Earthquake with magnitude of Md 2.5 on date 23-02-1985 and time 16:46:06 (Italy) in region 2 km NE Erve (LC)

A magnitude Md 2.5 earthquake occured in region: 2 km NE Erve (LC), on

  • 23-02-1985 15:46:06 (UTC)
  • 23-02-1985 16:46:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.84, 9.46 at 5 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Erve LC 2 722 722
Brumano BG 4 109 831
Vercurago LC 4 2831 3662
Carenno LC 4 1466 5128
Rota d'Imagna BG 4 928 6056
Morterone LC 5 36 6092
Calolziocorte LC 5 14015 20107
Pescate LC 5 2180 22287
Lecco LC 5 47999 70286
Olginate LC 6 7001 77287
Fuipiano Valle Imagna BG 6 220 77507
Garlate LC 6 2732 80239
Costa Valle Imagna BG 6 600 80839
Locatello BG 6 822 81661
Malgrate LC 7 4228 85889
Ballabio LC 7 4069 89958
Sant'Omobono Terme BG 7 3918 93876
Corna Imagna BG 7 968 94844
Galbiate LC 7 8533 103377
Valmadrera LC 7 11659 115036
Torre de' Busi LC 8 2072 117108
Monte Marenzo LC 8 1947 119055
Blello BG 8 71 119126
Valgreghentino LC 9 3464 122590
Civate LC 9 3909 126499
Vedeseta BG 9 204 126703
Ello LC 9 1225 127928
Bedulita BG 9 746 128674
Berbenno BG 9 2377 131051
Oggiono LC 10 8944 139995
Airuno LC 10 2879 142874
Taleggio BG 10 576 143450
Cassina Valsassina LC 10 482 143932
Annone di Brianza LC 10 2328 146260
Cremeno LC 11 1522 147782
Moggio LC 11 475 148257
Caprino Bergamasco BG 11 3105 151362
Capizzone BG 11 1270 152632
Brivio LC 11 4631 157263
Cisano Bergamasco BG 11 6394 163657
Colle Brianza LC 11 1713 165370
Roncola BG 11 766 166136
Val Brembilla BG 11 4397 170533
Abbadia Lariana LC 12 3200 173733
Suello LC 12 1756 175489
Palazzago BG 12 4475 179964
Dolzago LC 12 2452 182416
Barzio LC 12 1312 183728
Strozza BG 12 1083 184811
Cesana Brianza LC 12 2370 187181
Pasturo LC 12 1997 189178
Castello di Brianza LC 13 2594 191772
Santa Maria Hoè LC 13 2206 193978
Pontida BG 13 3301 197279
Sirone LC 13 2400 199679
Olgiate Molgora LC 13 6397 206076
Valbrona CO 13 2722 208798
Calco LC 13 5289 214087
Molteno LC 14 3585 217672
La Valletta Brianza LC 14 4687 222359
Mandello del Lario LC 14 10425 232784
Bosisio Parini LC 14 3457 236241
Pusiano CO 14 1367 237608
Almenno San Bartolomeo BG 14 6209 243817
Ubiale Clanezzo BG 14 1394 245211
Garbagnate Monastero LC 14 2445 247656
Canzo CO 14 5081 252737
Villa d'Adda BG 14 4723 257460
Barzago LC 14 2437 259897
Almenno San Salvatore BG 14 5749 265646
Barzana BG 15 1951 267597
Asso CO 15 3587 271184
Sedrina BG 15 2444 273628
Eupilio CO 15 2633 276261
Carvico BG 15 4656 280917
Imbersago LC 15 2400 283317
Sirtori LC 15 2819 286136
Introbio LC 15 1988 288124
Sotto il Monte Giovanni XXIII BG 15 4408 292532
Ambivere BG 15 2398 294930
Lasnigo CO 16 482 295412
San Giovanni Bianco BG 16 4864 300276
Rogeno LC 16 3182 303458
Barzanò LC 16 5140 308598
Costa Masnaga LC 16 4841 313439
Montevecchia LC 16 2623 316062
San Pellegrino Terme BG 16 4862 320924
Longone al Segrino CO 16 1878 322802
Merate LC 16 14852 337654
Mapello BG 16 6815 344469
Proserpio CO 16 926 345395
Cremella LC 16 1741 347136
Rezzago CO 16 306 347442
Villa d'Almè BG 16 6712 354154
Viganò LC 16 2100 356254
Valtorta BG 17 278 356532
Primaluna LC 17 2246 358778
Bulciago LC 17 2887 361665
Oliveto Lario LC 17 1225 362890
Cassago Brianza LC 17 4399 367289
Brembate di Sopra BG 17 7892 375181
Barni CO 17 599 375780
Camerata Cornello BG 17 630 376410
Almè BG 17 5652 382062
Sormano CO 17 639 382701
Calusco d'Adda BG 17 8328 391029
Robbiate LC 17 6324 397353
Paladina BG 17 4055 401408
Zogno BG 17 9029 410437
Cernusco Lombardone LC 17 3876 414313
Castelmarte CO 17 1320 415633
Lierna LC 17 2141 417774
Caglio CO 17 451 418225
Missaglia LC 17 8681 426906
Merone CO 17 4147 431053
Magreglio CO 18 665 431718
Nibionno LC 18 3702 435420
Caslino d'Erba CO 18 1669 437089
Paderno d'Adda LC 18 3907 440996
Ponte Lambro CO 18 4334 445330
Valbrembo BG 18 4229 449559
Monticello Brianza LC 18 4215 453774
Solza BG 18 2079 455853
Erba CO 18 16415 472268
Terno d'Isola BG 18 8014 480282
Monguzzo CO 19 2302 482584
Cassiglio BG 19 109 482693
Veduggio con Colzano MB 19 4396 487089
Presezzo BG 19 4898 491987
Cortenova LC 19 1192 493179
Renate MB 19 4129 497308
Ponte San Pietro BG 19 11478 508786
Medolago BG 19 2332 511118
Lambrugo CO 19 2466 513584
Osnago LC 19 4806 518390
Ornica BG 19 155 518545
Casatenovo LC 19 12951 531496
Sorisole BG 19 9073 540569
Verderio LC 19 5729 546298
Dossena BG 19 947 547245
Bonate Sopra BG 19 9630 556875
Ponteranica BG 20 6849 563724
Bracca BG 20 717 564441
Mozzo BG 20 7481 571922
Ronco Briantino MB 20 3456 575378
Esino Lario LC 20 745 576123

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Bergamo (119381 inhabitants)
29 Km E of Como (84495 inhabitants)
32 Km NE of Monza (122671 inhabitants)
37 Km NE of Cinisello Balsamo (75078 inhabitants)
38 Km NE of Sesto San Giovanni (81608 inhabitants)
46 Km NE of Milano (1345851 inhabitants)
47 Km NE of Rho (50434 inhabitants)
49 Km E of Varese (80799 inhabitants)
50 Km NE of Legnano (60262 inhabitants)
53 Km E of Busto Arsizio (83106 inhabitants)
55 Km E of Gallarate (53343 inhabitants)
68 Km W of Brescia (196480 inhabitants)
74 Km NE of Vigevano (63310 inhabitants)
76 Km NE of Pavia (72576 inhabitants)
78 Km NE of Novara (104380 inhabitants)
90 Km N of Piacenza (102191 inhabitants)
90 Km NW of Cremona (71901 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
Rev 1000 Md 2.5 1985-02-23
15:46:06
45.84 9.46 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-23 15:46:06 ± 0.404
Latitude 45.84 ± 0.02
Longitude 9.46 ± 0.02
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2289

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2100.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.01829
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 2289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FIN.Z. 1985-02-23T15:47:03.00 10.0 undecidable manual SN 208 0.0167 0.44 0.4
--.CTI.Z. 1985-02-23T15:46:55.50 10.0 undecidable manual SN 81 0.0138 0.46 0.4
--.PAN.Z. 1985-02-23T15:46:50.00 10.0 undecidable manual SN 80 0.0117 0.55 0.7
--.BVT.Z. 1985-02-23T15:46:50.00 10.0 undecidable manual SN 169 0.0125 -1.5 0.1
--.PAG.Z. 1985-02-23T15:46:46.10 10.0 undecidable manual SN 74 0.0102 0.55 0.7
--.DDS.Z. 1985-02-23T15:46:45.90 10.0 undecidable manual SN 87 0.0108 -1.24 0.3
--.SLE.Z. 1985-02-23T15:46:42.30 10.0 undecidable manual PN 341 0.0183 0.93 1.2
--.ORO.Z. 1985-02-23T15:46:41.50 10.0 undecidable manual SG 258 0.0094 -1.73 0.1
--.ORX.Z. 1985-02-23T15:46:41.50 10.0 undecidable manual SG 259 0.0094 -1.68 0.1
--.BAL.Z. 1985-02-23T15:46:40.30 10.0 undecidable manual SG 93 0.0088 -0.68 0.6
--.ROB.Z. 1985-02-23T15:46:40.50 10.0 undecidable manual PN 216 0.0171 0.95 0.6
--.FIN.Z. 1985-02-23T15:46:39.00 10.0 undecidable manual PN 208 0.0167 0.08 1.2
--.ZUL.Z. 1985-02-23T15:46:39.50 10.0 undecidable manual PN 336 0.0161 1.4 0.3
--.VEA.Z. 1985-02-23T15:46:38.20 10.0 undecidable manual SG 173 0.0086 -2.04 0
--.CTI.Z. 1985-02-23T15:46:35.50 10.0 undecidable manual PN 81 0.0138 0.93 0.7
--.SAL.Z. 1985-02-23T15:46:34.00 10.0 undecidable manual SG 107 0.007 -0.58 0.7
--.CAV.Z. 1985-02-23T15:46:34.40 10.0 undecidable manual PN 71 0.0131 0.87 0.8
--.BVT.Z. 1985-02-23T15:46:33.20 10.0 undecidable manual PN 169 0.0125 0.67 1
--.PAN.Z. 1985-02-23T15:46:31.60 10.0 undecidable manual PN 80 0.0117 0.25 1.4
--.MUO.Z. 1985-02-23T15:46:31.40 10.0 undecidable manual PN 334 0.0113 0.58 2.3
--.DDS.Z. 1985-02-23T15:46:29.80 10.0 undecidable manual PN 87 0.0108 -0.21 1.5
--.PAG.Z. 1985-02-23T15:46:29.00 10.0 undecidable manual PN 74 0.0102 -0.1 1.5
--.ORO.Z. 1985-02-23T15:46:27.50 10.0 undecidable manual PG 258 0.0094 -0.25 1.5
--.MMK.Z. 1985-02-23T15:46:27.60 10.0 undecidable manual PG 282 0.0095 -0.28 2.9
--.LLS.Z. 1985-02-23T15:46:27.40 10.0 undecidable manual PG 343 0.0095 -0.41 2.7
--.ORX.Z. 1985-02-23T15:46:26.90 10.0 undecidable manual PG 259 0.0094 -0.83 0.9
--.BAL.Z. 1985-02-23T15:46:26.30 10.0 undecidable manual PG 93 0.0088 -0.16 1.5
--.VEA.Z. 1985-02-23T15:46:26.60 10.0 undecidable manual PG 173 0.0086 0.57 1.2
--.OSS.Z. 1985-02-23T15:46:25.20 10.0 undecidable manual PG 29 0.0087 -1.04 1.3
--.VAI.N. 1985-02-23T15:46:24.00 10.0 undecidable manual SG 273 0.0043 -0.84 0.4
--.SAL.Z. 1985-02-23T15:46:23.50 10.0 undecidable manual PG 107 0.007 0.73 1
--.RNI.Z. 1985-02-23T15:46:21.80 10.0 undecidable manual PG? 80 0.0075 -2 0
--.VDL.Z. 1985-02-23T15:46:19.40 10.0 undecidable manual PG 0 0.0057 -0.82 1.8
--.VAI.Z. 1985-02-23T15:46:18.00 10.0 undecidable manual PG 273 0.0043 0.86 1.7
--.BG1.Z. 1985-02-23T15:46:11.00 10.0 undecidable manual PG 109 0.0016 0.07 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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