Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.7 on date 10-09-2021 and time 13:43:07 (Italy) in region 4 km SW Serra San Quirico (AN)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 4 km SW Serra San Quirico (AN), on

  • 10-09-2021 11:43:07 (UTC)
  • 10-09-2021 13:43:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4250, 12.9840 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 4 2850 2850
Genga AN 4 1797 4647
Mergo AN 7 1037 5684
Arcevia AN 9 4612 10296
Poggio San Vicino MC 10 246 10542
Rosora AN 10 1985 12527
Sassoferrato AN 10 7285 19812
Cupramontana AN 11 4756 24568
Castelplanio AN 11 3540 28108
Cerreto d'Esi AN 12 3817 31925
Fabriano AN 12 31480 63405
Poggio San Marcello AN 12 693 64098
Apiro MC 13 2280 66378
Maiolati Spontini AN 13 6248 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 17 2253 89553
Barbara AN 18 1368 90921
Serra Sant'Abbondio PU 19 1027 91948
Matelica MC 19 9981 101929
Esanatoglia MC 19 2034 103963
Pergola PU 19 6333 110296
Cingoli MC 20 10352 120648

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 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 0.7 2021-09-10
11:43:07		 43.4253 12.9835 1 2022-03-30
13:04:39		 Bollettino Sismico Italiano INGV 101410141
Reviewed
Rev100 		ML 0.7 2021-09-10
11:43:07		 43.4418 12.9995 2 2021-09-10
11:48:04		 Sala Sismica INGV-Roma 95264331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-10 11:43:07 ± 0.08
Latitude 43.4253 ± 0.0054
Longitude 12.9835 ± 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 101410141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 490
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) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.01889
Epicentral distance of station farthest from the epicenter (degree) 0.37052
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:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 95264331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-10 11:48:04

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 101410141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-24 12:20:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-09-10T11:43:15.36 0.3 undecidable manual P 154 41.1255 91 -0.23 67
IV.NARO.HHZ. 2021-09-10T11:43:14.67 0.3 undecidable manual P 303 38.4282 91 -0.38 65
IV.FRON.EHZ. 2021-09-10T11:43:12.20 0.3 undecidable manual P 296 23.1546 91 0.21 69
IV.SNTG.HHZ. 2021-09-10T11:43:11.42 0.3 undecidable manual P 190 19.2696 91 0.22 70
IV.CING.HHZ. 2021-09-10T11:43:11.07 0.3 undecidable manual P 108 17.9709 92 0.12 71
IV.EL6.EHZ. 2021-09-10T11:43:10.16 0.3 undecidable manual P 138 14.2746 92 -0.06 73
IV.ARVD.HHZ. 2021-09-10T11:43:09.19 0.1 undecidable manual P 337 8.7801 93 0.08 97
IV.MMUR.HNZ. 2021-09-10T11:43:07.79 0.1 positive manual P 31 2.0979 103 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CING.HHE. ML:0.6 0.0000337 0.52 AML other m 2021-09-10T11:43:14.94
IV.CING.HHN. ML:0.6 0.00003565 1.5 AML other m 2021-09-10T11:43:14.97
IV.FRON.EHN. ML:0.4 0.000021547364999999997 1.1008 AML other m 2021-09-10T11:43:16.76
IV.FRON.EHE. ML:0.4 0.00002048358 0.48 AML other m 2021-09-10T11:43:16.43
IV.FDMO.HHN. ML:1.0 0.0000349 0.46 AML other m 2021-09-10T11:43:18.47
IV.FDMO.HHE. ML:1.1 0.000038350000000000004 0.08 AML other m 2021-09-10T11:43:18.73
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