Earthquake with magnitude of ML-VAX 2.5 on date 17-09-1986 and time 02:00:57 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML-VAX 2.5 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 17-09-1986 00:00:57 (UTC)
  • 17-09-1986 02:00:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.32, 15.38 at 129 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
Villafranca Tirrena ME 10 8584 8584
Spadafora ME 11 5021 13605
Venetico ME 11 3911 17516
Valdina ME 14 1355 18871
Torregrotta ME 14 7431 26302
Saponara ME 15 3988 30290
Roccavaldina ME 15 1133 31423
Milazzo ME 16 31646 63069
Rometta ME 16 6650 69719
CondrĂ² ME 17 493 70212
Pace del Mela ME 17 6239 76451
San Pier Niceto ME 18 2837 79288
Monforte San Giorgio ME 18 2777 82065
Gualtieri SicaminĂ² ME 18 1807 83872
San Filippo del Mela ME 19 7115 90987

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Messina (238439 inhabitants)
33 Km NW of Reggio di Calabria (183035 inhabitants)
81 Km N of Acireale (52622 inhabitants)
94 Km N of Catania (314555 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
ML-VAX 2.5 1986-09-17
00:00:57
38.32 15.38 129 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 34249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-17 00:00:57 ± 1.181
Latitude 38.32 ± 0.05
Longitude 15.38 ± 0.08
Depth (km) 129 ± 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34249

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) 8987.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 249
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.0034
Epicentral distance of station farthest from the epicenter (degree) 0.01635
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 34249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SO9.Z. 1986-09-17T00:01:32.50 10.0 undecidable manual S 115 0.0052 0.56 0.2
--.MG9.Z. 1986-09-17T00:01:30.50 10.0 undecidable manual P 4 0.0164 0.51 0.4
--.CZI.Z. 1986-09-17T00:01:21.10 10.0 undecidable manual P 33 0.0096 -0.55 0.4
--.RI2.Z. 1986-09-17T00:01:20.10 10.0 undecidable manual P 83 0.0078 0.34 1
--.GR9.Z. 1986-09-17T00:01:20.50 10.0 undecidable manual P 58 0.0086 -0.07 1.5
--.DR2.Z. 1986-09-17T00:01:17.00 10.0 undecidable manual P 53 0.0049 -0.27 1.2
--.SO9.Z. 1986-09-17T00:01:17.50 10.0 undecidable manual P 115 0.0052 -0.06 1.6
--.GA2.Z. 1986-09-17T00:01:16.30 10.0 undecidable manual P 113 0.0034 -0.13 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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