.PE3.EHE. ML:2.6 0.0013200215000000002 0.3392 AML other m 2018-08-20T04:50:44.51
IV.FDMO.HHN. ML:1.7 0.00015282655 0.2624 AML other m 2018-08-20T04:50:44.71
IV.COR1.EHN. ML:2.3 0.0006205000000000001 1.76 AML other m 2018-08-20T04:50:44.02
IV.PARC.HHE. ML:2.0 0.00024382309999999998 0.2016 AML other m 2018-08-20T04:50:45.52
IV.MOMA.HNE. ML:2.1 0.00024311260000000001 1.568 AML other m 2018-08-20T04:50:45.83
IV.CAFI.HHE. ML:2.0 0.00020509640000000002 0.2784 AML other m 2018-08-20T04:50:45.83
IV.CAFI.HNE. ML:2.0 0.0001935553 0.2976 AML other m 2018-08-20T04:50:45.84
IV.MOMA.HHE. ML:2.0 0.00021611665000000003 0.2176 AML other m 2018-08-20T04:50:46.24
IV.CESI.HHE. ML:1.8 0.000203762 0.32 AML other m 2018-08-20T04:50:46.64
IV.MOMA.HHN. ML:1.9 0.0001777311 0.2976 AML other m 2018-08-20T04:50:46.75
IV.CESI.HHN. ML:1.9 0.0002639898 0.3616 AML other m 2018-08-20T04:50:47.45
IV.CPGN.EHN. ML:2.0 0.00021612767 0.3616 AML other m 2018-08-20T04:50:47.70
IV.NRCA.HHN. ML:1.9 0.000150979 0.1408 AML other m 2018-08-20T04:50:48.20
IV.GUMA.HNE. ML:2.6 0.00074875995 0.56 AML other m 2018-08-20T04:50:48.50
IV.GUMA.HHE. ML:2.5 0.00069954225 0.56 AML other m 2018-08-20T04:50:48.80
IV.NRCA.HHE. ML:1.9 0.00013649139999999998 0.16 AML other m 2018-08-20T04:50:49.64
IV.CPGN.EHE. ML:2.0 0.00019093268500000002 0.3808 AML other m 2018-08-20T04:50:50.60
IV.GUMA.HHN. ML:2.3 0.0004442744 0.5184 AML other m 2018-08-20T04:50:51.30
IV.NRCA.HNE. ML:1.8 0.0001263064 0.16 AML other m 2018-08-20T04:50:52.50
IV.CPGN.HNN. ML:2.3 0.00039719693500000006 0.8224 AML other m 2018-08-20T04:50:53.45
IV.CPGN.HNE. ML:2.2 0.00031396915000000004 1.2096 AML other m 2018-08-20T04:50:54.68
IV.SACS.HHE. ML:2.0 0.00013181255 0.5216 AML other m 2018-08-20T04:50:54.30
IV.SACS.HNE. ML:2.0 0.00013576354999999998 0.4992 AML other m 2018-08-20T04:50:54.30
IV.SACS.HNN. ML:2.2 0.00020734255 1.2992 AML other m 2018-08-20T04:50:54.14
IV.SACS.HHN. ML:2.2 0.0002219649 1.28 AML other m 2018-08-20T04:50:54.15
IV.MF5.EHN. ML:2.1 0.0001856782 0.6592 AML other m 2018-08-20T04:50:58.86
IV.MF5.EHE. ML:2.2 0.0002542521 1.5392 AML other m 2018-08-20T04:50:59.82
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
Waveforms Seismic signals in miniseed + resp format Download