Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 04-08-2018 and time 08:27:37 (UTC) in region 1 km SW Offagna (AN)

A magnitude ML 2.0 earthquake occured in region: 1 km SW Offagna (AN), on

  • 04-08-2018 08:27:37 (UTC)
  • 04-08-2018 10:27:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5220, 13.4350 at 33 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
Offagna AN 1 1935 1935
Polverigi AN 3 4508 6443
Agugliano AN 5 4865 11308
Osimo AN 6 34977 46285
Camerata Picena AN 9 2567 48852
Camerano AN 10 7322 56174
Santa Maria Nuova AN 10 4179 60353
Castelfidardo AN 11 18733 79086
Filottrano AN 12 9499 88585
Falconara Marittima AN 12 26565 115150
Montefano MC 12 3541 118691
Chiaravalle AN 12 14796 133487
Ancona AN 13 100861 234348
Sirolo AN 15 4051 238399
Numana AN 15 3775 242174
Jesi AN 15 40399 282573
Monsano AN 16 3405 285978
Monte San Vito AN 16 6848 292826
Recanati MC 16 21349 314175
Montemarciano AN 17 9992 324167
Loreto AN 17 12814 336981
Montecassiano MC 18 7125 344106
Appignano MC 19 4213 348319
San Marcello AN 19 2057 350376
Morro d'Alba AN 20 1903 352279

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Ancona (100861 inhabitants)
49 Km SE of Fano (60888 inhabitants)
60 Km SE of Pesaro (94582 inhabitants)
86 Km NE of Foligno (57155 inhabitants)
92 Km SE of Rimini (147750 inhabitants)
96 Km E of Perugia (166134 inhabitants)
98 Km N of Teramo (54892 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 2018-08-04
08:27:37		 43.522 13.4347 33 2019-04-24
14:50:54		 Bollettino Sismico Italiano INGV 60130281
Reviewed
Rev100 		ML 2.0 2018-08-04
08:27:37		 43.5565 13.4922 8 2018-08-04
08:43:11		 Sala Sismica INGV-Roma 59343321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-04 08:27:37 ± 0.16
Latitude 43.5220 ± 0.0081
Longitude 13.4347 ± 0.0099
Depth (km) 33 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 60130281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 876
Semi-minor axis of confidence ellipse (meter) 551
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 63
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.36427
Number of stations at which the event was observed 41
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 56
Type of magnitude ML
Reference to an origin 60130281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-23 14:42:18

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 59343321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-04 08:43:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SLCN.HHZ. 2018-08-04T08:29:30.01 3.0 undecidable manual Sg 14.18 0
IV.QLNO.HHZ. 2018-08-04T08:29:24.87 3.0 undecidable manual Sn 3.81 0
OX.CLUD.HHZ. 2018-08-04T08:29:14.89 3.0 undecidable manual Sg 10.74 0
IV.SBPO.HNZ. 2018-08-04T08:28:50.57 3.0 undecidable manual Sn 2.54 0
GU.SARM.EHZ. 2018-08-04T08:28:44.98 3.0 undecidable manual Sn -0.29 0
GU.RNCA.HHZ. 2018-08-04T08:28:43.17 3.0 negative manual Pg 12.35 0
IV.MCRV.HHZ. 2018-08-04T08:28:31.99 3.0 undecidable manual Pg 5.83 0
IV.NDIM.HNZ. 2018-08-04T08:28:20.59 3.0 positive manual Pg 4.32 0
IV.SAMA.HHZ. 2018-08-04T08:28:13.06 3.0 negative manual Pg 3.85 0
IV.PARC.HHZ. 2018-08-04T08:28:07.40 0.6 undecidable manual S 279 97.125 54 0.83 33
IV.ATVO.HHZ. 2018-08-04T08:28:03.80 0.3 undecidable manual S 260 84.249 107 0.38 62
IV.ASSB.HHZ. 2018-08-04T08:28:03.70 0.6 undecidable manual S 0.09 44
IV.MURB.HHZ. 2018-08-04T08:28:02.90 0.6 undecidable manual S 249 78.7656 108 0.86 35
IV.NRCA.HHZ. 2018-08-04T08:28:02.80 0.6 undecidable manual S 199 80.6637 108 0.29 42
IV.ATFO.HHZ. 2018-08-04T08:28:01.10 0.6 undecidable manual S 256 71.6727 110 0.87 36
IV.ATCC.EHZ. 2018-08-04T08:28:01.30 0.6 undecidable manual S 240 74.1702 109 0.42 42
IV.LMD.HHZ. 2018-08-04T08:28:01.97 3.0 negative manual P 151.4373 0.89 0
IV.CESI.HHZ. 2018-08-04T08:28:00.20 0.6 undecidable manual S 217 71.5728 110 -0.02 46
IV.PIEI.HHZ. 2018-08-04T08:28:00.60 0.3 undecidable manual S 272 72.372 110 0.18 66
IV.MMO1.EHZ. 2018-08-04T08:27:59.90 0.3 undecidable manual S 187 69.5748 111 0.17 66
IV.MF5.EHZ. 2018-08-04T08:27:58.20 0.3 undecidable manual S 178 59.2962 114 1.02 50
IV.CAFI.HHZ. 2018-08-04T08:27:57.88 0.3 undecidable manual P 260 120.1908 54 0.68 51
IV.FDMO.HHZ. 2018-08-04T08:27:57.30 0.3 undecidable manual S 208 60.6948 114 -0.23 67
IV.FOSV.EHZ. 2018-08-04T08:27:57.30 0.1 undecidable manual S 245 59.8956 114 -0.01 93
IV.FRON.EHZ. 2018-08-04T08:27:56.80 0.6 undecidable manual S 270 56.9985 115 0.17 46
IV.GUMA.HHZ. 2018-08-04T08:27:56.20 0.3 undecidable manual S 189 51.6039 118 0.87 55
IV.CAMP.HHZ. 2018-08-04T08:27:55.72 0.6 undecidable manual P 181 109.4127 54 -0.14 42
IV.MOMA.HHZ. 2018-08-04T08:27:55.72 3.0 positive manual P 106.0161 0.29 0
OB.GAVE.EHZ. 2018-08-04T08:27:55.43 3.0 undecidable manual P 0.17 0
IV.PARC.HHZ. 2018-08-04T08:27:54.37 0.1 undecidable manual P 279 97.125 54 0.04 86
IV.ATTE.HHZ. 2018-08-04T08:27:54.84 0.3 undecidable manual P 248 94.3389 54 0.86 50
IV.SNTG.HHZ. 2018-08-04T08:27:54.70 0.6 undecidable manual S 234 49.617 119 -0.18 46
IV.COR1.EHZ. 2018-08-04T08:27:53.60 0.3 undecidable manual S 289 36.9297 128 1.56 41
IV.ARVD.HHZ. 2018-08-04T08:27:52.40 0.1 undecidable manual S 266 39.7269 125 -0.24 92
IV.ATVO.HHZ. 2018-08-04T08:27:52.17 0.3 undecidable manual P 260 84.249 107 -0.34 63
IV.PE3.EHZ. 2018-08-04T08:27:51.13 0.6 undecidable manual P 285 77.7666 108 -0.44 41
IV.EL6.EHZ. 2018-08-04T08:27:51.30 0.1 undecidable manual S 232 34.3434 130 -0.18 94
IV.MTRA.EHZ. 2018-08-04T08:27:51.94 0.6 undecidable manual P 182 84.9483 107 -0.68 38
IV.MURB.HHZ. 2018-08-04T08:27:51.45 0.1 undecidable manual P 249 78.7656 108 -0.26 86
IV.NRCA.HHZ. 2018-08-04T08:27:51.38 0.1 negative manual P 199 80.6637 108 -0.61 79
IV.ASSB.HHZ. 2018-08-04T08:27:51.78 0.3 positive manual P -0.59 58
IV.PIEI.HHZ. 2018-08-04T08:27:50.37 0.3 undecidable manual P 272 72.372 110 -0.41 63
IV.CESI.HHZ. 2018-08-04T08:27:50.11 0.1 positive manual P 217 71.5728 110 -0.55 81
IV.ATCC.EHZ. 2018-08-04T08:27:50.68 0.1 positive manual P 240 74.1702 109 -0.36 85
IV.PP3.HNE. 2018-08-04T08:27:50.50 1.0 undecidable manual S 139 21.2676 144 1.39 15
IV.ATFO.HHZ. 2018-08-04T08:27:50.13 0.6 undecidable manual P 256 71.6727 110 -0.54 41
IV.PESA.HHZ. 2018-08-04T08:27:50.49 0.3 undecidable manual P 314 66.5778 112 0.55 62
IV.CING.HHZ. 2018-08-04T08:27:49.60 0.3 undecidable manual S 230 25.2525 139 -0.15 72
IV.MMO1.EHZ. 2018-08-04T08:27:49.52 0.6 undecidable manual P 187 69.5748 111 -0.86 36
IV.MF5.EHZ. 2018-08-04T08:27:48.98 0.1 undecidable manual P 178 59.2962 114 0.07 92
IV.AOI.HHZ. 2018-08-04T08:27:48.40 0.3 undecidable manual S 77 13.7751 155 0.3 73
IV.GUMA.HHZ. 2018-08-04T08:27:48.10 0.3 undecidable manual P 189 51.6039 118 0.26 67
IV.FDMO.HHZ. 2018-08-04T08:27:48.51 0.3 undecidable manual P 208 60.6948 114 -0.6 61
IV.FOSV.EHZ. 2018-08-04T08:27:48.58 0.1 positive manual P 245 59.8956 114 -0.41 86
IV.FRON.EHZ. 2018-08-04T08:27:48.41 0.1 undecidable manual P 270 56.9985 115 -0.18 91
IV.SNTG.HHZ. 2018-08-04T08:27:47.12 0.1 undecidable manual P 234 49.617 119 -0.46 87
IV.COR1.EHZ. 2018-08-04T08:27:46.21 0.1 undecidable manual P 289 36.9297 128 0.27 93
IV.ARVD.HHZ. 2018-08-04T08:27:45.98 0.1 undecidable manual P 266 39.7269 125 -0.31 91
IV.EL6.EHZ. 2018-08-04T08:27:45.39 0.1 undecidable manual P 232 34.3434 130 -0.23 94
IV.MNTP.HNZ. 2018-08-04T08:27:44.68 1.0 undecidable manual P 176 42.7239 123 -1.99 10
IV.PP3.HNE. 2018-08-04T08:27:44.67 0.1 undecidable manual P 139 21.2676 144 0.42 92
IV.CING.HHZ. 2018-08-04T08:27:44.32 0.1 negative manual P 230 25.2525 139 -0.3 94
IV.AOI.HHZ. 2018-08-04T08:27:43.78 0.1 positive manual P 77 13.7751 155 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OB.GAVE.EHE. ML:2.1 0.000118 0.72 AML other m 2018-08-04T08:28:11.47
IV.AOI.HHE. ML:0.0 0.00043 1.22 AML other m 2018-08-04T08:27:49.18
IV.CING.HHE. ML:0.0 0.0002525 1.74 AML other m 2018-08-04T08:27:49.09
IV.CING.HHN. ML:0.0 0.000248 1.56 AML other m 2018-08-04T08:27:50.97
IV.EL6.EHE. ML:0.0 0.000484 0.54 AML other m 2018-08-04T08:27:51.64
IV.EL6.EHN. ML:0.0 0.00042200000000000007 0.58 AML other m 2018-08-04T08:27:52.58
IV.ARVD.HHE. ML:0.0 0.0003015 0.94 AML other m 2018-08-04T08:27:52.71
IV.ARVD.HHN. ML:0.0 0.00021050000000000002 1.24 AML other m 2018-08-04T08:27:53.95
IV.COR1.EHE. ML:0.0 0.00032618969999999997 0.3008 AML other m 2018-08-04T08:27:54.04
IV.COR1.EHN. ML:0.0 0.0006845 0.22 AML other m 2018-08-04T08:27:53.90
IV.MNTP.HNN. ML:0.0 0.0007199999999999999 0.48 AML other m 2018-08-04T08:27:54.69
IV.MNTP.HNE. ML:0.0 0.000579 0.8 AML other m 2018-08-04T08:27:55.92
IV.GUMA.HHN. ML:0.0 0.0006718919999999999 0.3392 AML other m 2018-08-04T08:27:57.02
IV.FRON.EHE. ML:0.0 0.0002415 0.58 AML other m 2018-08-04T08:27:57.50
IV.GUMA.HHE. ML:0.0 0.0007055 0.32 AML other m 2018-08-04T08:27:57.29
IV.FOSV.EHN. ML:0.0 0.000148 0.4 AML other m 2018-08-04T08:27:57.67
IV.FOSV.EHE. ML:0.0 0.000195 0.36 AML other m 2018-08-04T08:27:57.79
IV.FRON.EHN. ML:0.0 0.0001505 0.92 AML other m 2018-08-04T08:27:57.51
IV.FDMO.HHN. ML:0.0 0.000157 0.2 AML other m 2018-08-04T08:27:58.23
IV.MF5.EHE. ML:0.0 0.0006810000000000001 0.2 AML other m 2018-08-04T08:27:58.41
IV.FDMO.HHE. ML:0.0 0.00017099999999999998 0.2 AML other m 2018-08-04T08:27:58.48
IV.MF5.EHN. ML:0.0 0.000508 0.72 AML other m 2018-08-04T08:27:58.78
IV.CAFI.HHE. ML:1.6 0.00003195 1.72 AML other m 2018-08-04T08:27:59.05
IV.CESI.HHN. ML:0.0 0.00015050000000000003 0.62 AML other m 2018-08-04T08:28:01.07
IV.PIEI.HHN. ML:0.0 0.0000608 0.78 AML other m 2018-08-04T08:28:01.31
IV.CESI.HHE. ML:0.0 0.00016900000000000002 0.38 AML other m 2018-08-04T08:28:01.52
IV.ATFO.HHE. ML:0.0 0.00011365 0.92 AML other m 2018-08-04T08:28:01.36
IV.ATCC.EHN. ML:0.0 0.0001265 0.44 AML other m 2018-08-04T08:28:02.26
IV.ATCC.EHE. ML:0.0 0.00012945 1 AML other m 2018-08-04T08:28:02.18
IV.PIEI.HHE. ML:0.0 0.0000883 0.3 AML other m 2018-08-04T08:28:02.76
IV.PE3.EHN. ML:0.0 0.0004365 0.46 AML other m 2018-08-04T08:28:03.58
IV.MURB.HHE. ML:0.0 0.000228 1.26 AML other m 2018-08-04T08:28:03.64
IV.ATFO.HHN. ML:0.0 0.00008545 1.3 AML other m 2018-08-04T08:28:03.19
IV.PE3.EHE. ML:0.0 0.0005835 1.5 AML other m 2018-08-04T08:28:04.02
IV.ATVO.HHE. ML:0.0 0.00006295000000000001 0.74 AML other m 2018-08-04T08:28:04.69
IV.NRCA.HHE. ML:0.0 0.000279 0.4 AML other m 2018-08-04T08:28:04.41
IV.ASSB.HHE. ML:1.8 0.00008295 0.58 AML other m 2018-08-04T08:28:04.38
IV.ASSB.HHN. ML:1.9 0.00010550000000000002 0.22 AML other m 2018-08-04T08:28:05.14
IV.MTRA.EHE. ML:0.0 0.00015 0.7 AML other m 2018-08-04T08:28:05.58
IV.ATVO.HHN. ML:0.0 0.000044999999999999996 0.32 AML other m 2018-08-04T08:28:05.57
IV.MTRA.EHN. ML:0.0 0.00016900000000000002 0.22 AML other m 2018-08-04T08:28:05.59
IV.MURB.HHN. ML:0.0 0.000209 1.08 AML other m 2018-08-04T08:28:05.74
IV.PESA.HHN. ML:2.2 0.000275 0.68 AML other m 2018-08-04T08:28:06.50
IV.NRCA.HHN. ML:0.0 0.0001555 0.9 AML other m 2018-08-04T08:28:06.48
IV.PESA.HHE. ML:2.2 0.000268 0.72 AML other m 2018-08-04T08:28:08.48
IV.PARC.HHE. ML:0.0 0.000051000000000000006 0.96 AML other m 2018-08-04T08:28:08.49
IV.ATTE.HHE. ML:1.4 0.000027249999999999998 0.8 AML other m 2018-08-04T08:28:08.45
IV.PARC.HHN. ML:0.0 0.000058700000000000004 0.5 AML other m 2018-08-04T08:28:09.25
IV.MOMA.HHN. ML:0.0 0.00013145000000000002 0.56 AML other m 2018-08-04T08:28:10.52
OB.GAVE.EHN. ML:1.9 0.00007105 0.7 AML other m 2018-08-04T08:28:10.92
IV.ATTE.HHN. ML:1.5 0.00002835 0.48 AML other m 2018-08-04T08:28:11.46
IV.MOMA.HHE. ML:0.0 0.00007155 0.26 AML other m 2018-08-04T08:28:12.53
IV.CAMP.HHN. ML:0.0 0.000033050000000000004 0.26 AML other m 2018-08-04T08:28:12.57
IV.CAMP.HHE. ML:0.0 0.0000378 0.48 AML other m 2018-08-04T08:28:13.31
IV.CAFI.HHN. ML:1.5 0.0000216 1.44 AML other m 2018-08-04T08:28:19.86
IV.AOI.HHN. ML:2.0 0.00046100000000000004 0.26 AML other m 2018-08-04T08:27:48.84
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