Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.1 on date 31-08-2017 and time 17:16:33 (Italy) in region 3 km SW Serra San Quirico (AN)

A magnitude ML 1.1 (quarry blast) earthquake occured in region: 3 km SW Serra San Quirico (AN), on

  • 31-08-2017 15:16:33 (UTC)
  • 31-08-2017 17:16:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4280, 12.9850 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.

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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
Serra San Quirico AN 3 2850 2850
Genga AN 4 1797 4647
Mergo AN 7 1037 5684
Arcevia AN 9 4612 10296
Rosora AN 9 1985 12281
Poggio San Vicino MC 10 246 12527
Sassoferrato AN 10 7285 19812
Castelplanio AN 11 3540 23352
Cupramontana AN 11 4756 28108
Cerreto d'Esi AN 12 3817 31925
Fabriano AN 12 31480 63405
Poggio San Marcello AN 12 693 64098
Maiolati Spontini AN 12 6248 70346
Apiro MC 13 2280 72626
Montecarotto AN 13 1987 74613
Serra de' Conti AN 14 3746 78359
Monte Roberto AN 14 3061 81420
Castelbellino AN 15 4947 86367
San Paolo di Jesi AN 16 933 87300
Staffolo AN 16 2253 89553
Barbara AN 17 1368 90921
Serra Sant'Abbondio PU 19 1027 91948
Matelica MC 19 9981 101929
Pergola PU 19 6333 108262
Esanatoglia MC 20 2034 110296
Cingoli MC 20 10352 120648
San Lorenzo in Campo PU 20 3414 124062
Castelleone di Suasa AN 20 1676 125738

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km S of Fano (60888 inhabitants)
48 Km W of Ancona (100861 inhabitants)
54 Km S of Pesaro (94582 inhabitants)
57 Km NE of Foligno (57155 inhabitants)
60 Km NE of Perugia (166134 inhabitants)
78 Km SE of Rimini (147750 inhabitants)
89 Km E of Arezzo (99543 inhabitants)
99 Km SE of Cesena (96758 inhabitants)
100 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 1.1 2017-08-31
15:16:33		 43.4278 12.9847 1 2018-07-06
15:40:36		 Bollettino Sismico Italiano INGV 52519971
Reviewed
Rev100 		ML 1.2 2017-08-31
15:16:34		 43.4392 12.9938 2 2017-08-31
15:27:46		 Sala Sismica INGV-Roma 49546101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-31 15:16:33 ± 0.08
Latitude 43.4278 ± 0.0054
Longitude 12.9847 ± 0.0074
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 52519971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 660
Semi-minor axis of confidence ellipse (meter) 490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34354
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 52519971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-12-11 11:31:34

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 49546101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-31 15:27:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.USI.HHZ. 2017-08-31T15:18:00.43 3.0 undecidable manual Sg 5.87 0
GU.POPM.HHZ. 2017-08-31T15:17:52.83 3.0 undecidable manual Sg 6.78 0
IV.IMI.HHZ. 2017-08-31T15:17:50.37 3.0 undecidable manual Pg 21.57 0
IV.CSNT.HHZ. 2017-08-31T15:17:34.39 3.0 undecidable manual Sg 2.92 0
IV.ZONE.HHZ. 2017-08-31T15:17:33.20 3.0 undecidable manual Pg 11.16 0
IV.EUCT.HNZ. 2017-08-31T15:17:27.87 3.0 negative manual Pn 3.1 0
IV.LEOD.HNZ. 2017-08-31T15:17:27.73 3.0 undecidable manual Pg 8.55 0
IV.GMB.BHZ. 2017-08-31T15:17:07.70 3.0 undecidable manual Pn -5.22 0
IV.FSSB.HHZ. 2017-08-31T15:16:40.36 1.0 undecidable manual P 331 33.8439 91 -0.28 22
IV.PIEI.HHZ. 2017-08-31T15:16:40.87 1.0 undecidable manual P 288 38.1285 91 -0.63 20
IV.FRON.EHZ. 2017-08-31T15:16:38.40 0.6 undecidable manual P 296 23.0547 91 -0.1 47
IV.SSFR.HHZ. 2017-08-31T15:16:37.52 0.6 undecidable manual P 273 16.3725 92 0.38 45
IV.CING.HHZ. 2017-08-31T15:16:37.45 0.6 undecidable manual P 109 17.9709 92 -0.02 49
IV.SNTG.HHZ. 2017-08-31T15:16:37.73 0.6 undecidable manual P 191 19.4694 91 -0.05 48
IV.EL6.EHZ. 2017-08-31T15:16:36.76 0.3 undecidable manual P 139 14.4744 92 0 74
IV.ARVD.HHZ. 2017-08-31T15:16:35.65 0.1 undecidable manual P 336 8.4804 93 0.07 98
IV.MMUR.HNZ. 2017-08-31T15:16:34.27 0.1 undecidable manual P 34 1.8981 105 0.02 100
IV.LIK.EHZ.01 2017-08-31T15:16:27.59 3.0 positive manual P -5.09 0
IV.VVLD.HHZ. 2017-08-31T15:16:23.22 3.0 undecidable manual P -5.65 0
IV.SACR.HHZ. 2017-08-31T15:16:19.90 3.0 undecidable manual P -6.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:0.9 0.0000664 0.9 AML other m 2017-08-31T15:16:41.39
IV.CING.HHE. ML:0.9 0.00007875 1 AML other m 2017-08-31T15:16:41.53
IV.CING.HHN. ML:0.9 0.0000821 0.24 AML other m 2017-08-31T15:16:41.56
IV.SSFR.HNN. ML:1.5 0.000359 0.16 AML other m 2017-08-31T15:16:41.64
IV.SSFR.HHN. ML:1.4 0.000275 0.08 AML other m 2017-08-31T15:16:41.60
IV.SSFR.HHE. ML:1.3 0.00022200000000000003 1.26 AML other m 2017-08-31T15:16:41.29
IV.SSFR.HNE. ML:1.5 0.00032950000000000004 1 AML other m 2017-08-31T15:16:42.57
IV.FRON.EHN. ML:1.1 0.00008484999999999999 0.22 AML other m 2017-08-31T15:16:43.61
IV.FRON.EHE. ML:1.0 0.0000729 1.24 AML other m 2017-08-31T15:16:44.94
IV.SNTG.HHN. ML:1.1 0.0000995 0.48 AML other m 2017-08-31T15:16:45.66
IV.FSSB.HHN. ML:1.3 0.00008835 0.24 AML other m 2017-08-31T15:16:46.83
IV.FSSB.HHE. ML:1.3 0.00008010000000000001 0.4 AML other m 2017-08-31T15:16:47.20
IV.PIEI.HHE. ML:1.1 0.000047550000000000004 0.1 AML other m 2017-08-31T15:16:47.43
IV.PIEI.HHN. ML:0.8 0.00002615 0.84 AML other m 2017-08-31T15:16:47.43
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