Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.5 on date 20-12-2021 and time 12:37:43 (UTC) in region 6 km S Cingoli (MC)

A magnitude ML 1.5 (quarry blast) earthquake occured in region: 6 km S Cingoli (MC), on

  • 20-12-2021 12:37:43 (UTC)
  • 20-12-2021 13:37:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3250, 13.2190 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
Cingoli MC 6 10352 10352
Treia MC 8 9403 19755
Apiro MC 10 2280 22035
San Severino Marche MC 11 12726 34761
Appignano MC 11 4213 38974
Pollenza MC 12 6618 45592
Staffolo AN 12 2253 47845
Poggio San Vicino MC 13 246 48091
Tolentino MC 14 20069 68160
San Paolo di Jesi AN 15 933 69093
Gagliole MC 15 620 69713
Cupramontana AN 16 4756 74469
Filottrano AN 16 9499 83968
Serrapetrona MC 17 966 84934
Belforte del Chienti MC 18 1886 86820
Montecassiano MC 18 7125 93945
Castelraimondo MC 18 4587 98532
Matelica MC 19 9981 108513
Monte Roberto AN 19 3061 111574
Maiolati Spontini AN 19 6248 117822
Cerreto d'Esi AN 19 3817 121639
Urbisaglia MC 19 2628 124267
Castelbellino AN 19 4947 129214
Macerata MC 19 42473 171687

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
59 Km NE of Foligno (57155 inhabitants)
60 Km S of Fano (60888 inhabitants)
70 Km SE of Pesaro (94582 inhabitants)
72 Km E of Perugia (166134 inhabitants)
84 Km NW of Teramo (54892 inhabitants)
97 Km NE of Terni (111501 inhabitants)
97 Km SE of Rimini (147750 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 1.5 2021-12-20
12:37:43		 43.3252 13.2193 1 2022-03-30
13:04:32		 Bollettino Sismico Italiano INGV 100008881
Reviewed
Rev100 		ML 1.6 2021-12-20
12:37:43		 43.342 13.2332 6 2021-12-20
12:46:55		 Sala Sismica INGV-Roma 98753801
Reviewed
Rev100 		ML 1.5 2021-12-20
12:37:43		 43.348 13.2515 6 2021-12-20
12:45:00		 Sala Sismica INGV-Roma 98753791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-20 12:37:43 ± 0.19
Latitude 43.3252 ± 0.0081
Longitude 13.2193 ± 0.0161
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 100008881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1390
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.54409
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 98753791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-20 12:45:00

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 100008881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-22 15:43:34

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 98753801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-20 12:46:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDRU.HHZ. 2021-12-20T12:39:23.10 3.0 undecidable manual Sg 8.43 0
IV.ZEN8.EHZ. 2021-12-20T12:39:07.30 3.0 undecidable manual Sn 0.21 0
IV.CAR1.HNZ. 2021-12-20T12:39:03.93 3.0 positive manual Pg 9.6 0
IV.MNTV.EHZ. 2021-12-20T12:38:58.50 3.0 undecidable manual Sn 0.99 0
CR.STON.BHZ. 2021-12-20T12:38:46.18 3.0 negative manual Pg 10.28 0
IV.TST01.HHZ. 2021-12-20T12:38:39.66 3.0 undecidable manual Sn 0.09 0
RD.PGF.BHZ. 2021-12-20T12:38:34.80 3.0 undecidable manual Pn 0.33 0
IV.IMOL.HNZ. 2021-12-20T12:38:29.13 3.0 undecidable manual S -3.02 0
OT.OT17.EHZ. 2021-12-20T12:38:26.34 3.0 positive manual Pg 4.56 0
IV.CAFE.HHZ. 2021-12-20T12:38:26.10 3.0 undecidable manual Pn -2.01 0
IV.SMA1.EHZ. 2021-12-20T12:37:58.29 3.0 positive manual P -0.06 0
IV.NRCA.HHZ. 2021-12-20T12:37:54.05 0.3 undecidable manual P 189 55.2003 91 -0.78 59
IV.MURB.HHZ. 2021-12-20T12:37:54.53 0.3 undecidable manual P 263 56.499 91 -0.56 64
IV.ASSB.HHZ. 2021-12-20T12:37:54.07 0.3 undecidable manual P 236 55.1004 91 -0.75 59
IV.NARO.HHZ. 2021-12-20T12:37:54.81 0.6 undecidable manual P 302 60.3951 50 -1.04 34
IV.MF5.EHZ. 2021-12-20T12:37:52.70 0.3 undecidable manual P 152 42.2244 91 0.48 67
IV.MMO1.EHZ. 2021-12-20T12:37:52.95 0.3 undecidable manual P 170 48.0186 91 -0.44 67
IV.FRON.EHZ. 2021-12-20T12:37:52.31 0.3 undecidable manual P 298 45.1215 91 -0.51 66
IV.MC2.EHZ. 2021-12-20T12:37:52.76 0.3 undecidable manual P 183 45.9207 91 -0.22 71
IV.CESI.HHZ. 2021-12-20T12:37:52.36 0.1 undecidable manual P 216 43.7229 91 -0.17 96
IV.SSFR.HHZ. 2021-12-20T12:37:51.15 0.3 undecidable manual P 289 37.3293 91 -0.1 74
IV.AOI.HHE. 2021-12-20T12:37:51.30 0.6 undecidable manual P 51 39.627 91 -0.41 46
IV.FDMO.HHZ. 2021-12-20T12:37:50.57 0.1 undecidable manual P 198 33.744 91 0.04 100
IV.MML1.EHZ. 2021-12-20T12:37:50.28 0.1 positive manual P 221 30.8469 91 0.33 95
IV.ARVD.HHZ. 2021-12-20T12:37:49.59 0.1 undecidable manual P 311 29.4483 91 -0.09 100
IV.CSP1.EHZ. 2021-12-20T12:37:49.35 0.1 undecidable manual P 183 25.9518 91 0.39 94
IV.SNTG.HHZ. 2021-12-20T12:37:48.91 0.1 undecidable manual P 251 23.8539 91 0.37 95
IV.MMUR.HNZ. 2021-12-20T12:37:48.58 1.0 undecidable manual P 306 22.0668 91 0.38 24
IV.PF6.EHZ. 2021-12-20T12:37:48.66 0.6 undecidable manual P 186 20.868 91 0.71 43
IV.EL6.EHZ. 2021-12-20T12:37:46.56 0.1 positive manual P 273 9.4794 93 0.88 81
IV.CING.HHZ. 2021-12-20T12:37:45.43 0.1 undecidable manual P 341 5.8941 95 0.47 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHN. ML:1.4 0.0001785 0.5 AML other m 2021-12-20T12:37:53.82
IV.CSP1.EHE. ML:1.6 0.00026900000000000003 1.48 AML other m 2021-12-20T12:37:54.84
IV.SNTG.HHE. ML:1.1 0.00008515000000000001 0.56 AML other m 2021-12-20T12:37:55.65
IV.ARVD.HHN. ML:1.0 0.0000564 0.6 AML other m 2021-12-20T12:37:56.40
IV.ARVD.HHE. ML:1.2 0.0000761 0.78 AML other m 2021-12-20T12:37:56.66
IV.CSP1.EHN. ML:1.7 0.000323 0.22 AML other m 2021-12-20T12:37:56.59
IV.FDMO.HHE. ML:1.5 0.000128 1.06 AML other m 2021-12-20T12:37:56.33
IV.MML1.EHE. ML:1.2 0.00007565 0.78 AML other m 2021-12-20T12:37:57.18
IV.MML1.EHN. ML:1.3 0.00008840000000000001 0.96 AML other m 2021-12-20T12:37:57.44
IV.FDMO.HHN. ML:1.3 0.00007935 0.14 AML other m 2021-12-20T12:37:58.38
IV.SSFR.HHE. ML:1.8 0.0002195 0.18 AML other m 2021-12-20T12:37:59.52
IV.SSFR.HNN. ML:1.9 0.00032450000000000003 0.7 AML other m 2021-12-20T12:38:00.22
IV.SSFR.HHN. ML:1.8 0.000266 1.08 AML other m 2021-12-20T12:38:00.23
IV.SSFR.HNE. ML:1.8 0.0002465 0.52 AML other m 2021-12-20T12:38:01.22
IV.CESI.HHN. ML:1.3 0.00006634999999999999 0.96 AML other m 2021-12-20T12:38:01.36
IV.CESI.HHE. ML:1.4 0.00007664999999999999 0.4 AML other m 2021-12-20T12:38:02.24
IV.ASSB.HHE. ML:1.3 0.0000523 1.28 AML other m 2021-12-20T12:38:03.83
IV.ASSB.HHN. ML:1.5 0.0000756 1.82 AML other m 2021-12-20T12:38:03.04
IV.MURB.HHN. ML:1.7 0.0001124 1.02 AML other m 2021-12-20T12:38:05.22
IV.MURB.HHE. ML:1.8 0.00014250000000000002 0.86 AML other m 2021-12-20T12:38:05.44
IV.NRCA.HHN. ML:1.5 0.000071 0.78 AML other m 2021-12-20T12:38:06.59
IV.NRCA.HHE. ML:1.4 0.00006345 0.16 AML other m 2021-12-20T12:38:08.23
IV.SMA1.EHE. ML:1.5 0.0000435 0.42 AML other m 2021-12-20T12:38:11.45
IV.SMA1.EHN. ML:1.6 0.000061 0.98 AML other m 2021-12-20T12:38:11.42
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