Earthquake with magnitude of Md 2.3 on date 26-10-1988 and time 13:31:15 (Italy) in region 3 km N Samolaco (SO)

A magnitude Md 2.3 earthquake occured in region: 3 km N Samolaco (SO), on

  • 26-10-1988 12:31:15 (UTC)
  • 26-10-1988 13:31:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.2680, 9.3940 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
Samolaco SO 3 2888 2888
Gordona SO 3 1959 4847
Mese SO 4 1800 6647
Prata Camportaccio SO 4 2952 9599
Chiavenna SO 6 7379 16978
Novate Mezzola SO 7 1882 18860
Piuro SO 7 1929 20789
San Giacomo Filippo SO 8 373 21162
Verceia SO 9 1134 22296
Montemezzo CO 10 243 22539
Villa di Chiavenna SO 10 1010 23549
Sorico CO 11 1246 24795
Gera Lario CO 11 1027 25822
Trezzone CO 11 239 26061
Vercana CO 13 757 26818
Livo CO 13 172 26990
Dubino SO 14 3675 30665
Domaso CO 14 1472 32137
Cino SO 14 367 32504
Peglio CO 14 167 32671
Mantello SO 15 756 33427
Dosso del Liro CO 15 264 33691
Gravedona ed Uniti CO 15 4218 37909
Colico LC 15 7724 45633
Cercino SO 15 784 46417
Piantedo SO 15 1357 47774
Delebio SO 15 3207 50981
Campodolcino SO 15 985 51966
Andalo Valtellino SO 16 548 52514
Rogolo SO 16 558 53072
Stazzona CO 17 615 53687
Traona SO 17 2715 56402
Mello SO 17 952 57354
Dongo CO 18 3432 60786
Madesimo SO 18 525 61311
Garzeno CO 18 806 62117
Civo SO 19 1109 63226
Dorio LC 19 327 63553
Cosio Valtellino SO 19 5498 69051
Musso CO 20 1001 70052
Val Masino SO 20 908 70960
Dazio SO 20 453 71413

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km NE of Como (84495 inhabitants)
67 Km NE of Varese (80799 inhabitants)
67 Km NW of Bergamo (119381 inhabitants)
77 Km N of Monza (122671 inhabitants)
80 Km N of Cinisello Balsamo (75078 inhabitants)
82 Km NE of Gallarate (53343 inhabitants)
83 Km N of Sesto San Giovanni (81608 inhabitants)
83 Km NE of Legnano (60262 inhabitants)
84 Km NE of Busto Arsizio (83106 inhabitants)
87 Km NE of Rho (50434 inhabitants)
90 Km N 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
Md 2.3 1988-10-26
12:31:15
46.268 9.394 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 79829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-26 12:31:15 ± 0.299
Latitude 46.2680 ± 0.0177
Longitude 9.3940 ± 0.0310
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 79829

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) 3090.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00907
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 79829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:15:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.OSS.Z. 1988-10-26T12:31:38.20 10.0 undecidable manual SG 50 0.6549 -1.21 0.1
--.VAI.Z. 1988-10-26T12:31:37.00 10.0 undecidable manual SG 227 0.5883 0.02 0.8
--.LLS.Z. 1988-10-26T12:31:37.30 10.0 undecidable manual SG 335 0.6327 -1.25 0.1
--.MMK.Z. 1988-10-26T12:31:35.40 10.0 undecidable manual PG 258 1.0101 -0.22 1.3
--.MUO.Z. 1988-10-26T12:31:33.50 10.0 undecidable manual PG 325 0.8658 0.48 1.1
--.TMA.Z. 1988-10-26T12:31:29.50 10.0 undecidable manual SG 246 0.3885 -1 0.2
--.OSS.Z. 1988-10-26T12:31:29.00 10.0 undecidable manual PG 50 0.6549 -0.18 1.7
--.LLS.Z. 1988-10-26T12:31:28.90 10.0 undecidable manual PG 335 0.6327 0.22 1.7
--.VAI.Z. 1988-10-26T12:31:28.00 10.0 undecidable manual PG 227 0.5883 0.22 1.8
--.TMA.Z. 1988-10-26T12:31:24.20 10.0 undecidable manual PG 246 0.3885 0.16 1.9
--.VDL.Z. 1988-10-26T12:31:23.70 10.0 undecidable manual SG 13 0.2109 -0.31 0.7
--.VDL.Z. 1988-10-26T12:31:21.10 10.0 undecidable manual PG 13 0.2109 0.82 0.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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