Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 25-12-1988 and time 14:24:41 (UTC) in region 2 km S Roccasparvera (CN)

A magnitude Md 2.0 earthquake occured in region: 2 km S Roccasparvera (CN), on

  • 25-12-1988 14:24:41 (UTC)
  • 25-12-1988 15:24:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3210, 7.4410 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.

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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
Roccasparvera CN 2 741 741
Gaiola CN 3 582 1323
Roccavione CN 3 2761 4084
Borgo San Dalmazzo CN 4 12468 16552
Moiola CN 4 234 16786
Rittana CN 5 109 16895
Vignolo CN 5 2600 19495
Valloriate CN 6 109 19604
Roaschia CN 6 107 19711
Valdieri CN 6 935 20646
Robilante CN 6 2306 22952
Cervasca CN 7 5013 27965
Bernezzo CN 8 4104 32069
Boves CN 9 9835 41904
Entracque CN 9 774 42678
Caraglio CN 11 6836 49514
Valgrana CN 11 786 50300
Vernante CN 11 1178 51478
Demonte CN 11 2003 53481
Cuneo CN 12 56081 109562
Monterosso Grana CN 14 505 110067
Montemale di Cuneo CN 14 241 110308
Peveragno CN 14 5543 115851
Pradleves CN 17 250 116101
Limone Piemonte CN 17 1485 117586
Beinette CN 17 3423 121009
Dronero CN 17 7035 128044
Aisone CN 17 248 128292
Villar San Costanzo CN 19 1547 129839
Chiusa di Pesio CN 19 3676 133515
Roccabruna CN 19 1585 135100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SW of Cuneo (56081 inhabitants)
62 Km NW of Sanremo (54807 inhabitants)
78 Km S of Moncalieri (57294 inhabitants)
83 Km W of Savona (61345 inhabitants)
86 Km S of Torino (890529 inhabitants)
88 Km SW of Asti (76202 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 2.0
M 2.6 		1988-12-25
14:24:41		 44.321 7.441 9 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 83989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-12-25 14:24:41 ± 0.21
Latitude 44.3210 ± 0.0172
Longitude 7.4410 ± 0.0179
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 83989

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) 2386.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00753
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 83989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:18:52

M:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 83989
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. 1988-12-25T14:25:09.50 10.0 undecidable manual SG 351 0.8325 -1.36 0
--.RRL.Z. 1988-12-25T14:25:08.20 10.0 undecidable manual SG 322 0.7548 -0.08 0.6
--.FIN.Z. 1988-12-25T14:25:01.90 10.0 undecidable manual SG 101 0.555 0 0.8
--.IMI.Z. 1988-12-25T14:25:00.20 10.0 undecidable manual SG 141 0.5217 -0.48 0.4
--.RSP.Z. 1988-12-25T14:24:58.10 10.0 undecidable manual PG 351 0.8325 -0.51 0.7
--.RRL.Z. 1988-12-25T14:24:57.60 10.0 undecidable manual PG 322 0.7548 0.48 0.8
--.PZZ.Z. 1988-12-25T14:24:53.90 10.0 undecidable manual SG 307 0.2997 0.23 0.7
--.FIN.Z. 1988-12-25T14:24:53.40 10.0 undecidable manual PG 101 0.555 -0.04 1.9
--.ROB.Z. 1988-12-25T14:24:53.90 10.0 undecidable manual SG 93 0.3108 0.08 0.8
--.IMI.Z. 1988-12-25T14:24:52.60 10.0 undecidable manual PG 141 0.5217 -0.13 1.9
--.DOI.Z. 1988-12-25T14:24:51.80 10.0 undecidable manual SG 322 0.222 0.53 0.4
--.ROB.Z. 1988-12-25T14:24:49.30 10.0 undecidable manual PG 93 0.3108 0.53 1
--.PZZ.Z. 1988-12-25T14:24:49.00 10.0 undecidable manual PG 307 0.2997 0.32 1.6
--.DOI.Z. 1988-12-25T14:24:47.20 10.0 undecidable manual PG 322 0.222 -0.1 2
--.STV.Z. 1988-12-25T14:24:46.40 10.0 undecidable manual SG 228 0.0999 -0.72 0.2
--.STV.Z. 1988-12-25T14:24:45.00 10.0 undecidable manual PG 228 0.0999 0.1 2.1
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