Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.1 on date 24-11-2021 and time 09:09:37 (Italy) in region 4 km S Cagli (PU)

A magnitude ML 0.1 (quarry blast) earthquake occured in region: 4 km S Cagli (PU), on

  • 24-11-2021 08:09:37 (UTC)
  • 24-11-2021 09:09:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5140, 12.6520 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
Cagli PU 4 8731 8731
Cantiano PU 5 2245 10976
Frontone PU 7 1300 12276
Serra Sant'Abbondio PU 10 1027 13303
Acqualagna PU 12 4393 17696
Scheggia e Pascelupo PG 12 1393 19089
Piobbico PU 14 2029 21118
Pergola PU 16 6333 27451
Costacciaro PG 18 1216 28667
Fermignano PU 18 8596 37263
Gubbio PG 19 32216 69479
Sassoferrato AN 19 7285 76764
Pietralunga PG 19 2111 78875
Apecchio PU 19 1882 80757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km SW of Fano (60888 inhabitants)
49 Km SW of Pesaro (94582 inhabitants)
50 Km NE of Perugia (166134 inhabitants)
61 Km S of Rimini (147750 inhabitants)
62 Km N of Foligno (57155 inhabitants)
62 Km E of Arezzo (99543 inhabitants)
71 Km W of Ancona (100861 inhabitants)
77 Km SE of Cesena (96758 inhabitants)
93 Km SE of Forlì (117913 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 0.1 2021-11-24
08:09:37		 43.514 12.6522 1 2022-03-30
13:04:24		 Bollettino Sismico Italiano INGV 98893911
Reviewed
Rev100 		ML 0.8 2021-11-24
08:09:37		 43.4973 12.6377 6 2021-11-24
08:35:07		 Sala Sismica INGV-Roma 97742311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-24 08:09:37 ± 0.12
Latitude 43.5140 ± 0.0090
Longitude 12.6522 ± 0.0099
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 98893911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1010
Semi-minor axis of confidence ellipse (meter) 720
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.0
Num. used stations 1
Type of magnitude ML
Reference to an origin 98893911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-10 15:34:48

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 97742311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-24 08:35:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.NSC3.EHZ.02 2021-11-24T08:11:21.38 3.0 undecidable manual Sg 9.77 0
IV.ILOS.HHZ. 2021-11-24T08:11:08.18 3.0 negative manual Pg 13.19 0
IV.CDRU.HHZ. 2021-11-24T08:11:06.13 3.0 undecidable manual Sn -9.99 0
IV.SERS.HHZ. 2021-11-24T08:11:06.32 3.0 undecidable manual Pg 9.68 0
OT.OT17.EHZ. 2021-11-24T08:11:04.56 3.0 undecidable manual Sg 5.23 0
IV.IVUG.HHZ. 2021-11-24T08:11:03.42 3.0 positive manual Pg 7.65 0
IV.HVIT.HHZ. 2021-11-24T08:11:02.75 3.0 undecidable manual Pn -9.75 0
IT.ORP.HGZ. 2021-11-24T08:11:00.05 3.0 undecidable manual Sn -5.03 0
IV.GATE.HHZ. 2021-11-24T08:10:58.94 3.0 undecidable manual Sg 2.46 0
GU.GENL.EHZ. 2021-11-24T08:10:49.43 3.0 undecidable manual Sg 16.02 0
RD.PGF.BHZ. 2021-11-24T08:10:40.50 3.0 undecidable manual Sn -0.71 0
IV.STAL.HNZ. 2021-11-24T08:10:37.37 3.0 undecidable manual Sn -0.67 0
IV.SGO.HHZ. 2021-11-24T08:10:35.68 3.0 undecidable manual Pg 4.57 0
IX.RSF3.HHZ.02 2021-11-24T08:10:34.89 3.0 undecidable manual Pg 9.04 0
IV.PAOL.HHZ. 2021-11-24T08:10:26.93 3.0 undecidable manual Pg 5.5 0
IV.SARZ.HNZ. 2021-11-24T08:10:21.36 3.0 undecidable manual Pg 13.56 0
IV.LPEL.HHZ. 2021-11-24T08:10:13.56 3.0 undecidable manual Pg 5.7 0
IV.RIBO.EHZ.01 2021-11-24T08:09:47.28 3.0 positive manual Pn -3.13 0
IV.MTRZ.HNZ. 2021-11-24T08:09:45.36 3.0 undecidable manual P 3.67 0
IV.EL6.EHZ. 2021-11-24T08:09:45.39 0.1 undecidable manual P 119 41.625 91 -0.65 81
IV.PARC.HHZ. 2021-11-24T08:09:44.49 0.3 undecidable manual P 294 36.4413 91 -0.52 64
IV.CSNT.HHZ. 2021-11-24T08:09:42.68 3.0 positive manual P 0.03 0
IV.ATPC.HHE. 2021-11-24T08:09:41.17 0.1 undecidable manual P 257 16.1727 92 0.23 95
IV.MPAG.EHZ. 2021-11-24T08:09:41.03 0.1 undecidable manual P 34 15.3735 92 0.23 95
IV.NARO.HHZ. 2021-11-24T08:09:40.08 0.1 undecidable manual P 332 12.1767 92 -0.07 99
IV.SSFR.HHN. 2021-11-24T08:09:40.51 0.3 undecidable manual P 129 13.5753 92 0.08 74
IV.ATSC.EHE. 2021-11-24T08:09:39.77 0.1 undecidable manual P 165 10.3785 93 -0.01 100
IV.PIEI.HHZ. 2021-11-24T08:09:39.49 0.1 undecidable manual P 284 9.6792 93 -0.17 97
IV.ATBU.EHZ. 2021-11-24T08:09:39.93 0.1 undecidable manual P 243 9.3795 93 0.34 94
IV.FRON.EHZ. 2021-11-24T08:09:39.21 0.1 undecidable manual P 86 5.8941 95 0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHN. ML:0.0 0.0002227899 0.1408 AML other m 2021-11-24T08:09:41.51
IV.PIEI.HHN. ML:0.6 0.00006559881000000001 0.2816 AML other m 2021-11-24T08:09:42.73
IV.FRON.EHE. ML:0.0 0.00017653615 0.1216 AML other m 2021-11-24T08:09:40.82
IV.PIEI.HHE. ML:0.9 0.000091279013 0.096 AML other m 2021-11-24T08:09:41.80
IV.PIEI.HNE. ML:0.0 0.00009643704 0.096 AML other m 2021-11-24T08:09:41.80
IV.NARO.HHN. ML:0.1 0.00002020629865 0.0576 AML other m 2021-11-24T08:09:47.45
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