Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-08-2018 and time 03:45:39 (Italy) in region 6 km N Valfabbrica (PG)

A magnitude ML 2.0 earthquake occured in region: 6 km N Valfabbrica (PG), on

  • 18-08-2018 01:45:39 (UTC)
  • 18-08-2018 03:45:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2120, 12.6220 at 8 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
Valfabbrica PG 6 3389 3389
Gualdo Tadino PG 13 15208 18597
Fossato di Vico PG 15 2840 21437
Assisi PG 16 28299 49736
Gubbio PG 16 32216 81952
Sigillo PG 17 2404 84356
Bastia Umbra PG 17 21874 106230
Nocera Umbra PG 18 5839 112069
Costacciaro PG 18 1216 113285
Valtopina PG 20 1398 114683

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Perugia (166134 inhabitants)
29 Km N of Foligno (57155 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
72 Km N of Terni (111501 inhabitants)
77 Km SW of Fano (60888 inhabitants)
81 Km SW of Pesaro (94582 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
95 Km S of Rimini (147750 inhabitants)
98 Km NE of Viterbo (67173 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 2.0 2018-08-18
01:45:39		 43.2118 12.6222 8 2019-04-24
14:51:19		 Bollettino Sismico Italiano INGV 67267061
Reviewed
Rev100 		ML 2.0 2018-08-18
01:45:39		 43.2097 12.6245 9 2018-08-18
01:56:27		 Sala Sismica INGV-Roma 59886881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-18 01:45:39 ± 0.05
Latitude 43.2118 ± 0.0027
Longitude 12.6222 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67267061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 352
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.65111
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 59886881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-18 01:56:27

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 67267061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-05 08:01:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2018-08-18T01:46:03.01 0.6 undecidable manual S 110 72.2721 50 1.57 24
IV.GUMA.HHZ. 2018-08-18T01:45:59.42 0.6 undecidable manual S 106 59.9955 50 1.24 29
IV.CAFI.HHZ. 2018-08-18T01:45:57.05 0.6 undecidable manual S 284 54.501 50 0.34 43
IV.CING.HHZ. 2018-08-18T01:45:55.72 0.6 undecidable manual S 68 49.7169 50 0.3 44
IV.NARO.HHZ. 2018-08-18T01:45:54.12 0.6 undecidable manual S 356 44.4222 50 0.12 46
IV.EL6.EHZ. 2018-08-18T01:45:53.27 0.3 undecidable manual S 71 40.8258 50 0.21 68
IV.FDMO.HHZ. 2018-08-18T01:45:53.48 0.3 undecidable manual S 117 42.4242 50 0.01 70
IV.APEC.HHZ. 2018-08-18T01:45:53.68 0.3 undecidable manual S 337 41.7249 50 0.38 65
IV.ARVD.HHZ. 2018-08-18T01:45:53.08 0.3 undecidable manual S 39 40.9257 50 0.01 70
IV.MF5.EHZ. 2018-08-18T01:45:52.37 0.1 undecidable manual P 110 72.2721 50 0.38 82
IV.ARRO.EHZ. 2018-08-18T01:45:51.75 0.3 undecidable manual P 171 71.1732 50 -0.07 66
IV.PIEI.HHZ. 2018-08-18T01:45:51.97 0.3 undecidable manual S 349 36.6411 50 0.05 70
IV.SACS.HHZ. 2018-08-18T01:45:51.86 0.1 undecidable manual P 235 70.374 50 0.16 86
IV.CESI.HHZ. 2018-08-18T01:45:50.79 0.6 undecidable manual S 135 32.4453 104 0.1 47
IV.FRON.EHZ. 2018-08-18T01:45:50.99 0.3 undecidable manual S 14 34.9428 50 -0.49 64
IV.GUMA.HHZ. 2018-08-18T01:45:50.26 0.1 undecidable manual P 106 59.9955 50 0.15 88
IV.ATPI.EHZ. 2018-08-18T01:45:50.42 0.3 undecidable manual S 326 31.8459 105 -0.09 70
IV.ATMI.HHZ. 2018-08-18T01:45:50.39 0.3 undecidable manual S 296 31.6461 105 -0.05 71
IV.NRCA.HHZ. 2018-08-18T01:45:49.46 0.3 undecidable manual P 136 57.8976 50 -0.32 64
IV.SSFR.HHZ. 2018-08-18T01:45:49.19 0.3 undecidable manual S 27 28.0497 106 -0.04 72
IV.CAFI.HHZ. 2018-08-18T01:45:49.30 0.1 negative manual P 284 54.501 50 0.04 91
IV.PE3.EHZ. 2018-08-18T01:45:49.66 0.1 undecidable manual P 349 54.6009 50 0.38 85
IV.PARC.HHZ. 2018-08-18T01:45:49.86 0.3 undecidable manual P 328 57.498 50 0.15 66
IV.SNTG.HHZ. 2018-08-18T01:45:48.60 0.3 undecidable manual S 79 26.1516 108 -0.01 72
IV.CING.HHZ. 2018-08-18T01:45:48.36 0.1 undecidable manual P 68 49.7169 50 -0.16 90
IV.CSP1.EHZ. 2018-08-18T01:45:48.19 0.1 undecidable manual P 106 49.0176 50 -0.22 89
IV.ATVO.HHZ. 2018-08-18T01:45:48.53 0.3 undecidable manual S 317 25.6521 108 0.09 71
IV.NARO.HHZ. 2018-08-18T01:45:47.28 0.1 undecidable manual P 356 44.4222 50 -0.41 86
IV.MOMA.HHZ. 2018-08-18T01:45:47.55 0.3 undecidable manual P 185 45.4212 50 -0.31 66
IV.ATTE.HHZ. 2018-08-18T01:45:47.38 0.6 undecidable manual S 266 21.7671 111 0.22 47
IV.FDMO.HHZ. 2018-08-18T01:45:47.05 0.1 positive manual P 117 42.4242 50 -0.34 88
IV.APEC.HHZ. 2018-08-18T01:45:47.29 0.1 positive manual P 337 41.7249 50 0 94
IV.ARVD.HHZ. 2018-08-18T01:45:46.83 0.1 positive manual P 39 40.9257 50 -0.32 88
IV.ATFO.HHZ. 2018-08-18T01:45:46.26 0.3 undecidable manual S 347 17.6712 115 0.41 67
IV.EL6.EHZ. 2018-08-18T01:45:46.91 0.1 positive manual P 71 40.8258 50 -0.24 90
IV.PIEI.HHZ. 2018-08-18T01:45:46.28 0.1 undecidable manual P 349 36.6411 50 -0.22 91
IV.FOSV.EHZ. 2018-08-18T01:45:45.20 0.3 undecidable manual S 51 14.4744 120 0.32 69
IV.ATMI.HHZ. 2018-08-18T01:45:45.59 0.1 undecidable manual P 296 31.6461 105 -0.05 95
IV.CESI.HHZ. 2018-08-18T01:45:45.60 0.3 negative manual P 135 32.4453 104 -0.18 69
IV.FRON.EHZ. 2018-08-18T01:45:45.76 0.1 positive manual P 14 34.9428 50 -0.48 86
IV.ATPI.EHZ. 2018-08-18T01:45:45.53 0.1 negative manual P 326 31.8459 105 -0.15 93
IV.ATVO.HHZ. 2018-08-18T01:45:44.33 0.1 positive manual P 317 25.6521 108 -0.16 94
IV.SNTG.HHZ. 2018-08-18T01:45:44.52 0.1 positive manual P 79 26.1516 108 -0.06 95
IV.SSFR.HHZ. 2018-08-18T01:45:44.71 0.1 positive manual P 27 28.0497 106 -0.23 92
IV.ATFO.HHZ. 2018-08-18T01:45:43.17 0.1 positive manual P 347 17.6712 115 0.19 94
IV.ATTE.HHZ. 2018-08-18T01:45:43.82 0.1 positive manual P 266 21.7671 111 0.07 96
IV.FOSV.EHZ. 2018-08-18T01:45:42.56 0.1 positive manual P 51 14.4744 120 0.13 96
IV.ATCC.EHZ. 2018-08-18T01:45:41.92 0.6 undecidable manual S 154 3.2967 158 -0.26 48
IV.MURB.HNZ. 2018-08-18T01:45:41.89 0.3 positive manual P 306 9.6792 130 0.25 71
IV.ATCC.EHZ. 2018-08-18T01:45:40.89 0.1 undecidable manual P 154 3.2967 158 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:2.5 0.004101865 0.34 AML other m 2018-08-18T01:45:44.24
IV.FOSV.EHE. ML:2.0 0.0011 1.2 AML other m 2018-08-18T01:45:45.38
IV.MURB.HNE. ML:2.5 0.0045449999999999996 0.84 AML other m 2018-08-18T01:45:45.90
IV.FOSV.EHN. ML:2.2 0.0015550000000000002 0.12 AML other m 2018-08-18T01:45:45.61
IV.MURB.HHN. ML:2.6 0.0056190534999999995 0.32 AML other m 2018-08-18T01:45:46.11
IV.MURB.HNN. ML:2.5 0.0052450000000000005 0.32 AML other m 2018-08-18T01:45:46.12
IV.ATFO.HHE. ML:1.8 0.00062833155 0.26 AML other m 2018-08-18T01:45:46.72
IV.ATFO.HHN. ML:1.9 0.0006734999999999999 1.04 AML other m 2018-08-18T01:45:46.45
IV.ATTE.HHN. ML:1.7 0.00035145995000000004 0.26 AML other m 2018-08-18T01:45:47.72
IV.ATTE.HHE. ML:1.7 0.00036510865000000006 0.22 AML other m 2018-08-18T01:45:48.19
IV.ATVO.HHE. ML:1.6 0.0002097003 0.14 AML other m 2018-08-18T01:45:48.65
IV.SNTG.HNN. ML:2.2 0.0009280036 1.7896 AML other m 2018-08-18T01:45:48.94
IV.SNTG.HHN. ML:2.2 0.00095400055 1.78 AML other m 2018-08-18T01:45:48.94
IV.SNTG.HHE. ML:1.8 0.00039954815 1.74 AML other m 2018-08-18T01:45:49.11
IV.SNTG.HNE. ML:2.2 0.0008753638 1.7304 AML other m 2018-08-18T01:45:49.12
IV.SSFR.HHE. ML:2.4 0.001321035 0.2 AML other m 2018-08-18T01:45:49.23
IV.ATVO.HHN. ML:1.9 0.0004452815 0.28 AML other m 2018-08-18T01:45:49.59
IV.SSFR.HNN. ML:2.5 0.0016675219999999998 0.16 AML other m 2018-08-18T01:45:49.97
IV.ATPI.EHN. ML:2.0 0.0004095109 0.24 AML other m 2018-08-18T01:45:50.69
IV.SSFR.HHN. ML:2.5 0.0015899999999999998 0.54 AML other m 2018-08-18T01:45:50.99
IV.SSFR.HNE. ML:2.4 0.001494777 0.1504 AML other m 2018-08-18T01:45:50.74
IV.FRON.EHE. ML:2.1 0.000587 0.18 AML other m 2018-08-18T01:45:51.14
IV.CESI.HHN. ML:1.7 0.00024083864999999998 0.18 AML other m 2018-08-18T01:45:51.27
IV.CESI.HHE. ML:1.6 0.0001907201 0.18 AML other m 2018-08-18T01:45:51.57
IV.ATMI.HHN. ML:2.1 0.00059003785 0.18 AML other m 2018-08-18T01:45:51.79
IV.ATMI.HHE. ML:2.2 0.0007059999999999999 1.26 AML other m 2018-08-18T01:45:51.81
IV.FRON.EHN. ML:2.2 0.0006191082999999999 0.1 AML other m 2018-08-18T01:45:52.27
IV.PIEI.HHE. ML:2.0 0.00040893965 0.12 AML other m 2018-08-18T01:45:52.75
IV.ATPI.EHE. ML:1.7 0.00023779260000000003 1.76 AML other m 2018-08-18T01:45:52.93
IV.PIEI.HHN. ML:1.7 0.00020782725000000003 0.12 AML other m 2018-08-18T01:45:53.70
IV.ARVD.HHN. ML:1.9 0.0002481572 1.78 AML other m 2018-08-18T01:45:53.90
IV.FDMO.HHE. ML:1.9 0.0002515 0.94 AML other m 2018-08-18T01:45:53.44
IV.ARVD.HHE. ML:2.0 0.0003375 0.66 AML other m 2018-08-18T01:45:53.94
IV.EL6.EHE. ML:2.3 0.0007103719 0.38 AML other m 2018-08-18T01:45:53.80
IV.FDMO.HHN. ML:1.9 0.0002825 1.48 AML other m 2018-08-18T01:45:54.89
IV.APEC.HHN. ML:1.9 0.00024985325000000005 0.28 AML other m 2018-08-18T01:45:54.71
IV.EL6.EHN. ML:2.2 0.0005105 0.68 AML other m 2018-08-18T01:45:54.57
IV.NARO.HHE. ML:1.6 0.00013516235 0.08 AML other m 2018-08-18T01:45:55.55
IV.APEC.HHE. ML:1.8 0.000217 0.66 AML other m 2018-08-18T01:45:56.39
IV.CING.HHN. ML:1.9 0.00020999999999999998 0.12 AML other m 2018-08-18T01:45:56.33
IV.CING.HHE. ML:1.8 0.000177 0.26 AML other m 2018-08-18T01:45:56.47
IV.NARO.HHN. ML:1.6 0.000122 0.8 AML other m 2018-08-18T01:45:56.29
IV.CSP1.EHE. ML:2.1 0.0003115 0.2 AML other m 2018-08-18T01:45:57.44
IV.CAFI.HHE. ML:2.0 0.00023500000000000002 0.4 AML other m 2018-08-18T01:45:58.38
IV.CAFI.HHN. ML:2.0 0.00021 0.5 AML other m 2018-08-18T01:45:58.38
IV.CAFI.HNN. ML:2.0 0.0002118163 0.5 AML other m 2018-08-18T01:45:58.38
IV.CAFI.HNE. ML:2.0 0.00023671575 0.42 AML other m 2018-08-18T01:45:58.39
IV.NRCA.HHN. ML:2.0 0.0002392904 0.18 AML other m 2018-08-18T01:45:58.96
IV.PARC.HHE. ML:1.8 0.0001285 0.3 AML other m 2018-08-18T01:45:59.71
IV.GUMA.HHE. ML:2.3 0.000425 0.2 AML other m 2018-08-18T01:45:59.91
IV.NRCA.HHE. ML:2.0 0.000206666 0.12 AML other m 2018-08-18T01:46:00.27
IV.PE3.EHN. ML:2.2 0.00041749999999999996 1.54 AML other m 2018-08-18T01:46:00.99
IV.PE3.EHE. ML:2.3 0.00045799999999999997 0.5 AML other m 2018-08-18T01:46:00.07
IV.PARC.HHN. ML:1.6 0.00007825 0.46 AML other m 2018-08-18T01:46:00.52
IV.CSP1.EHN. ML:2.4 0.00069225 0.08 AML other m 2018-08-18T01:46:02.33
IV.GUMA.HHN. ML:2.2 0.000372 0.44 AML other m 2018-08-18T01:46:02.61
IV.GUMA.HNE. ML:2.3 0.00044799999999999994 0.26 AML other m 2018-08-18T01:46:02.68
IV.SACS.HHN. ML:1.8 0.00011115627 0.28 AML other m 2018-08-18T01:46:03.54
IV.ARRO.EHN. ML:1.5 0.000054610014999999995 0.18 AML other m 2018-08-18T01:46:04.15
IV.ARRO.EHE. ML:1.6 0.000062968515 0.26 AML other m 2018-08-18T01:46:06.26
IV.SACS.HHE. ML:1.9 0.0001388897 1.66 AML other m 2018-08-18T01:46:06.14
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