Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.3 on date 21-10-2020 and time 10:53:42 (Italy) in region 6 km N Cerreto d'Esi (AN)

A magnitude ML 1.3 (quarry blast) earthquake occured in region: 6 km N Cerreto d'Esi (AN), on

  • 21-10-2020 08:53:42 (UTC)
  • 21-10-2020 10:53:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3770, 12.9750 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
Cerreto d'Esi AN 6 3817 3817
Genga AN 7 1797 5614
Fabriano AN 7 31480 37094
Poggio San Vicino MC 9 246 37340
Serra San Quirico AN 9 2850 40190
Sassoferrato AN 12 7285 47475
Mergo AN 12 1037 48512
Apiro MC 13 2280 50792
Matelica MC 14 9981 60773
Cupramontana AN 14 4756 65529
Esanatoglia MC 14 2034 67563
Arcevia AN 14 4612 72175
Rosora AN 14 1985 74160
Castelplanio AN 16 3540 77700
Maiolati Spontini AN 16 6248 83948
Gagliole MC 17 620 84568
Poggio San Marcello AN 17 693 85261
Monte Roberto AN 18 3061 88322
Staffolo AN 18 2253 90575
San Paolo di Jesi AN 18 933 91508
Montecarotto AN 18 1987 93495
Castelbellino AN 19 4947 98442
Serra de' Conti AN 19 3746 102188
Fossato di Vico PG 19 2840 105028
Sigillo PG 20 2404 107432
Cingoli MC 20 10352 117784
Castelraimondo MC 20 4587 122371

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km SW of Ancona (100861 inhabitants)
52 Km NE of Foligno (57155 inhabitants)
52 Km S of Fano (60888 inhabitants)
56 Km NE of Perugia (166134 inhabitants)
60 Km S of Pesaro (94582 inhabitants)
83 Km SE of Rimini (147750 inhabitants)
89 Km E of Arezzo (99543 inhabitants)
95 Km N of Terni (111501 inhabitants)
99 Km NW of Teramo (54892 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 1.3 2020-10-21
08:53:42		 43.3768 12.9752 1 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87183151
Reviewed
Rev100 		ML 1.3 2020-10-21
08:53:42		 43.4112 13.0297 8 2020-10-21
09:00:31		 Sala Sismica INGV-Roma 83983061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-21 08:53:42 ± 0.12
Latitude 43.3768 ± 0.0072
Longitude 12.9752 ± 0.0124
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 87183151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1020
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59895
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 83983061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-21 09:00:31

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 87183151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-15 14:50:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2020-10-21T08:54:28.80 3.0 undecidable manual S 2.97 0
IV.PARC.HHZ. 2020-10-21T08:53:55.05 0.3 undecidable manual P 297 66.4779 50 -0.22 66
IV.NRCA.HHZ. 2020-10-21T08:53:53.55 0.3 undecidable manual P 169 61.2942 50 -0.92 53
IV.MC2.EHZ. 2020-10-21T08:53:52.57 0.3 undecidable manual P 161 54.501 91 -0.59 61
IV.MURB.HHZ. 2020-10-21T08:53:50.37 0.3 undecidable manual P 251 38.5281 91 0.41 66
IV.CESI.HHZ. 2020-10-21T08:53:50.48 0.1 undecidable manual P 188 41.625 91 -0.11 94
IV.CSP1.EHZ. 2020-10-21T08:53:49.51 0.3 undecidable manual P 150 36.6411 91 -0.09 71
IV.FDMO.HHZ. 2020-10-21T08:53:49.89 0.3 undecidable manual P 166 38.8278 91 -0.14 70
IV.MPAG.EHZ. 2020-10-21T08:53:48.57 0.3 undecidable manual P 328 32.9448 91 -0.28 69
IV.FRON.EHZ. 2020-10-21T08:53:47.35 0.3 undecidable manual P 308 25.4523 91 0 74
IV.SSFR.HHZ. 2020-10-21T08:53:46.13 0.1 undecidable manual P 293 16.872 92 0.5 90
IV.SNTG.HHZ. 2020-10-21T08:53:46.04 0.1 positive manual P 192 13.7751 92 1.02 73
IV.CING.HNZ. 2020-10-21T08:53:45.96 0.1 undecidable manual P 90 17.7711 92 0.15 97
IV.FOSV.EHZ. 2020-10-21T08:53:45.69 0.1 undecidable manual P 242 19.5693 91 -0.47 90
IV.ARVD.HHZ. 2020-10-21T08:53:44.96 0.1 positive manual P 349 13.6752 92 -0.04 100
IV.EL6.EHZ. 2020-10-21T08:53:44.96 0.1 undecidable manual P 117 11.4774 92 0.41 93
IV.MMUR.HNZ. 2020-10-21T08:53:43.64 0.1 undecidable manual P 14 7.3815 94 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.1 0.000151 0.8 AML other m 2020-10-21T08:53:47.56
IV.ARVD.HHE. ML:1.1 0.00016949999999999997 1.86 AML other m 2020-10-21T08:53:47.96
IV.EL6.EHE. ML:1.4 0.000413 0.88 AML other m 2020-10-21T08:53:49.52
IV.EL6.EHN. ML:1.5 0.000588 0.36 AML other m 2020-10-21T08:53:49.55
IV.SNTG.HNN. ML:1.3 0.0002498694 0.16 AML other m 2020-10-21T08:53:49.50
IV.SNTG.HHN. ML:1.3 0.000252 0.46 AML other m 2020-10-21T08:53:49.59
IV.SNTG.HNE. ML:1.1 0.00016203409999999998 0.2112 AML other m 2020-10-21T08:53:49.84
IV.SNTG.HHE. ML:1.1 0.000155 0.2 AML other m 2020-10-21T08:53:49.74
IV.SSFR.HNE. ML:1.4 0.00023753775 0.16 AML other m 2020-10-21T08:53:49.88
IV.SSFR.HNN. ML:1.3 0.0002130613 0.0896 AML other m 2020-10-21T08:53:49.99
IV.FOSV.EHE. ML:0.9 0.00006620000000000001 0.22 AML other m 2020-10-21T08:53:50.85
IV.FOSV.EHN. ML:1.0 0.0000802 1.76 AML other m 2020-10-21T08:53:50.09
IV.SSFR.HHN. ML:1.4 0.00023899999999999998 0.9 AML other m 2020-10-21T08:53:52.08
IV.FRON.EHE. ML:1.1 0.00007905000000000001 0.34 AML other m 2020-10-21T08:53:52.79
IV.FRON.EHN. ML:1.2 0.0001038 1.62 AML other m 2020-10-21T08:53:53.87
IV.SSFR.HHE. ML:1.3 0.000214 1.58 AML other m 2020-10-21T08:53:53.16
IV.MPAG.EHN. ML:1.0 0.0000452 0.58 AML other m 2020-10-21T08:53:54.66
IV.MPAG.EHE. ML:1.0 0.00004289999999999999 0.66 AML other m 2020-10-21T08:53:56.46
IV.FDMO.HHE. ML:1.5 0.0001235 0.16 AML other m 2020-10-21T08:53:57.49
IV.MURB.HHE. ML:1.8 0.000214 0.74 AML other m 2020-10-21T08:53:57.61
IV.FDMO.HHN. ML:1.4 0.00009065000000000001 1.84 AML other m 2020-10-21T08:53:58.92
IV.CESI.HHE. ML:1.0 0.0000373 0.9 AML other m 2020-10-21T08:53:58.64
IV.MURB.HHN. ML:1.8 0.0002405 0.26 AML other m 2020-10-21T08:53:58.71
IV.CESI.HHN. ML:1.1 0.00003915 0.22 AML other m 2020-10-21T08:54:01.92
IV.NRCA.HHN. ML:1.5 0.00006934999999999999 0.64 AML other m 2020-10-21T08:54:04.86
IV.NRCA.HHE. ML:1.5 0.0000578 0.6 AML other m 2020-10-21T08:54:04.66
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