Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.7 on date 27-10-2021 and time 09:04:30 (UTC) in region 5 km SW Serrapetrona (MC)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 5 km SW Serrapetrona (MC), on

  • 27-10-2021 09:04:30 (UTC)
  • 27-10-2021 11:04:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1480, 13.1480 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
Serrapetrona MC 5 966 966
Caldarola MC 7 1823 2789
Camerino MC 7 6974 9763
Belforte del Chienti MC 8 1886 11649
San Severino Marche MC 9 12726 24375
Camporotondo di Fiastrone MC 10 563 24938
Cessapalombo MC 10 512 25450
Castelraimondo MC 10 4587 30037
Pievebovigliana MC 11 866 30903
Muccia MC 11 915 31818
Gagliole MC 12 620 32438
Fiastra MC 12 559 32997
Fiordimonte MC 13 202 33199
Tolentino MC 13 20069 53268
Acquacanina MC 13 121 53389
Pioraco MC 14 1134 54523
Pieve Torina MC 14 1458 55981
San Ginesio MC 14 3498 59479
Sefro MC 16 422 59901
Matelica MC 17 9981 69882
Colmurano MC 17 1263 71145
Sarnano MC 18 3264 74409
Gualdo MC 18 815 75224
Ripe San Ginesio MC 18 852 76076
Serravalle di Chienti MC 18 1070 77146
Fiuminata MC 18 1402 78548
Bolognola MC 18 142 78690
Urbisaglia MC 19 2628 81318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Foligno (57155 inhabitants)
60 Km SW of Ancona (100861 inhabitants)
62 Km E of Perugia (166134 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
77 Km NE of Terni (111501 inhabitants)
78 Km S of Fano (60888 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
91 Km N of L'Aquila (69753 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 2021-10-27
09:04:30		 43.148 13.1483 1 2022-03-30
13:04:38		 Bollettino Sismico Italiano INGV 101077811
Reviewed
Rev100 		ML 0.7 2021-10-27
09:04:30		 43.1473 13.1645 5 2021-10-27
09:16:12		 Sala Sismica INGV-Roma 97018281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-27 09:04:30 ± 0.08
Latitude 43.1480 ± 0.0045
Longitude 13.1483 ± 0.0086
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 101077811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 700
Semi-minor axis of confidence ellipse (meter) 470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31566
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
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 101077811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-17 10:19:03

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 97018281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-27 09:16:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LADO.EHZ. 2021-10-27T09:06:14.19 3.0 undecidable manual Sn -2.55 0
IV.VOBA.EHZ. 2021-10-27T09:06:12.52 3.0 undecidable manual Sg 17.639999 0
IV.IFIL.HHZ. 2021-10-27T09:06:09.88 3.0 undecidable manual Sn -4.83 0
IV.FREG.HNZ. 2021-10-27T09:05:50.28 3.0 undecidable manual Sn 1.27 0
IV.ESCV.HHZ. 2021-10-27T09:05:49.52 3.0 negative manual Pg 13.04 0
IV.VENL.EHZ. 2021-10-27T09:05:48.53 3.0 undecidable manual Sg 13.62 0
SI.ROSI.HHZ. 2021-10-27T09:05:37.08 3.0 negative manual Pg 11.96 0
IX.SCL3.EHZ.02 2021-10-27T09:05:35.26 3.0 undecidable manual Sn 2.25 0
AC.PUK.HHZ. 2021-10-27T09:05:34.88 3.0 undecidable manual Pn 3.28 0
IV.ZEN8.EHZ. 2021-10-27T09:05:26.88 3.0 undecidable manual Pg 14.35 0
IV.RIBO.EHZ.01 2021-10-27T09:05:23.42 3.0 undecidable manual Sg 10.51 0
IV.LADO.EHZ. 2021-10-27T09:05:23.75 3.0 negative manual Pn -2.43 0
IV.COLB.HHZ. 2021-10-27T09:05:19.29 3.0 undecidable manual Sn -0.49 0
IV.VOBA.EHZ. 2021-10-27T09:05:11.64 3.0 undecidable manual Pn -2.26 0
IV.MNTV.EHZ. 2021-10-27T09:05:06.49 3.0 positive manual Pn -0.48 0
IV.CMPR.HHZ. 2021-10-27T09:05:02.77 3.0 positive manual Pn -2.07 0
IT.RMMM.HGZ. 2021-10-27T09:04:59.77 3.0 undecidable manual Sn 0.96 0
IV.RIBO.EHZ.01 2021-10-27T09:04:49.50 3.0 undecidable manual Pn -0.82 0
IV.GATE.HHZ. 2021-10-27T09:04:49.35 3.0 negative manual Pn 0.19 0
IV.PE3.EHZ. 2021-10-27T09:04:41.85 3.0 positive manual Pn 0.19 0
IV.MF5.EHZ. 2021-10-27T09:04:37.20 0.3 undecidable manual P 125 30.8469 91 0.12 94
IV.NRCA.HNZ. 2021-10-27T09:04:37.39 0.3 undecidable manual P 185 35.0427 91 -0.52 85
IV.MC2.EHZ. 2021-10-27T09:04:36.41 0.3 undecidable manual P 173 26.4513 91 0.21 93
IV.SNTG.HHZ. 2021-10-27T09:04:35.02 0.3 undecidable manual P 305 20.5683 91 0 98
IV.CING.HNE. 2021-10-27T09:04:35.68 0.3 undecidable manual P 9 25.5522 91 -0.33 90
IV.EL6.EHZ. 2021-10-27T09:04:34.93 0.3 undecidable manual P 349 20.4684 91 -0.07 96
IV.MML1.EHZ. 2021-10-27T09:04:34.05 0.3 undecidable manual P 255 14.7741 92 0.19 95
IV.FDMO.HHZ. 2021-10-27T09:04:33.54 0.3 undecidable manual P 202 13.2756 92 -0.03 98
IV.MDAR.HNE. 2021-10-27T09:04:32.18 0.3 undecidable manual P 355 4.995 96 0.28 95
IV.CSP1.EHZ. 2021-10-27T09:04:32.51 0.3 undecidable manual P 144 7.6812 94 0.06 99
IV.PF6.EHE. 2021-10-27T09:04:31.71 0.3 undecidable manual P 107 3.8961 97 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.5 0.000040372655 0.1792 AML other m 2021-10-27T09:04:36.28
IV.MML1.EHN. ML:0.8 0.000080061865 1.7824 AML other m 2021-10-27T09:04:36.93
IV.FDMO.HHE. ML:0.5 0.00004495311 0.2048 AML other m 2021-10-27T09:04:37.88
IV.MML1.EHE. ML:0.4 0.000031181305 1.7568 AML other m 2021-10-27T09:04:38.12
IV.EL6.EHE. ML:0.9 0.00007110115 0.16 AML other m 2021-10-27T09:04:38.83
IV.EL6.EHN. ML:1.2 0.00011583594999999999 0.2368 AML other m 2021-10-27T09:04:39.63
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