Earthquake (quarry blast) with magnitude of ML 1.0 on date 21-08-2018 and time 14:02:05 (UTC) in region 2 km E Genga (AN)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 2 km E Genga (AN), on

  • 21-08-2018 14:02:05 (UTC)
  • 21-08-2018 16:02:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.424, 12.964 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Genga AN 2 1797 1797
Serra San Quirico AN 5 2850 4647
Mergo AN 8 1037 5684
Sassoferrato AN 9 7285 12969
Arcevia AN 9 4612 17581
Rosora AN 11 1985 19566
Fabriano AN 11 31480 51046
Poggio San Vicino MC 11 246 51292
Cerreto d'Esi AN 12 3817 55109
Castelplanio AN 12 3540 58649
Cupramontana AN 13 4756 63405
Poggio San Marcello AN 14 693 64098
Maiolati Spontini AN 14 6248 70346
Apiro MC 14 2280 72626
Montecarotto AN 14 1987 74613
Serra de' Conti AN 15 3746 78359
Monte Roberto AN 16 3061 81420
Castelbellino AN 16 4947 86367
Serra Sant'Abbondio PU 17 1027 87394
San Paolo di Jesi AN 17 933 88327
Staffolo AN 18 2253 90580
Barbara AN 18 1368 91948
Pergola PU 19 6333 98281
Matelica MC 19 9981 108262
Esanatoglia MC 19 2034 110296

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km S of Fano (60888 inhabitants)
50 Km W of Ancona (100861 inhabitants)
54 Km S of Pesaro (94582 inhabitants)
56 Km NE of Foligno (57155 inhabitants)
58 Km NE of Perugia (166134 inhabitants)
78 Km SE of Rimini (147750 inhabitants)
87 Km E of Arezzo (99543 inhabitants)
98 Km SE of Cesena (96758 inhabitants)
99 Km N of Terni (111501 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 1.0 2018-08-21
14:02:05
43.4242 12.9638 1 2019-04-24
14:51:19
Bollettino Sismico Italiano INGV 67251501
Reviewed
Rev100
ML 1.1 2018-08-21
14:02:05
43.4485 13.0153 8 2018-08-21
14:11:28
Sala Sismica INGV-Roma 60043741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-21 14:02:05 ± 0.19
Latitude 43.4242 ± 0.0117
Longitude 12.9638 ± 0.0173
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 67251501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1500
Semi-minor axis of confidence ellipse (meter) 1210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.3975
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 67251501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-04 13:12:15

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 60043741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-21 14:11:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2018-08-21T14:02:14.00 0.1 undecidable manual P 243 0.3579 91 0.27 89
IV.PIEI.HHZ. 2018-08-21T14:02:13.03 0.1 undecidable manual P 290 0.3301 91 -0.1 93
IV.FDMO.HHZ. 2018-08-21T14:02:13.91 0.1 undecidable manual P 167 0.3975 91 -0.72 77
IV.NARO.HHZ. 2018-08-21T14:02:12.65 0.1 undecidable manual P 304 0.3345 91 -0.57 83
IV.SNTG.HHZ. 2018-08-21T14:02:10.20 0.1 undecidable manual P 186 0.17 92 0.64 83
IV.EL6.EHZ. 2018-08-21T14:02:08.82 0.1 undecidable manual P 133 0.1376 92 -0.03 98
IV.ARVD.HHZ. 2018-08-21T14:02:07.88 0.1 positive manual P 348 0.0755 93 0.41 91
IV.MMUR.HNZ. 2018-08-21T14:02:06.47 0.1 undecidable manual P 54 0.0297 99 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMUR.HNN. ML:0 0.017256305 0.064 AML other m 2018-08-21T14:02:07.04
IV.MMUR.HNE. ML:0 0.010452955 0.1856 AML other m 2018-08-21T14:02:07.31
IV.ARVD.HHN. ML:0 0.00013971375 0.0832 AML other m 2018-08-21T14:02:09.58
IV.ARVD.HHE. ML:0 0.0001881041 0.0832 AML other m 2018-08-21T14:02:10.03
IV.EL6.EHE. ML:1 0.000104516905 0.3968 AML other m 2018-08-21T14:02:15.30
IV.FDMO.HHN. ML:1 3.3881625E-5 0.1984 AML other m 2018-08-21T14:02:16.31
IV.FDMO.HHE. ML:1 3.683125E-5 0.16 AML other m 2018-08-21T14:02:16.47
IV.CESI.HHN. ML:1.3 5.274782E-5 0.2176 AML other m 2018-08-21T14:02:16.53
IV.CESI.HHE. ML:1 3.0229375E-5 0.1792 AML other m 2018-08-21T14:02:16.65
IV.SNTG.HNN. ML:1.3 0.00017842035 0.8768 AML other m 2018-08-21T14:02:17.15
IV.EL6.EHN. ML:0.9 9.948336E-5 0.4992 AML other m 2018-08-21T14:02:17.51
IV.SNTG.HHE. ML:0.6 3.28189E-5 0.3776 AML other m 2018-08-21T14:02:18.75
IV.SNTG.HHN. ML:0.6 4.204231E-5 1.4816 AML other m 2018-08-21T14:02:19.92
IV.PIEI.HHE. ML:0.9 3.361298E-5 0.0832 AML other m 2018-08-21T14:02:19.91
IV.PIEI.HHN. ML:0.8 2.2564885E-5 1.8784 AML other m 2018-08-21T14:02:20.99
IV.NARO.HHN. ML:0.6 1.63568715E-5 0.0832 AML other m 2018-08-21T14:02:20.51
IV.MURB.HHN. ML:1.2 6.624388E-5 0.1792 AML other m 2018-08-21T14:02:22.33
IV.MURB.HNN. ML:1.5 0.0001262243 0.6976 AML other m 2018-08-21T14:02:24.50
IV.MURB.HNE. ML:1.4 8.6239015E-5 0.4544 AML other m 2018-08-21T14:02:24.37
IV.MURB.HHE. ML:1.2 5.77941E-5 1.5392 AML other m 2018-08-21T14:02:26.85
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