Earthquake with magnitude of M 2.2 on date 15-03-1986 and time 08:08:43 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude M 2.2 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 15-03-1986 07:08:43 (UTC)
  • 15-03-1986 08:08:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8270, 8.2730 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cervo IM 17 1187 1187
San Bartolomeo al Mare IM 18 3129 4316
Diano Marina IM 18 5977 10293
Andora SV 18 7552 17845
Laigueglia SV 19 1810 19655
Diano Castello IM 20 2214 21869

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Sanremo (54807 inhabitants)
56 Km SW of Savona (61345 inhabitants)
84 Km SW of Genova (586655 inhabitants)
85 Km SE of Cuneo (56081 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
M 2.2 1986-03-15
07:08:43
43.827 8.273 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 24149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-03-15 07:08:43 ± 0.517
Latitude 43.8270 ± 0.0240
Longitude 8.2730 ± 0.0266
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 24149

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) 3418.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 287
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00963
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

M:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 24149
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
--.SOO.Z. 1986-03-15T07:09:19.40 10.0 undecidable manual SN 309 1.0656 -0.21 0.6
--.STV.Z. 1986-03-15T07:09:10.60 10.0 undecidable manual SG 302 0.7881 -0.49 0.4
--.ENR.Z. 1986-03-15T07:09:08.80 10.0 undecidable manual SG 303 0.7326 -0.12 0.8
--.SOO.Z. 1986-03-15T07:09:04.70 10.0 undecidable manual PN 309 1.0656 0.34 1.1
--.CKI.Z. 1986-03-15T07:09:04.80 10.0 undecidable manual SG 0 0.5883 0.35 0.6
--.ROB.Z. 1986-03-15T07:09:02.40 10.0 undecidable manual SG 328 0.5439 -0.84 0.1
--.STV.Z. 1986-03-15T07:08:59.20 10.0 undecidable manual PG 302 0.7881 -0.24 1.6
--.FIN.Z. 1986-03-15T07:08:58.60 10.0 undecidable manual SG 352 0.3774 0.83 0.1
--.ENR.Z. 1986-03-15T07:08:58.50 10.0 undecidable manual PG 303 0.7326 0.31 1.5
--.IMP.Z. 1986-03-15T07:08:55.50 10.0 undecidable manual SG 288 0.2775 0.83 0.1
--.CKI.Z. 1986-03-15T07:08:55.00 10.0 undecidable manual PG 0 0.5883 -0.61 0.7
--.ROB.Z. 1986-03-15T07:08:54.90 10.0 undecidable manual PG 328 0.5439 -0.01 2.2
--.FIN.Z. 1986-03-15T07:08:51.70 10.0 undecidable manual PG 352 0.3774 -0.05 2.1
--.IMP.Z. 1986-03-15T07:08:50.10 10.0 undecidable manual PG 288 0.2775 0.14 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download