Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.8 on date 02-09-2021 and time 09:27:06 (UTC) in region 3 km SW Serra San Quirico (AN)

A magnitude ML 0.8 (quarry blast) earthquake occured in region: 3 km SW Serra San Quirico (AN), on

  • 02-09-2021 09:27:06 (UTC)
  • 02-09-2021 11:27:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4320, 12.9880 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 6 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 10 3540 23352
Cupramontana AN 11 4756 28108
Poggio San Marcello AN 12 693 28801
Maiolati Spontini AN 12 6248 35049
Cerreto d'Esi AN 12 3817 38866
Apiro MC 12 2280 41146
Montecarotto AN 12 1987 43133
Fabriano AN 12 31480 74613
Serra de' Conti AN 13 3746 78359
Monte Roberto AN 13 3061 81420
Castelbellino AN 14 4947 86367
San Paolo di Jesi AN 15 933 87300
Staffolo AN 16 2253 89553
Barbara AN 17 1368 90921
Serra Sant'Abbondio PU 19 1027 91948
Pergola PU 19 6333 98281
Matelica MC 19 9981 108262
Cingoli MC 20 10352 118614
San Lorenzo in Campo PU 20 3414 122028
Castelleone di Suasa AN 20 1676 123704
Ostra Vetere AN 20 3311 127015

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)
58 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)
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 0.8 2021-09-02
09:27:06		 43.4315 12.9885 1 2022-03-30
13:04:25		 Bollettino Sismico Italiano INGV 99279581
Reviewed
Rev100 		ML 0.8 2021-09-02
09:27:06		 43.4367 13.0177 4 2021-09-02
09:39:49		 Sala Sismica INGV-Roma 94954361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-02 09:27:06 ± 0.12
Latitude 43.4315 ± 0.0072
Longitude 12.9885 ± 0.0087
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 99279581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 810
Semi-minor axis of confidence ellipse (meter) 680
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.01259
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 94954361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-02 09:39:49

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 99279581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-03 10:44:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2021-09-02T09:27:12.09 0.3 undecidable manual P 320 28.6491 91 -0.34 68
IV.FRON.EHZ. 2021-09-02T09:27:11.51 0.6 undecidable manual P 294 23.2545 91 0.16 47
IV.ATSC.EHZ. 2021-09-02T09:27:11.48 0.6 undecidable manual P 268 24.3534 91 -0.09 48
IV.SSFR.HHZ. 2021-09-02T09:27:10.22 0.3 undecidable manual P 272 16.6722 92 0.19 71
IV.EL6.EHZ. 2021-09-02T09:27:09.50 0.6 negative manual P 141 14.5743 92 -0.11 49
IV.ARVD.HHZ. 2021-09-02T09:27:08.38 0.1 undecidable manual P 333 8.2806 93 0.02 100
IV.MMUR.HNZ. 2021-09-02T09:27:07.09 0.1 undecidable manual P 32 1.3986 110 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.EHE. ML:0.7 0.00003195 0.44 AML other m 2021-09-02T09:27:13.40
IV.EL6.EHE. ML:1.0 0.000135991915 0.3968 AML other m 2021-09-02T09:27:14.67
IV.EL6.EHN. ML:0.9 0.00009340066199999999 0.32 AML other m 2021-09-02T09:27:15.73
IV.FRON.EHE. ML:0.7 0.000034925114999999996 0.32 AML other m 2021-09-02T09:27:16.44
IV.FRON.EHN. ML:0.7 0.000035515865 0.256 AML other m 2021-09-02T09:27:16.38
IV.MPAG.EHN. ML:0.9 0.00003755 0.86 AML other m 2021-09-02T09:27:20.57
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