Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.0 on date 15-04-2021 and time 16:58:07 (Italy) in region 2 km E Sabbio Chiese (BS)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 2 km E Sabbio Chiese (BS), on

  • 15-04-2021 14:58:07 (UTC)
  • 15-04-2021 16:58:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.6670, 10.4420 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
Sabbio Chiese BS 2 3905 3905
Provaglio Val Sabbia BS 3 918 4823
Barghe BS 3 1189 6012
Preseglie BS 4 1514 7526
Odolo BS 5 1985 9511
Vobarno BS 5 8103 17614
Treviso Bresciano BS 5 545 18159
Vestone BS 6 4390 22549
Roè Volciano BS 6 4574 27123
Agnosine BS 7 1790 28913
Vallio Terme BS 7 1405 30318
Villanuova sul Clisi BS 7 5773 36091
Bione BS 8 1386 37477
Lavenone BS 8 555 38032
Idro BS 8 1966 39998
Gavardo BS 9 12056 52054
Mura BS 9 796 52850
Salò BS 10 10693 63543
Casto BS 10 1778 65321
Gardone Riviera BS 11 2660 67981
Pertica Bassa BS 11 651 68632
Pertica Alta BS 11 563 69195
Caino BS 11 2151 71346
Muscoline BS 11 2641 73987
Anfo BS 12 486 74473
Puegnago sul Garda BS 12 3410 77883
Capovalle BS 13 369 78252
San Felice del Benaco BS 13 3391 81643
Serle BS 13 3023 84666
Paitone BS 13 2130 86796
Toscolano-Maderno BS 13 7990 94786
Prevalle BS 13 6999 101785
Lodrino BS 14 1698 103483
Nuvolento BS 14 3992 107475
Lumezzane BS 14 22644 130119
Calvagese della Riviera BS 14 3583 133702
Polpenazze del Garda BS 14 2611 136313
Nave BS 16 11029 147342
Manerba del Garda BS 16 5287 152629
Soiano del Lago BS 16 1896 154525
Marmentino BS 16 675 155200
Nuvolera BS 16 4696 159896
Valvestino BS 16 184 160080
Botticino BS 16 10914 170994
Moniga del Garda BS 17 2533 173527
Irma BS 17 132 173659
Gargnano BS 17 2934 176593
Bagolino BS 17 3897 180490
Bovezzo BS 17 7516 188006
Bedizzole BS 17 12296 200302
Bondone TN 18 670 200972
Tavernole sul Mella BS 18 1303 202275
Marcheno BS 18 4364 206639
Collio BS 18 2108 208747
Padenghe sul Garda BS 18 4458 213205
Sarezzo BS 19 13553 226758
Concesio BS 19 15465 242223
Magasa BS 19 142 242365
Bovegno BS 19 2226 244591
Mazzano BS 19 12222 256813
Villa Carcina BS 20 11004 267817
Rezzato BS 20 13472 281289
Collebeato BS 20 4622 285911
Pezzaze BS 20 1500 287411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Brescia (196480 inhabitants)
50 Km W of Verona (258765 inhabitants)
60 Km E of Bergamo (119381 inhabitants)
68 Km NE of Cremona (71901 inhabitants)
69 Km SW of Trento (117317 inhabitants)
87 Km W of Vicenza (112953 inhabitants)
90 Km NE of Piacenza (102191 inhabitants)
91 Km E of Monza (122671 inhabitants)
95 Km E of Sesto San Giovanni (81608 inhabitants)
96 Km E of Cinisello Balsamo (75078 inhabitants)
97 Km N of Parma (192836 inhabitants)
100 Km E of Milano (1345851 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 2021-04-15
14:58:07		 45.6672 10.4418 1 2021-07-12
16:55:11		 Bollettino Sismico Italiano INGV 90229841
Reviewed
Rev100 		ML 1.2 2021-04-15
14:58:07		 45.6372 10.4273 9 2021-04-15
15:06:29		 Sala Sismica INGV-Roma 89120801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-15 14:58:07 ± 0.11
Latitude 45.6672 ± 0.0063
Longitude 10.4418 ± 0.0090
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 90229841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 720
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.45596
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 89120801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-15 15:06:29

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 90229841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-18 12:49:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.LUSI.HHZ. 2021-04-15T14:58:17.39 0.3 undecidable manual P 50 50.616 91 -0.57 62
IV.MABI.HHZ. 2021-04-15T14:58:16.16 0.3 undecidable manual P 7 43.4232 91 -0.36 66
ST.RONC.EHZ. 2021-04-15T14:58:15.37 0.3 undecidable manual P 22 37.4292 91 0.04 72
IV.MBAL.HNE. 2021-04-15T14:58:14.29 0.3 undecidable manual P 84 32.5452 91 -0.06 72
IV.ZONE.HHZ. 2021-04-15T14:58:13.30 0.3 undecidable manual P 293 27.3504 91 -0.01 73
OX.BALD.HNZ. 2021-04-15T14:58:13.70 0.3 undecidable manual P 86 29.2485 91 0 73
IV.ZEN8.EHZ. 2021-04-15T14:58:12.30 0.3 undecidable manual P 98 22.755 91 -0.09 73
IV.MAGA.HHZ. 2021-04-15T14:58:11.76 0.1 undecidable manual P 50 18.7701 92 0.16 96
IV.BAG8.HNN. 2021-04-15T14:58:11.91 0.3 undecidable manual P 6 17.3715 92 0.6 65
IV.SGAL.EHZ. 2021-04-15T14:58:10.80 0.3 undecidable manual P 222 15.3735 92 -0.11 73
IV.VOBA.EHN. 2021-04-15T14:58:09.08 0.1 undecidable manual P 119 5.4945 95 0.14 99
IV.SALO.HHZ. 2021-04-15T14:58:09.58 0.1 positive manual P 130 8.3805 93 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGAL.EHN. ML:1.2 0.0002045 0.08 AML other m 2021-04-15T14:58:14.05
IV.SGAL.EHE. ML:1.0 0.000129 1.36 AML other m 2021-04-15T14:58:14.74
IV.MAGA.HHE. ML:0.9 0.0000769 1.18 AML other m 2021-04-15T14:58:17.08
IV.ZONE.HHE. ML:0.9 0.0000516 0.2 AML other m 2021-04-15T14:58:18.72
IV.ZONE.HHN. ML:1.0 0.00005535 0.94 AML other m 2021-04-15T14:58:19.61
IV.MAGA.HHN. ML:0.8 0.0000544 0.22 AML other m 2021-04-15T14:58:20.11
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