Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 18-12-2021 and time 11:57:37 (Italy) in region 1 km W Osio Sopra (BG)

A magnitude ML 1.4 earthquake occured in region: 1 km W Osio Sopra (BG), on

  • 18-12-2021 10:57:37 (UTC)
  • 18-12-2021 11:57:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.6270, 9.5780 at 26 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Osio Sopra BG 1 5235 5235
Osio Sotto BG 2 12443 17678
Filago BG 2 3218 20896
Boltiere BG 3 6013 26909
Brembate BG 3 8616 35525
Dalmine BG 3 23281 58806
Madone BG 4 3959 62765
Levate BG 4 3809 66574
Verdellino BG 4 7663 74237
Capriate San Gervasio BG 4 8066 82303
Verdello BG 5 8018 90321
Bonate Sotto BG 5 6670 96991
Trezzo sull'Adda MI 5 12063 109054
Ciserano BG 5 5769 114823
Treviolo BG 6 10682 125505
Chignolo d'Isola BG 6 3335 128840
Bottanuco BG 6 5148 133988
Lallio BG 6 4172 138160
Stezzano BG 6 13018 151178
Arcene BG 6 4811 155989
Pontirolo Nuovo BG 6 4974 160963
Canonica d'Adda BG 6 4474 165437
Bonate Sopra BG 7 9630 175067
Vaprio d'Adda MI 7 8808 183875
Comun Nuovo BG 7 4331 188206
Pognano BG 7 1602 189808
Suisio BG 7 3846 193654
Terno d'Isola BG 7 8014 201668
Presezzo BG 7 4898 206566
Grezzago MI 8 3030 209596
Curno BG 8 7651 217247
Ponte San Pietro BG 8 11478 228725
Trezzano Rosa MI 8 5141 233866
Zanica BG 8 8616 242482
Medolago BG 8 2332 244814
Pozzo d'Adda MI 8 6032 250846
Lurano BG 8 2792 253638
Mozzo BG 9 7481 261119
Azzano San Paolo BG 9 7602 268721
Castel Rozzone BG 9 2916 271637
Busnago MB 9 6750 278387
Spirano BG 9 5700 284087
Solza BG 9 2079 286166
Fara Gera d'Adda BG 9 7979 294145
Cornate d'Adda MB 9 10648 304793
Urgnano BG 9 9735 314528
Mapello BG 10 6815 321343
Roncello MB 10 4431 325774
Brembate di Sopra BG 10 7892 333666
Basiano MI 10 3650 337316
Valbrembo BG 10 4229 341545
Bergamo BG 10 119381 460926
Orio al Serio BG 11 1770 462696
Ambivere BG 11 2398 465094
Brignano Gera d'Adda BG 11 6031 471125
Calusco d'Adda BG 11 8328 479453
Masate MI 11 3530 482983
Mezzago MB 11 4408 487391
Sotto il Monte Giovanni XXIII BG 11 4408 491799
Cologno al Serio BG 11 11133 502932
Paladina BG 12 4055 506987
Verderio LC 12 5729 512716
Treviglio BG 12 29706 542422
Paderno d'Adda LC 12 3907 546329
Carvico BG 12 4656 550985
Cassano d'Adda MI 12 18880 569865
Barzana BG 12 1951 571816
Inzago MI 12 10927 582743
Sulbiate MB 12 4186 586929
Grassobbio BG 12 6406 593335
Bellusco MB 12 7354 600689
Ornago MB 13 4931 605620
Seriate BG 13 25182 630802
Robbiate LC 13 6324 637126
Pagazzano BG 13 2090 639216
Aicurzio MB 13 2101 641317
Almè BG 13 5652 646969
Villa d'Adda BG 13 4723 651692
Ponteranica BG 13 6849 658541
Pontida BG 13 3301 661842
Cambiago MI 13 6843 668685
Cavenago di Brianza MB 13 7261 675946
Gessate MI 14 8872 684818
Imbersago LC 14 2400 687218
Bernareggio MB 14 10992 698210
Almenno San Bartolomeo BG 14 6209 704419
Villa d'Almè BG 14 6712 711131
Almenno San Salvatore BG 14 5749 716880
Gorle BG 14 6610 723490
Bellinzago Lombardo MI 14 3836 727326
Torre Boldone BG 14 8690 736016
Palazzago BG 14 4475 740491
Morengo BG 14 2554 743045
Ghisalba BG 14 6175 749220
Ronco Briantino MB 15 3456 752676
Cavernago BG 15 2624 755300
Pedrengo BG 15 6042 761342
Sorisole BG 15 9073 770415
Calvenzano BG 15 4188 774603
Casirate d'Adda BG 15 4115 778718
Brusaporto BG 15 5569 784287
Caravaggio BG 15 16049 800336
Cisano Bergamasco BG 15 6394 806730
Merate LC 15 14852 821582
Caprino Bergamasco BG 15 3105 824687
Ranica BG 16 5981 830668
Scanzorosciate BG 16 10076 840744
Osnago LC 16 4806 845550
Cernusco Lombardone LC 16 3876 849426
Carnate MB 16 7280 856706
Burago di Molgora MB 16 4273 860979
Roncola BG 16 766 861745
Martinengo BG 16 10448 872193
Pozzuolo Martesana MI 16 8458 880651
Bariano BG 16 4342 884993
Alzano Lombardo BG 16 13636 898629
Albano Sant'Alessandro BG 16 8252 906881
Villa di Serio BG 16 6668 913549
Vimercate MB 16 25938 939487
Arzago d'Adda BG 16 2718 942205
Lomagna LC 16 4935 947140
Brivio LC 16 4631 951771
Bagnatica BG 16 4292 956063
Fornovo San Giovanni BG 16 3429 959492
Strozza BG 17 1083 960575
Calco LC 17 5289 965864
Usmate Velate MB 17 10205 976069
Caponago MB 17 5245 981314
Pessano con Bornago MI 17 9109 990423
Gorgonzola MI 17 20233 1010656
Torre de' Roveri BG 17 2436 1013092
Costa di Mezzate BG 17 3333 1016425
Calcinate BG 18 5958 1022383
Sedrina BG 18 2444 1024827
Capizzone BG 18 1270 1026097
Montevecchia LC 18 2623 1028720
Ubiale Clanezzo BG 18 1394 1030114
Olgiate Molgora LC 18 6397 1036511
Misano di Gera d'Adda BG 18 2964 1039475
Torre de' Busi LC 18 2072 1041547
Truccazzano MI 18 6000 1047547
Romano di Lombardia BG 18 20217 1067764
Rivolta d'Adda CR 18 8114 1075878
Montello BG 18 3260 1079138
Vailate CR 18 4596 1083734
Agrate Brianza MB 18 15426 1099160
Bedulita BG 18 746 1099906
Mornico al Serio BG 18 2965 1102871
Melzo MI 19 18710 1121581
Airuno LC 19 2879 1124460
Bussero MI 19 8582 1133042
San Paolo d'Argon BG 19 5591 1138633
Monte Marenzo LC 19 1947 1140580
Cortenuova BG 19 1978 1142558
Bolgare BG 19 6151 1148709
Mozzanica BG 19 4589 1153298
Concorezzo MB 19 15631 1168929
Nembro BG 19 11622 1180551
Fara Olivana con Sola BG 20 1293 1181844
Arcore MB 20 17874 1199718
Zogno BG 20 9029 1208747
Agnadello CR 20 3845 1212592

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Bergamo (119381 inhabitants)
24 Km E of Monza (122671 inhabitants)
28 Km E of Sesto San Giovanni (81608 inhabitants)
29 Km E of Cinisello Balsamo (75078 inhabitants)
35 Km E of Milano (1345851 inhabitants)
43 Km E of Rho (50434 inhabitants)
43 Km E of Como (84495 inhabitants)
51 Km W of Brescia (196480 inhabitants)
51 Km E of Legnano (60262 inhabitants)
56 Km E of Busto Arsizio (83106 inhabitants)
59 Km NE of Pavia (72576 inhabitants)
61 Km E of Gallarate (53343 inhabitants)
62 Km E of Varese (80799 inhabitants)
65 Km N of Piacenza (102191 inhabitants)
65 Km NW of Cremona (71901 inhabitants)
66 Km NE of Vigevano (63310 inhabitants)
77 Km E of Novara (104380 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 1.4 2021-12-18
10:57:37		 45.6272 9.5782 26 2022-03-30
13:04:23		 Bollettino Sismico Italiano INGV 98820631
Reviewed
Rev100 		ML 2.2 2021-12-18
10:57:37		 45.6165 9.5805 25 2021-12-18
11:06:54		 Sala Sismica INGV-Roma 98668511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-18 10:57:37 ± 0.12
Latitude 45.6272 ± 0.0081
Longitude 9.5782 ± 0.0064
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98820631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 657
Semi-minor axis of confidence ellipse (meter) 643
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.19610
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 98668511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-18 11:06:54

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 98820631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-15 12:31:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SIRI.HNZ. 2021-12-18T10:59:48.88 3.0 undecidable manual Pg 26.01 0
IV.POFI.HHZ. 2021-12-18T10:59:41.97 3.0 undecidable manual Sn -8.74 0
IV.PETRA.HHZ. 2021-12-18T10:59:41.10 3.0 undecidable manual Pn -0.49 0
SL.LJU.BHZ. 2021-12-18T10:59:33.62 3.0 undecidable manual Sg 19.67 0
IV.MRB1.HHZ. 2021-12-18T10:59:21.00 3.0 undecidable manual Pg 14.11 0
IV.CDRU.HHZ. 2021-12-18T10:59:14.26 3.0 undecidable manual Pn -1.65 0
IV.SSFR.HHZ. 2021-12-18T10:59:03.19 3.0 undecidable manual Sn -4.46 0
IV.APEC.HHZ. 2021-12-18T10:58:57.65 3.0 undecidable manual Sn -3.4 0
IV.OFFI.HHZ. 2021-12-18T10:58:56.74 3.0 negative manual Pg 17.15 0
IT.GLNS.HNZ. 2021-12-18T10:58:56.69 3.0 undecidable manual Pn -1.72 0
IV.LAV9.HHZ. 2021-12-18T10:58:51.77 3.0 undecidable manual Pn 4.37 0
IV.MC2.EHZ. 2021-12-18T10:58:44.76 3.0 undecidable manual Pg 8.4 0
IV.MURB.HHZ. 2021-12-18T10:58:38.25 3.0 undecidable manual Pg 9.92 0
IV.LNSS.HHZ. 2021-12-18T10:58:35.65 3.0 positive manual Pn -3 0
IV.ARVD.HHZ. 2021-12-18T10:58:24.68 3.0 negative manual Pn -4.17 0
SI.MOSI.HHZ. 2021-12-18T10:58:16.55 0.6 undecidable manual S 34 132.7671 54 0.87 30
ST.CARE.HNZ. 2021-12-18T10:58:13.93 0.6 undecidable manual S 44 123.3876 97 0.4 38
IV.IMOL.HNZ. 2021-12-18T10:58:10.16 3.0 negative manual Pn -1.93 0
CH.FUSIO.HHZ. 2021-12-18T10:58:10.97 0.3 undecidable manual S 323 115.6953 98 -0.53 56
SI.LUSI.HHZ. 2021-12-18T10:58:09.44 0.3 undecidable manual S 70 111.8991 98 -1.03 45
IV.MBAL.EHZ. 2021-12-18T10:58:07.03 0.3 undecidable manual S 85 99.6225 99 -0.21 62
CH.BERNI.HHE. 2021-12-18T10:58:05.71 0.3 undecidable manual S 21 93.7395 100 0.01 65
ST.RONC.EHZ. 2021-12-18T10:58:04.19 0.3 undecidable manual S 64 89.7435 101 -0.47 60
IV.MABI.HHZ. 2021-12-18T10:58:03.18 0.3 undecidable manual S 56 86.5467 101 -0.62 57
SI.MOSI.HHZ. 2021-12-18T10:58:00.69 0.3 undecidable manual P 34 132.7671 54 0.99 43
IV.SALO.HHZ. 2021-12-18T10:58:00.69 0.3 undecidable manual S 90 73.371 103 0.31 64
IV.VARE.HHZ. 2021-12-18T10:57:59.17 0.3 undecidable manual S 293 67.9764 105 0.19 66
ST.CARE.HNZ. 2021-12-18T10:57:58.48 0.3 undecidable manual P 44 123.3876 97 0.02 61
CH.FUSIO.HHZ. 2021-12-18T10:57:57.14 0.6 undecidable manual P 323 115.6953 98 -0.15 41
IV.SGAL.EHZ. 2021-12-18T10:57:56.18 0.3 undecidable manual S 97 57.2982 108 -0.05 69
SI.LUSI.HHZ. 2021-12-18T10:57:56.77 0.3 undecidable manual P 70 111.8991 98 0.07 62
IV.MBAL.EHZ. 2021-12-18T10:57:55.32 0.6 undecidable manual P 85 99.6225 99 0.49 39
CH.MUGIO.HHZ. 2021-12-18T10:57:54.80 0.3 undecidable manual S 308 52.8027 109 -0.31 66
CH.BERNI.HHE. 2021-12-18T10:57:54.44 0.3 undecidable manual P 21 93.7395 100 0.5 59
ST.RONC.EHZ. 2021-12-18T10:57:53.42 0.3 undecidable manual P 64 89.7435 101 0.08 65
IV.BOZZ.HNE. 2021-12-18T10:57:53.95 0.6 undecidable manual P 129 91.0422 100 0.42 40
IV.BOB.HNE. 2021-12-18T10:57:53.72 1.0 undecidable manual P 186 95.8263 100 -0.54 20
IV.MABI.HHZ. 2021-12-18T10:57:52.49 0.3 undecidable manual P 56 86.5467 101 -0.35 62
IV.SALO.HHZ. 2021-12-18T10:57:51.19 0.3 undecidable manual P 90 73.371 103 0.32 63
IV.VARE.HHZ. 2021-12-18T10:57:50.13 0.3 undecidable manual P 293 67.9764 105 0.07 68
IV.SGAL.EHZ. 2021-12-18T10:57:48.52 0.3 undecidable manual P 97 57.2982 108 0.05 69
IV.MERA.HNZ. 2021-12-18T10:57:47.00 0.3 undecidable manual S 307 14.4744 147 0.29 72
CH.MUGIO.HHZ. 2021-12-18T10:57:47.48 0.3 undecidable manual P 308 52.8027 109 -0.34 66
IV.MDI.HHZ. 2021-12-18T10:57:47.58 0.3 undecidable manual S 34 19.0698 139 0.13 74
IV.MERA.HNZ. 2021-12-18T10:57:43.03 0.1 undecidable manual P 307 14.4744 147 0.06 100
IV.MDI.HHZ. 2021-12-18T10:57:43.18 0.3 undecidable manual P 34 19.0698 139 -0.22 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MDI.HHE. ML:1.4 0.00012455000000000002 0.1 AML other m 2021-12-18T10:57:48.06
IV.MDI.HHN. ML:1.2 0.0000804 0.3 AML other m 2021-12-18T10:57:48.57
CH.MUGIO.HHN. ML:1.1 0.000023144144999999997 0.3904 AML other m 2021-12-18T10:57:55.62
CH.MUGIO.HHE. ML:1.1 0.00002305426 0.48 AML other m 2021-12-18T10:57:55.40
IV.SGAL.EHE. ML:1.0 0.000022253105000000002 2.1632 AML other m 2021-12-18T10:57:56.93
IV.SGAL.EHN. ML:1.2 0.000028452859999999997 0.3392 AML other m 2021-12-18T10:57:57.20
IV.VARE.HHN. ML:1.2 0.00002371666 3.584 AML other m 2021-12-18T10:57:59.99
IV.VARE.HHE. ML:1.3 0.000027919015 0.576 AML other m 2021-12-18T10:58:00.15
IV.MABI.HHE. ML:1.2 0.000021649999999999998 0.34 AML other m 2021-12-18T10:58:04.08
IV.MABI.HHN. ML:1.5 0.00003315 0.74 AML other m 2021-12-18T10:58:04.22
ST.RONC.EHE. ML:2.0 0.00010899999999999999 0.84 AML other m 2021-12-18T10:58:06.44
ST.RONC.EHN. ML:2.1 0.00014250000000000002 0.44 AML other m 2021-12-18T10:58:06.47
IV.MBAL.EHE. ML:1.6 0.000036295305 1.5232 AML other m 2021-12-18T10:58:08.48
IV.MBAL.EHN. ML:1.5 0.00003173203 0.8768 AML other m 2021-12-18T10:58:08.08
CH.FUSIO.HHN. ML:1.4 0.000020724045 3.9872 AML other m 2021-12-18T10:58:09.96
SI.LUSI.HHN. ML:1.8 0.00004575 0.92 AML other m 2021-12-18T10:58:12.04
SI.LUSI.HHE. ML:1.6 0.0000322 1.58 AML other m 2021-12-18T10:58:12.07
CH.FUSIO.HHE. ML:1.5 0.00002569459 1.4144 AML other m 2021-12-18T10:58:12.92
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
Waveforms Seismic signals in miniseed + resp format Download