Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.8 on date 25-03-1993 and time 05:16:39 (Italy) in region W Demonte (CN)

A magnitude Md 1.8 earthquake occured in region: W Demonte (CN), on

  • 25-03-1993 04:16:39 (UTC)
  • 25-03-1993 05:16:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3160, 7.2970 at 14 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
Demonte CN 0 2003 2003
Aisone CN 6 248 2251
Valloriate CN 7 109 2360
Moiola CN 7 234 2594
Valdieri CN 9 935 3529
Gaiola CN 9 582 4111
Rittana CN 9 109 4220
Vinadio CN 10 644 4864
Monterosso Grana CN 11 505 5369
Pradleves CN 12 250 5619
Entracque CN 12 774 6393
Roccasparvera CN 12 741 7134
Castelmagno CN 12 66 7200
Valgrana CN 13 786 7986
Roaschia CN 14 107 8093
Bernezzo CN 14 4104 12197
Roccavione CN 15 2761 14958
Vignolo CN 15 2600 17558
Montemale di Cuneo CN 15 241 17799
Borgo San Dalmazzo CN 15 12468 30267
Caraglio CN 16 6836 37103
Cervasca CN 16 5013 42116
Robilante CN 17 2306 44422
Sambuco CN 18 92 44514
Dronero CN 18 7035 51549
Cartignano CN 18 190 51739
Roccabruna CN 18 1585 53324
San Damiano Macra CN 20 430 53754
Villar San Costanzo CN 20 1547 55301

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km W of Cuneo (56081 inhabitants)
67 Km NW of Sanremo (54807 inhabitants)
82 Km SW of Moncalieri (57294 inhabitants)
90 Km SW of Torino (890529 inhabitants)
94 Km W of Savona (61345 inhabitants)
97 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 1.8
M 2.1 		1993-03-25
04:16:39		 44.316 7.297 14 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 182549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-03-25 04:16:39 ± 0.157
Latitude 44.3160 ± 0.0118
Longitude 7.2970 ± 0.0208
Depth (km) 14 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 182549

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) 2112.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.01141
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 182549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:51:18

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 182549
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
--.LMR.Z. 1993-03-25T04:17:16.20 10.0 undecidable manual SN 210 1.1322 -0.23 0.5
--.FRF.Z. 1993-03-25T04:17:08.60 10.0 undecidable manual SG 212 0.8769 -1.62 0
--.CDR.Z. 1993-03-25T04:17:03.50 10.0 undecidable manual PN 240 1.2654 0.64 0.6
--.LMR.Z. 1993-03-25T04:17:01.39 10.0 undecidable manual PN 210 1.1322 0.44 0.9
--.FRF.Z. 1993-03-25T04:16:57.10 10.0 undecidable manual PG 212 0.8769 -0.27 1.3
--.PCP.Z. 1993-03-25T04:16:57.71 10.0 undecidable manual PG 75 0.9213 -0.22 1.3
--.RSP.Z. 1993-03-25T04:16:56.90 10.0 undecidable manual PG 358 0.8214 -0.32 1.3
--.SBF.Z. 1993-03-25T04:16:55.50 10.0 undecidable manual SG 167 0.4551 -1.14 0.1
--.RRL.Z. 1993-03-25T04:16:53.75 10.0 undecidable manual PG 329 0.6993 -0.24 1.5
--.FIN.Z. 1993-03-25T04:16:52.70 10.0 undecidable manual PG 99 0.6549 -0.5 1.2
--.IMI.Z. 1993-03-25T04:16:51.52 10.0 undecidable manual PG 133 0.5883 -0.33 1.5
--.SBF.Z. 1993-03-25T04:16:49.69 10.0 undecidable manual PG 167 0.4551 0.17 1.7
--.BHB.Z. 1993-03-25T04:16:49.59 10.0 undecidable manual PG 357 0.5106 -0.96 0.5
--.ROB.Z. 1993-03-25T04:16:48.64 10.0 undecidable manual PG 91 0.3996 0.05 1.8
--.DOI.Z. 1993-03-25T04:16:48.00 10.0 undecidable manual SG 348 0.1887 -0.14 0.7
--.PZZ.Z. 1993-03-25T04:16:46.70 10.0 undecidable manual PG 323 0.2331 0.69 0.9
--.DOI.Z. 1993-03-25T04:16:44.50 10.0 undecidable manual PG 348 0.1887 -0.12 1.7
--.ENR.Z. 1993-03-25T04:16:44.19 10.0 undecidable manual PG 135 0.1221 0.63 1
--.STV.Z. 1993-03-25T04:16:43.87 10.0 undecidable manual PG 159 0.0666 1.02 0.4
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