Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 22-05-1990 and time 03:19:36 (Italy) in region 1 km E Acceglio (CN)

A magnitude Md 2.1 earthquake occured in region: 1 km E Acceglio (CN), on

  • 22-05-1990 01:19:36 (UTC)
  • 22-05-1990 03:19:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4760, 7.0100 at 9 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
Acceglio CN 1 162 162
Prazzo CN 4 170 332
Canosio CN 6 80 412
Marmora CN 7 68 480
Elva CN 10 97 577
Stroppo CN 10 103 680
Argentera CN 11 83 763
Bellino CN 12 109 872
Celle di Macra CN 14 100 972
Casteldelfino CN 14 157 1129
Macra CN 14 59 1188
Pietraporzio CN 15 77 1265
Sambuco CN 16 92 1357
Pontechianale CN 16 179 1536
Castelmagno CN 18 66 1602
Sampeyre CN 18 1022 2624
San Damiano Macra CN 20 430 3054

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Cuneo (56081 inhabitants)
79 Km SW of Moncalieri (57294 inhabitants)
85 Km SW of Torino (890529 inhabitants)
96 Km NW of Sanremo (54807 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 2.1
M 2.2 		1990-05-22
01:19:36		 44.476 7.01 9 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 119329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-22 01:19:36 ± 0.21
Latitude 44.4760 ± 0.0073
Longitude 7.0100 ± 0.0146
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 119329

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) 1412.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01077
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 119329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:50:46

M:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 119329
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
--.LRG.Z. 1990-05-22T01:20:14.40 10.0 undecidable manual SN 204 1.11 -0.06 0.5
--.LPG.Z. 1990-05-22T01:20:12.20 10.0 undecidable manual SG 350 1.0323 -0.2 0.5
--.CKI.Z. 1990-05-22T01:20:08.00 10.0 undecidable manual SG 93 0.8991 -0.21 0.5
--.FRF.Z. 1990-05-22T01:20:07.00 10.0 undecidable manual SG! 196 0.9435 -2.65 0
--.LMR.Z. 1990-05-22T01:19:59.60 10.0 undecidable manual PN 197 1.1988 -0.04 1.2
--.LRG.Z. 1990-05-22T01:19:59.30 10.0 undecidable manual PN 204 1.11 0.68 0.3
--.PCP.Z. 1990-05-22T01:19:58.84 10.0 undecidable manual PN 86 1.0878 0.59 0.5
--.SBF.Z. 1990-05-22T01:19:58.60 10.0 undecidable manual SG! 153 0.6882 -2.46 0
--.BNI.Z. 1990-05-22T01:19:58.60 10.0 undecidable manual SG 338 0.6216 -0.47 0.3
--.LPG.Z. 1990-05-22T01:19:57.40 10.0 undecidable manual PG 350 1.0323 -0.03 1.3
--.LPL.Z. 1990-05-22T01:19:57.80 10.0 undecidable manual PN 349 1.0545 0.07 1.3
--.LSD.Z. 1990-05-22T01:19:57.20 10.0 undecidable manual PG 6 0.9768 0.71 0.3
--.FRF.Z. 1990-05-22T01:19:55.20 10.0 undecidable manual PG 196 0.9435 -0.64 0.4
--.CKI.Z. 1990-05-22T01:19:54.00 10.0 undecidable manual PG 93 0.8991 -1.01 0.1
--.FIN.Z. 1990-05-22T01:19:54.94 10.0 undecidable manual PG 107 0.888 0.1 1.4
--.IMI.Z. 1990-05-22T01:19:53.91 10.0 undecidable manual PG 131 0.8436 -0.02 1.5
--.ROB.Z. 1990-05-22T01:19:50.43 10.0 undecidable manual PG 105 0.6327 0.36 1
--.SBF.Z. 1990-05-22T01:19:50.70 10.0 undecidable manual PG 153 0.6882 -0.19 1.4
--.BNI.Z. 1990-05-22T01:19:49.39 10.0 positive manual PG 338 0.6216 -0.35 2.2
--.RRL.Z. 1990-05-22T01:19:47.25 10.0 undecidable manual PG 340 0.4662 0.29 1.2
--.ENR.Z. 1990-05-22T01:19:45.46 10.0 undecidable manual PG 130 0.3774 0.12 1.5
--.STV.Z. 1990-05-22T01:19:44.28 10.0 undecidable manual PG 134 0.3108 0.14 1.5
--.DOI.Z. 1990-05-22T01:19:43.99 10.0 undecidable manual SG 80 0.1665 -0.22 0.5
--.DOI.Z. 1990-05-22T01:19:41.40 10.0 positive manual PG 80 0.1665 0.24 2.6
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