Earthquake with magnitude of ML 2.0 on date 04-08-2018 and time 10:27:37 (Italy) 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) 43.52, 13.44 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.

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

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 ML 2.0 2018-08-04
08:27:37
43.52 13.43 33 2019-04-24
14:50:54
Bollettino Sismico Italiano INGV 60130281
Rev 100 ML 2.0 2018-08-04
08:27:37
43.56 13.49 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 43.52 ± 0.01
Longitude 13.43 ± 0.01
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
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
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

Field Value
Value 2
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

ML:2

Field Value
Value 2
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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance 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 0.875 54 0.83 33
IV.ATVO.HHZ. 2018-08-04T08:28:03.80 0.3 undecidable manual S 260 0.759 107 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 0.7096 108 0.86 35
IV.NRCA.HHZ. 2018-08-04T08:28:02.80 0.6 undecidable manual S 199 0.7267 108 0.29 42
IV.ATCC.EHZ. 2018-08-04T08:28:01.30 0.6 undecidable manual S 240 0.6682 109 0.42 42
IV.LMD.HHZ. 2018-08-04T08:28:01.97 3.0 negative manual P 1.3643 0.89 0
IV.ATFO.HHZ. 2018-08-04T08:28:01.10 0.6 undecidable manual S 256 0.6457 110 0.87 36
IV.CESI.HHZ. 2018-08-04T08:28:00.20 0.6 undecidable manual S 217 0.6448 110 -0.02 46
IV.PIEI.HHZ. 2018-08-04T08:28:00.60 0.3 undecidable manual S 272 0.652 110 0.18 66
IV.MMO1.EHZ. 2018-08-04T08:27:59.90 0.3 undecidable manual S 187 0.6268 111 0.17 66
IV.MF5.EHZ. 2018-08-04T08:27:58.20 0.3 undecidable manual S 178 0.5342 114 1.02 50
IV.FDMO.HHZ. 2018-08-04T08:27:57.30 0.3 undecidable manual S 208 0.5468 114 -0.23 67
IV.FOSV.EHZ. 2018-08-04T08:27:57.30 0.1 undecidable manual S 245 0.5396 114 -0.01 93
IV.CAFI.HHZ. 2018-08-04T08:27:57.88 0.3 undecidable manual P 260 1.0828 54 0.68 51
IV.FRON.EHZ. 2018-08-04T08:27:56.80 0.6 undecidable manual S 270 0.5135 115 0.17 46
IV.GUMA.HHZ. 2018-08-04T08:27:56.20 0.3 undecidable manual S 189 0.4649 118 0.87 55
IV.MOMA.HHZ. 2018-08-04T08:27:55.72 3.0 positive manual P 0.9551 0.29 0
OB.GAVE.EHZ. 2018-08-04T08:27:55.43 3.0 undecidable manual P 0.17 0
IV.CAMP.HHZ. 2018-08-04T08:27:55.72 0.6 undecidable manual P 181 0.9857 54 -0.14 42
IV.PARC.HHZ. 2018-08-04T08:27:54.37 0.1 undecidable manual P 279 0.875 54 0.04 86
IV.ATTE.HHZ. 2018-08-04T08:27:54.84 0.3 undecidable manual P 248 0.8499 54 0.86 50
IV.SNTG.HHZ. 2018-08-04T08:27:54.70 0.6 undecidable manual S 234 0.447 119 -0.18 46
IV.COR1.EHZ. 2018-08-04T08:27:53.60 0.3 undecidable manual S 289 0.3327 128 1.56 41
IV.ARVD.HHZ. 2018-08-04T08:27:52.40 0.1 undecidable manual S 266 0.3579 125 -0.24 92
IV.ATVO.HHZ. 2018-08-04T08:27:52.17 0.3 undecidable manual P 260 0.759 107 -0.34 63
IV.MTRA.EHZ. 2018-08-04T08:27:51.94 0.6 undecidable manual P 182 0.7653 107 -0.68 38
IV.MURB.HHZ. 2018-08-04T08:27:51.45 0.1 undecidable manual P 249 0.7096 108 -0.26 86
IV.NRCA.HHZ. 2018-08-04T08:27:51.38 0.1 negative manual P 199 0.7267 108 -0.61 79
IV.ASSB.HHZ. 2018-08-04T08:27:51.78 0.3 positive manual P -0.59 58
IV.EL6.EHZ. 2018-08-04T08:27:51.30 0.1 undecidable manual S 232 0.3094 130 -0.18 94
IV.PE3.EHZ. 2018-08-04T08:27:51.13 0.6 undecidable manual P 285 0.7006 108 -0.44 41
IV.PIEI.HHZ. 2018-08-04T08:27:50.37 0.3 undecidable manual P 272 0.652 110 -0.41 63
IV.CESI.HHZ. 2018-08-04T08:27:50.11 0.1 positive manual P 217 0.6448 110 -0.55 81
IV.PP3.HNE. 2018-08-04T08:27:50.50 1.0 undecidable manual S 139 0.1916 144 1.39 15
IV.ATCC.EHZ. 2018-08-04T08:27:50.68 0.1 positive manual P 240 0.6682 109 -0.36 85
IV.ATFO.HHZ. 2018-08-04T08:27:50.13 0.6 undecidable manual P 256 0.6457 110 -0.54 41
IV.PESA.HHZ. 2018-08-04T08:27:50.49 0.3 undecidable manual P 314 0.5998 112 0.55 62
IV.CING.HHZ. 2018-08-04T08:27:49.60 0.3 undecidable manual S 230 0.2275 139 -0.15 72
IV.MMO1.EHZ. 2018-08-04T08:27:49.52 0.6 undecidable manual P 187 0.6268 111 -0.86 36
IV.AOI.HHZ. 2018-08-04T08:27:48.40 0.3 undecidable manual S 77 0.1241 155 0.3 73
IV.GUMA.HHZ. 2018-08-04T08:27:48.10 0.3 undecidable manual P 189 0.4649 118 0.26 67
IV.FDMO.HHZ. 2018-08-04T08:27:48.51 0.3 undecidable manual P 208 0.5468 114 -0.6 61
IV.FOSV.EHZ. 2018-08-04T08:27:48.58 0.1 positive manual P 245 0.5396 114 -0.41 86
IV.FRON.EHZ. 2018-08-04T08:27:48.41 0.1 undecidable manual P 270 0.5135 115 -0.18 91
IV.MF5.EHZ. 2018-08-04T08:27:48.98 0.1 undecidable manual P 178 0.5342 114 0.07 92
IV.SNTG.HHZ. 2018-08-04T08:27:47.12 0.1 undecidable manual P 234 0.447 119 -0.46 87
IV.COR1.EHZ. 2018-08-04T08:27:46.21 0.1 undecidable manual P 289 0.3327 128 0.27 93
IV.ARVD.HHZ. 2018-08-04T08:27:45.98 0.1 undecidable manual P 266 0.3579 125 -0.31 91
IV.EL6.EHZ. 2018-08-04T08:27:45.39 0.1 undecidable manual P 232 0.3094 130 -0.23 94
IV.MNTP.HNZ. 2018-08-04T08:27:44.68 1.0 undecidable manual P 176 0.3849 123 -1.99 10
IV.PP3.HNE. 2018-08-04T08:27:44.67 0.1 undecidable manual P 139 0.1916 144 0.42 92
IV.CING.HHZ. 2018-08-04T08:27:44.32 0.1 negative manual P 230 0.2275 139 -0.3 94
IV.AOI.HHZ. 2018-08-04T08:27:43.78 0.1 positive manual P 77 0.1241 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 0.00043 1.22 AML other m 2018-08-04T08:27:49.18
IV.CING.HHE. ML:0 0.0002525 1.74 AML other m 2018-08-04T08:27:49.09
IV.CING.HHN. ML:0 0.000248 1.56 AML other m 2018-08-04T08:27:50.97
IV.EL6.EHE. ML:0 0.000484 0.54 AML other m 2018-08-04T08:27:51.64
IV.EL6.EHN. ML:0 0.000422 0.58 AML other m 2018-08-04T08:27:52.58
IV.ARVD.HHE. ML:0 0.0003015 0.94 AML other m 2018-08-04T08:27:52.71
IV.ARVD.HHN. ML:0 0.0002105 1.24 AML other m 2018-08-04T08:27:53.95
IV.COR1.EHE. ML:0 0.0003261897 0.3008 AML other m 2018-08-04T08:27:54.04
IV.COR1.EHN. ML:0 0.0006845 0.22 AML other m 2018-08-04T08:27:53.90
IV.MNTP.HNN. ML:0 0.00072 0.48 AML other m 2018-08-04T08:27:54.69
IV.MNTP.HNE. ML:0 0.000579 0.8 AML other m 2018-08-04T08:27:55.92
IV.GUMA.HHN. ML:0 0.000671892 0.3392 AML other m 2018-08-04T08:27:57.02
IV.FRON.EHE. ML:0 0.0002415 0.58 AML other m 2018-08-04T08:27:57.50
IV.GUMA.HHE. ML:0 0.0007055 0.32 AML other m 2018-08-04T08:27:57.29
IV.FOSV.EHN. ML:0 0.000148 0.4 AML other m 2018-08-04T08:27:57.67
IV.FOSV.EHE. ML:0 0.000195 0.36 AML other m 2018-08-04T08:27:57.79
IV.FRON.EHN. ML:0 0.0001505 0.92 AML other m 2018-08-04T08:27:57.51
IV.FDMO.HHN. ML:0 0.000157 0.2 AML other m 2018-08-04T08:27:58.23
IV.MF5.EHE. ML:0 0.000681 0.2 AML other m 2018-08-04T08:27:58.41
IV.FDMO.HHE. ML:0 0.000171 0.2 AML other m 2018-08-04T08:27:58.48
IV.MF5.EHN. ML:0 0.000508 0.72 AML other m 2018-08-04T08:27:58.78
IV.CAFI.HHE. ML:1.6 3.195E-5 1.72 AML other m 2018-08-04T08:27:59.05
IV.CESI.HHN. ML:0 0.0001505 0.62 AML other m 2018-08-04T08:28:01.07
IV.PIEI.HHN. ML:0 6.08E-5 0.78 AML other m 2018-08-04T08:28:01.31
IV.CESI.HHE. ML:0 0.000169 0.38 AML other m 2018-08-04T08:28:01.52
IV.ATFO.HHE. ML:0 0.00011365 0.92 AML other m 2018-08-04T08:28:01.36
IV.ATCC.EHN. ML:0 0.0001265 0.44 AML other m 2018-08-04T08:28:02.26
IV.ATCC.EHE. ML:0 0.00012945 1 AML other m 2018-08-04T08:28:02.18
IV.PIEI.HHE. ML:0 8.83E-5 0.3 AML other m 2018-08-04T08:28:02.76
IV.PE3.EHN. ML:0 0.0004365 0.46 AML other m 2018-08-04T08:28:03.58
IV.MURB.HHE. ML:0 0.000228 1.26 AML other m 2018-08-04T08:28:03.64
IV.ATFO.HHN. ML:0 8.545E-5 1.3 AML other m 2018-08-04T08:28:03.19
IV.PE3.EHE. ML:0 0.0005835 1.5 AML other m 2018-08-04T08:28:04.02
IV.ATVO.HHE. ML:0 6.295E-5 0.74 AML other m 2018-08-04T08:28:04.69
IV.NRCA.HHE. ML:0 0.000279 0.4 AML other m 2018-08-04T08:28:04.41
IV.ASSB.HHE. ML:1.8 8.295E-5 0.58 AML other m 2018-08-04T08:28:04.38
IV.ASSB.HHN. ML:1.9 0.0001055 0.22 AML other m 2018-08-04T08:28:05.14
IV.MTRA.EHE. ML:0 0.00015 0.7 AML other m 2018-08-04T08:28:05.58
IV.ATVO.HHN. ML:0 4.5E-5 0.32 AML other m 2018-08-04T08:28:05.57
IV.MTRA.EHN. ML:0 0.000169 0.22 AML other m 2018-08-04T08:28:05.59
IV.MURB.HHN. ML: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 0.0001555 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 5.1E-5 0.96 AML other m 2018-08-04T08:28:08.49
IV.ATTE.HHE. ML:1.4 2.725E-5 0.8 AML other m 2018-08-04T08:28:08.45
IV.PARC.HHN. ML:0 5.87E-5 0.5 AML other m 2018-08-04T08:28:09.25
IV.MOMA.HHN. ML:0 0.00013145 0.56 AML other m 2018-08-04T08:28:10.52
OB.GAVE.EHN. ML:1.9 7.105E-5 0.7 AML other m 2018-08-04T08:28:10.92
IV.ATTE.HHN. ML:1.5 2.835E-5 0.48 AML other m 2018-08-04T08:28:11.46
IV.MOMA.HHE. ML:0 7.155E-5 0.26 AML other m 2018-08-04T08:28:12.53
IV.CAMP.HHN. ML:0 3.305E-5 0.26 AML other m 2018-08-04T08:28:12.57
IV.CAMP.HHE. ML:0 3.78E-5 0.48 AML other m 2018-08-04T08:28:13.31
IV.CAFI.HHN. ML:1.5 2.16E-5 1.44 AML other m 2018-08-04T08:28:19.86
IV.AOI.HHN. ML:2 0.000461 0.26 AML other m 2018-08-04T08:27:48.84
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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 full SEED format Download