Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.0 on date 26-06-2020 and time 12:08:22 (UTC) in region 4 km SW Serra San Quirico (AN)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 4 km SW Serra San Quirico (AN), on

  • 26-06-2020 12:08:22 (UTC)
  • 26-06-2020 14:08:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4180, 12.9940 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 4 2850 2850
Genga AN 5 1797 4647
Mergo AN 7 1037 5684
Poggio San Vicino MC 8 246 5930
Rosora AN 10 1985 7915
Arcevia AN 10 4612 12527
Cupramontana AN 10 4756 17283
Cerreto d'Esi AN 11 3817 21100
Sassoferrato AN 11 7285 28385
Castelplanio AN 11 3540 31925
Fabriano AN 11 31480 63405
Apiro MC 12 2280 65685
Maiolati Spontini AN 12 6248 71933
Poggio San Marcello AN 13 693 72626
Montecarotto AN 14 1987 74613
Monte Roberto AN 14 3061 77674
Serra de' Conti AN 15 3746 81420
Castelbellino AN 15 4947 86367
San Paolo di Jesi AN 15 933 87300
Staffolo AN 16 2253 89553
Matelica MC 18 9981 99534
Barbara AN 18 1368 100902
Cingoli MC 19 10352 111254
Esanatoglia MC 19 2034 113288
Serra Sant'Abbondio PU 20 1027 114315

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km S of Fano (60888 inhabitants)
48 Km W of Ancona (100861 inhabitants)
55 Km S of Pesaro (94582 inhabitants)
56 Km NE of Foligno (57155 inhabitants)
60 Km NE of Perugia (166134 inhabitants)
79 Km SE of Rimini (147750 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
99 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 1.0 2020-06-26
12:08:22		 43.4177 12.9938 1 2020-11-19
12:36:56		 Bollettino Sismico Italiano INGV 81731931
Reviewed
Rev100 		ML 1.0 2020-06-26
12:08:22		 43.4448 13.0037 8 2020-06-26
13:06:31		 Sala Sismica INGV-Roma 80524921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-26 12:08:22 ± 0.13
Latitude 43.4177 ± 0.0063
Longitude 12.9938 ± 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 81731931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 670
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.41729
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 81731931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-07 10:46:52

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 80524921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-26 13:06:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHE. 2020-06-26T12:08:31.38 0.3 undecidable manual P 189 46.3203 91 -0.73 58
IV.FDMO.HHE. 2020-06-26T12:08:31.18 0.3 undecidable manual P 170 42.9237 91 -0.25 68
IV.CSP1.EHN. 2020-06-26T12:08:30.54 0.3 undecidable manual P 155 39.9267 91 -0.29 67
IV.PIEI.HHZ. 2020-06-26T12:08:30.37 0.3 undecidable manual P 290 39.2274 91 -0.31 67
IV.MML1.HNE. 2020-06-26T12:08:29.43 0.3 undecidable manual P 183 33.744 91 -0.16 70
IV.MPAG.EHZ. 2020-06-26T12:08:28.52 0.1 undecidable manual P 321 30.1476 91 -0.34 91
IV.SNTG.HHZ. 2020-06-26T12:08:27.12 0.1 undecidable manual P 193 18.5703 92 0.58 86
IV.FOSV.EHZ. 2020-06-26T12:08:27.85 0.3 undecidable manual P 234 23.1546 91 0.38 68
IV.ATSC.EHE. 2020-06-26T12:08:27.81 0.3 undecidable manual P 272 24.753 91 0.02 73
IV.SSFR.HHZ. 2020-06-26T12:08:26.53 0.1 undecidable manual P 277 17.1717 92 0.26 94
IV.CING.HNN. 2020-06-26T12:08:26.59 0.3 undecidable manual P 106 16.872 92 0.38 69
IV.ARVD.HHZ. 2020-06-26T12:08:24.84 0.1 negative manual P 335 9.879 93 0.03 100
IV.MMUR.HNZ. 2020-06-26T12:08:23.46 0.1 undecidable manual P 6 2.6973 100 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HNE. ML:1.2 0.00012917468500000002 1.3024 AML other m 2020-06-26T12:08:29.73
IV.SNTG.HHE. ML:0.9 0.0000703 0.2 AML other m 2020-06-26T12:08:31.17
IV.SNTG.HHN. ML:0.9 0.000075 0.46 AML other m 2020-06-26T12:08:31.92
IV.SSFR.HNN. ML:1.2 0.000146746075 0.1472 AML other m 2020-06-26T12:08:32.27
IV.SSFR.HHN. ML:1.1 0.00013836795000000002 0.16 AML other m 2020-06-26T12:08:32.37
IV.SSFR.HNE. ML:1.2 0.0001567818 0.2112 AML other m 2020-06-26T12:08:32.37
IV.SSFR.HHE. ML:1.1 0.00014240049999999997 0.2048 AML other m 2020-06-26T12:08:32.38
IV.PIEI.HHN. ML:0.7 0.00001806199 0.3392 AML other m 2020-06-26T12:08:37.68
IV.PIEI.HHE. ML:0.9 0.000031322564999999995 0.1856 AML other m 2020-06-26T12:08:37.71
IV.NARO.HHE. ML:0.7 0.000020243435 0.3008 AML other m 2020-06-26T12:08:38.21
IV.MPAG.EHN. ML:0.8 0.000028744480000000004 0.5376 AML other m 2020-06-26T12:08:42.81
IV.MPAG.EHE. ML:0.8 0.000030454135 1.3408 AML other m 2020-06-26T12:08:46.89
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