Earthquake with magnitude of mb 4.2 on date 01-09-1986 and time 01:02:59 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude mb 4.2 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 01-09-1986 01:02:59 (UTC)
  • 01-09-1986 03:02:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.29, 15.33 at 180 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
Spadafora ME 8 5021 5021
Venetico ME 8 3911 8932
Villafranca Tirrena ME 11 8584 17516
Milazzo ME 11 31646 49162
Torregrotta ME 11 7431 56593
Valdina ME 11 1355 57948
Pace del Mela ME 12 6239 64187
Roccavaldina ME 13 1133 65320
CondrĂ² ME 13 493 65813
Saponara ME 14 3988 69801
Gualtieri SicaminĂ² ME 14 1807 71608
San Filippo del Mela ME 14 7115 78723
San Pier Niceto ME 15 2837 81560
Rometta ME 15 6650 88210
Merì ME 16 2338 90548
Monforte San Giorgio ME 16 2777 93325
Santa Lucia del Mela ME 17 4650 97975
Barcellona Pozzo di Gotto ME 19 41583 139558

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Messina (238439 inhabitants)
34 Km NW of Reggio di Calabria (183035 inhabitants)
77 Km N of Acireale (52622 inhabitants)
90 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
Rev 1000 mb 4.2 1986-09-01
01:02:59
38.29 15.33 180 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 33359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-01 01:02:59 ± 1.233
Latitude 38.29 ± 0.05
Longitude 15.33 ± 0.06
Depth (km) 180 ± 12 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 33359

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) 7850
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.0017
Epicentral distance of station farthest from the epicenter (degree) 0.03643
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitude information

mb:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude mb
Reference to an origin 33359
Agency INGV
Autore ISC
Time of creation (UTC) 2013-01-09 08:13:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.RMP.Z. 1986-09-01T01:04:02.70 10.0 undecidable manual P 331 0.0364 0.7 0.5
--.SD1.Z. 1986-09-01T01:03:56.60 10.0 undecidable manual P 341 0.0325 0.36 0.7
--.PT9.Z. 1986-09-01T01:03:48.50 10.0 undecidable manual P 241 0.0273 -0.47 0.5
--.BAI.Z. 1986-09-01T01:03:48.30 10.0 positive manual P 22 0.0274 -0.99 0.8
--.LCI.Z. 1986-09-01T01:03:48.00 10.0 undecidable manual P 45 0.0266 -0.18 0.9
--.BRT.Z. 1986-09-01T01:03:47.00 10.0 positive manual P 28 0.0264 -0.83 1
--.SGO.Z. 1986-09-01T01:03:40.00 10.0 positive manual P 359 0.0204 0.19 2
--.ORI.Z. 1986-09-01T01:03:38.00 10.0 undecidable manual P 25 0.0176 1.65 0.1
--.ERC.Z. 1986-09-01T01:03:38.50 10.0 undecidable manual P 264 0.0195 -0.2 0.9
--.FAI.Z. 1986-09-01T01:03:34.80 10.0 positive manual P 232 0.0149 1.58 0.5
--.ROI.Z. 1986-09-01T01:03:33.80 10.0 undecidable manual P 36 0.0143 1.22 0.4
--.CSI.Z. 1986-09-01T01:03:33.70 10.0 undecidable manual P 26 0.015 0.41 1
--.MMN.Z. 1986-09-01T01:03:33.00 10.0 undecidable manual P 17 0.0151 -0.38 1.1
--.CZI.Z. 1986-09-01T01:03:28.20 10.0 undecidable manual P 33 0.01 0.02 1.2
--.GR9.Z. 1986-09-01T01:03:27.70 10.0 negative manual P 58 0.009 0.39 2.1
--.GIB.Z. 1986-09-01T01:03:26.60 10.0 undecidable manual P 254 0.0096 -1.19 0.3
--.SO9.Z. 1986-09-01T01:03:25.00 10.0 positive manual P 110 0.0054 0.24 2.3
--.MS9.Z. 1986-09-01T01:03:24.60 10.0 positive manual P 234 0.0055 -0.2 2.2
--.MT1.Z. 1986-09-01T01:03:23.90 10.0 undecidable manual P 132 0.0036 0.03 1.2
--.GZI.Z. 1986-09-01T01:03:22.60 10.0 undecidable manual P 96 0.0019 -0.78 0.7
--.MSI.Z. 1986-09-01T01:03:22.30 10.0 undecidable manual P 116 0.0017 -1.03 0.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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