Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.8 on date 29-11-1988 and time 13:33:40 (UTC) in region 2 km NW Pontboset (AO)

A magnitude Md 1.8 earthquake occured in region: 2 km NW Pontboset (AO), on

  • 29-11-1988 13:33:40 (UTC)
  • 29-11-1988 14:33:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.6230, 7.6750 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pontboset AO 2 185 185
Issogne AO 4 1400 1585
Champorcher AO 4 388 1973
Arnad AO 5 1273 3246
Hône AO 5 1166 4412
Verrès AO 5 2696 7108
Bard AO 6 119 7227
Champdepraz AO 7 712 7939
Donnas AO 8 2563 10502
Challand-Saint-Victor AO 8 564 11066
Montjovet AO 9 1801 12867
Pont-Saint-Martin AO 10 3840 16707
Perloz AO 11 477 17184
Carema TO 12 774 17958
Emarèse AO 12 226 18184
Challand-Saint-Anselme AO 12 751 18935
Quincinetto TO 12 1031 19966
Lillianes AO 13 462 20428
Traversella TO 14 343 20771
Pontey AO 14 817 21588
Saint-Vincent AO 14 4660 26248
Tavagnasco TO 15 791 27039
Valprato Soana TO 15 108 27147
Settimo Vittone TO 15 1560 28707
Fontainemore AO 15 440 29147
Châtillon AO 15 4772 33919
Issime AO 16 423 34342
Brusson AO 16 897 35239
Trausella TO 16 119 35358
Quassolo TO 16 354 35712
Vico Canavese TO 16 849 36561
Chambave AO 17 931 37492
Meugliano TO 17 80 37572
Ronco Canavese TO 17 314 37886
Saint-Denis AO 17 378 38264
Nomaglio TO 17 287 38551
Brosso TO 18 420 38971
Rueglio TO 18 757 39728
Andrate TO 19 505 40233
Borgofranco d'Ivrea TO 19 3732 43965
Fénis AO 19 1813 45778
Verrayes AO 19 1302 47080
Gaby AO 19 468 47548
Ingria TO 19 52 47600
Lessolo TO 20 1938 49538
Alice Superiore TO 20 700 50238

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km N of Torino (890529 inhabitants)
69 Km N of Moncalieri (57294 inhabitants)
76 Km W of Novara (104380 inhabitants)
87 Km W of Gallarate (53343 inhabitants)
91 Km NW of Asti (76202 inhabitants)
92 Km W of Varese (80799 inhabitants)
92 Km W of Busto Arsizio (83106 inhabitants)
97 Km W of Legnano (60262 inhabitants)
99 Km W of Vigevano (63310 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 1.8
M 2.1 		1988-11-29
13:33:40		 45.623 7.675 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 82279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-29 13:33:40 ± 0.339
Latitude 45.6230 ± 0.0384
Longitude 7.6750 ± 0.0216
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 82279

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) 4585.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00494
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 82279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:17:20

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 82279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.RSP.Z. 1988-11-29T13:33:59.80 10.0 undecidable manual SG 212 0.5439 -0.46 0.5
--.LSD.Z. 1988-11-29T13:33:54.50 10.0 undecidable manual SG 245 0.3996 -0.76 0.3
--.RSP.Z. 1988-11-29T13:33:52.50 10.0 undecidable manual PG 212 0.5439 0.57 0.9
--.LSD.Z. 1988-11-29T13:33:49.00 10.0 undecidable manual PG 245 0.3996 -0.04 2.2
--.ORO.Z. 1988-11-29T13:33:49.00 10.0 undecidable manual SG 88 0.2109 -0.34 0.7
--.ORX.Z. 1988-11-29T13:33:48.60 10.0 undecidable manual SG 87 0.2109 -0.75 0.3
--.ORO.Z. 1988-11-29T13:33:46.00 10.0 undecidable manual PG 88 0.2109 0.38 1.7
--.ORX.Z. 1988-11-29T13:33:45.30 10.0 undecidable manual PG 87 0.2109 -0.33 0
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