Earthquake with magnitude of Md 2.5 on date 20-07-1988 and time 19:58:19 (Italy) in region E Spadafora (ME)

A magnitude Md 2.5 earthquake occured in region: E Spadafora (ME), on

  • 20-07-1988 17:58:19 (UTC)
  • 20-07-1988 19:58:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2220, 15.3780 at 122 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 0 5021 5021
Venetico ME 1 3911 8932
Valdina ME 3 1355 10287
Torregrotta ME 4 7431 17718
Roccavaldina ME 4 1133 18851
Villafranca Tirrena ME 5 8584 27435
Saponara ME 6 3988 31423
Rometta ME 6 6650 38073
CondrĂ² ME 7 493 38566
Monforte San Giorgio ME 7 2777 41343
San Pier Niceto ME 7 2837 44180
Pace del Mela ME 8 6239 50419
Gualtieri SicaminĂ² ME 8 1807 52226
San Filippo del Mela ME 11 7115 59341
Milazzo ME 12 31646 90987
Santa Lucia del Mela ME 12 4650 95637
Merì ME 13 2338 97975
Messina ME 16 238439 336414
Barcellona Pozzo di Gotto ME 16 41583 377997
Itala ME 20 1640 379637
Castroreale ME 20 2504 382141

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km W of Messina (238439 inhabitants)
26 Km NW of Reggio di Calabria (183035 inhabitants)
70 Km N of Acireale (52622 inhabitants)
84 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
Md 2.5
ML-VAX 2.1
1988-07-20
17:58:19
38.222 15.378 122 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 73829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-20 17:58:19 ± 1.515
Latitude 38.2220 ± 0.0713
Longitude 15.3780 ± 0.1588
Depth (km) 122 ± 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 73829

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) 15975.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.01538
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 73829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:44

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 73829
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(km) Takeoff_angle Residual Weight
--.GA2.Z. 1988-07-20T17:58:51.20 10.0 undecidable manual S 98 0.3552 1.02 0.1
--.SOI.Z. 1988-07-20T17:58:50.84 10.0 undecidable manual S 105 0.5439 -1.22 0
--.MO9.Z. 1988-07-20T17:58:50.51 10.0 undecidable manual S 131 0.3219 0.54 0.3
--.CSI.Z. 1988-07-20T17:58:49.29 10.0 undecidable manual P 24 1.7094 -0.86 0.2
--.ATN.Z. 1988-07-20T17:58:47.97 10.0 undecidable manual S 134 0.0888 -0.84 0.1
--.CZI.Z. 1988-07-20T17:58:44.31 10.0 undecidable manual P 30 1.1544 0.51 1.1
--.SOI.Z. 1988-07-20T17:58:38.31 10.0 negative manual P 105 0.5439 -0.14 2.6
--.FE2.Z. 1988-07-20T17:58:38.54 10.0 undecidable manual P 108 0.5883 -0.14 2.5
--.GA2.Z. 1988-07-20T17:58:37.68 10.0 undecidable manual P 98 0.3552 0.32 2.2
--.MO9.Z. 1988-07-20T17:58:37.68 10.0 undecidable manual P 131 0.3219 0.45 0.9
--.ATN.Z. 1988-07-20T17:58:36.70 10.0 undecidable manual P 134 0.0888 -0.5 0.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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