Earthquake with magnitude of Md 2.5 on date 28-02-1988 and time 07:00:33 (Italy) in region 2 km E Valbondione (BG)

A magnitude Md 2.5 earthquake occured in region: 2 km E Valbondione (BG), on

  • 28-02-1988 06:00:33 (UTC)
  • 28-02-1988 07:00:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.0390, 10.0370 at 0 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
Valbondione BG 2 1065 1065
Vilminore di Scalve BG 6 1493 2558
Colere BG 8 1136 3694
Gandellino BG 9 1012 4706
Azzone BG 9 406 5112
Schilpario BG 10 1201 6313
Gromo BG 11 1213 7526
Valgoglio BG 12 597 8123
Castello dell'Acqua SO 12 622 8745
Ardesio BG 14 3518 12263
Castione della Presolana BG 15 3452 15715
Chiuro SO 15 2534 18249
Teglio SO 15 4540 22789
Piateda SO 16 2219 25008
Oltressenda Alta BG 16 161 25169
Aprica SO 16 1588 26757
Ponte in Valtellina SO 16 2362 29119
Faedo Valtellino SO 16 566 29685
Onore BG 16 866 30551
Villa d'Ogna BG 17 1920 32471
Borno BS 17 2630 35101
Tresivio SO 17 2030 37131
Fino del Monte BG 17 1130 38261
Rovetta BG 17 4075 42336
Bianzone SO 17 1285 43621
Poggiridenti SO 17 1924 45545
Clusone BG 18 8610 54155
Songavazzo BG 18 719 54874
Piario BG 18 1095 55969
Ossimo BS 18 1451 57420
Lozio BS 18 398 57818
Angolo Terme BS 18 2447 60265
Albosaggia SO 19 3094 63359
Montagna in Valtellina SO 19 3032 66391
Cerete BG 19 1610 68001
Carona BG 19 335 68336
Sondrio SO 20 21778 90114
Piancogno BS 20 4640 94754
Villa di Tirano SO 20 3000 97754

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Bergamo (119381 inhabitants)
57 Km N of Brescia (196480 inhabitants)
78 Km NE of Monza (122671 inhabitants)
78 Km E of Como (84495 inhabitants)
83 Km NE of Cinisello Balsamo (75078 inhabitants)
84 Km NE of Sesto San Giovanni (81608 inhabitants)
84 Km W of Trento (117317 inhabitants)
91 Km NE of Milano (1345851 inhabitants)
96 Km NE of Rho (50434 inhabitants)
97 Km E of Varese (80799 inhabitants)
100 Km E of Legnano (60262 inhabitants)
100 Km NW of Verona (258765 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
Md 2.5
ML-VAX 1.6
1988-02-28
06:00:33
46.039 10.037 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 63659
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-02-28 06:00:33 ± 0.885
Latitude 46.0390 ± 0.1201
Longitude 10.0370 ± 0.0340
Depth (km) 0 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 63659

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) 13606.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00801
Epicentral distance of station farthest from the epicenter (degree) 0.01773
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 63659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:00:24

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 63659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FVI.Z. 1988-02-28T06:01:34.30 10.0 undecidable manual SN 71 1.9647 0.11 0.8
--.CTI.Z. 1988-02-28T06:01:12.71 10.0 undecidable manual SG 88 1.11 -0.84 0.3
--.FVI.Z. 1988-02-28T06:01:08.46 10.0 undecidable manual PN 71 1.9647 -0.06 1.9
--.VAI.Z. 1988-02-28T06:01:07.00 10.0 undecidable manual SG 258 0.888 0.58 0.5
--.CTI.Z. 1988-02-28T06:00:57.23 10.0 undecidable manual PG 88 1.11 0.46 1.6
--.VAI.Z. 1988-02-28T06:00:51.92 10.0 undecidable manual PG 258 0.888 -0.73 0.9
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