Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.3 on date 14-01-2021 and time 10:31:18 (Italy) in region 6 km SW Serra San Quirico (AN)

A magnitude ML 1.3 (quarry blast) earthquake occured in region: 6 km SW Serra San Quirico (AN), on

  • 14-01-2021 09:31:18 (UTC)
  • 14-01-2021 10:31:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4020, 12.9920 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
Serra San Quirico AN 6 2850 2850
Genga AN 6 1797 4647
Poggio San Vicino MC 8 246 4893
Mergo AN 9 1037 5930
Cerreto d'Esi AN 9 3817 9747
Fabriano AN 10 31480 41227
Rosora AN 11 1985 43212
Cupramontana AN 11 4756 47968
Apiro MC 11 2280 50248
Sassoferrato AN 11 7285 57533
Arcevia AN 12 4612 62145
Castelplanio AN 13 3540 65685
Maiolati Spontini AN 13 6248 71933
Poggio San Marcello AN 14 693 72626
Monte Roberto AN 15 3061 75687
Montecarotto AN 15 1987 77674
Castelbellino AN 16 4947 82621
San Paolo di Jesi AN 16 933 83554
Matelica MC 16 9981 93535
Serra de' Conti AN 16 3746 97281
Staffolo AN 16 2253 99534
Esanatoglia MC 17 2034 101568
Cingoli MC 18 10352 111920
Gagliole MC 19 620 112540

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km W of Ancona (100861 inhabitants)
49 Km S of Fano (60888 inhabitants)
55 Km NE of Foligno (57155 inhabitants)
57 Km S of Pesaro (94582 inhabitants)
59 Km NE of Perugia (166134 inhabitants)
81 Km SE of Rimini (147750 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
98 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 1.3 2021-01-14
09:31:18		 43.4017 12.9922 1 2021-07-12
16:55:13		 Bollettino Sismico Italiano INGV 90671571
Reviewed
Rev100 		ML 1.2 2021-01-14
09:31:19		 43.4338 12.9923 2 2021-01-14
09:39:11		 Sala Sismica INGV-Roma 86241731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-14 09:31:18 ± 0.22
Latitude 43.4017 ± 0.0162
Longitude 12.9922 ± 0.0173
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 90671571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1940
Semi-minor axis of confidence ellipse (meter) 1120
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 1940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
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) 0.35793
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 90671571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-31 23:29:11

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 86241731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-14 09:39:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2021-01-14T09:31:42.97 3.0 undecidable manual P 0.16 0
IV.BRSN.HNZ. 2021-01-14T09:31:39.68 3.0 positive manual P 0.09 0
IV.PIEI.HHZ. 2021-01-14T09:31:26.54 0.1 undecidable manual P 292 39.7269 91 -0.38 88
IV.MPAG.EHZ. 2021-01-14T09:31:25.04 0.3 undecidable manual P 324 31.4463 91 -0.22 69
IV.FRON.EHZ. 2021-01-14T09:31:24.24 0.3 undecidable manual P 301 25.0527 91 0.26 69
IV.CING.HHN. 2021-01-14T09:31:22.94 0.3 undecidable manual P 100 16.6722 92 0.64 63
IV.SSFR.HHZ. 2021-01-14T09:31:22.89 0.1 undecidable manual P 283 17.3715 92 0.45 90
IV.ARVD.HHZ. 2021-01-14T09:31:21.18 0.1 undecidable manual P 339 11.4774 92 -0.08 98
IV.EL6.EHZ. 2021-01-14T09:31:20.78 0.3 undecidable manual P 132 11.9769 92 -0.58 65
IV.MMUR.HNZ. 2021-01-14T09:31:19.83 0.1 undecidable manual P 5 4.4955 96 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.3 0.0003175 0.84 AML other m 2021-01-14T09:31:23.84
IV.ARVD.HHE. ML:1.4 0.0004215 0.88 AML other m 2021-01-14T09:31:27.34
IV.SSFR.HHN. ML:1.2 0.000164 0.7 AML other m 2021-01-14T09:31:28.67
IV.SSFR.HHE. ML:1.3 0.0002 0.94 AML other m 2021-01-14T09:31:32.77
IV.MPAG.EHN. ML:1.2 0.0000697 0.72 AML other m 2021-01-14T09:31:34.14
IV.MPAG.EHE. ML:1.1 0.00006025 0.7 AML other m 2021-01-14T09:31:44.28
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