Earthquake with magnitude of Md 2.4 on date 21-05-1989 and time 00:28:18 (Italy) in region 1 km S Nicosia (EN)

A magnitude Md 2.4 earthquake occured in region: 1 km S Nicosia (EN), on

  • 20-05-1989 22:28:18 (UTC)
  • 21-05-1989 00:28:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7430, 14.4010 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
Nicosia EN 1 13899 13899
Sperlinga EN 5 805 14704
Nissoria EN 11 3000 17704
Leonforte EN 11 13439 31143
Cerami EN 12 2006 33149
Gagliano Castelferrato EN 12 3593 36742
Assoro EN 13 5191 41933
Capizzi ME 14 3176 45109
Agira EN 14 8345 53454
Castel di Lucio ME 18 1294 54748
Troina EN 18 9373 64121
Gangi PA 18 6811 70932

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Caltanissetta (63360 inhabitants)
66 Km W of Catania (314555 inhabitants)
69 Km W of Acireale (52622 inhabitants)
76 Km N of Gela (75827 inhabitants)
87 Km NE of Agrigento (59770 inhabitants)
87 Km E of Bagheria (55387 inhabitants)
89 Km N of Vittoria (63339 inhabitants)
95 Km N of Ragusa (73313 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 2.4
ML-VAX 1.7
1989-05-20
22:28:18
37.743 14.401 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 91799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-05-20 22:28:18 ± 0.595
Latitude 37.7430 ± 0.0099
Longitude 14.4010 ± 0.0139
Depth (km) 10 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 91799

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) 1645.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.01222
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 91799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:26:06

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 91799
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
--.PZI.Z. 1989-05-20T22:28:45.83 10.0 undecidable manual SG 147 0.8103 -0.62 0.1
--.MEU.Z. 1989-05-20T22:28:44.40 10.0 undecidable manual SG 151 0.7104 0.63 0.1
--.USI.Z. 1989-05-20T22:28:42.68 10.0 undecidable manual PN 315 1.3542 -0.52 0.3
--.MO9.Z. 1989-05-20T22:28:38.93 10.0 undecidable manual PN 75 1.0434 -0.02 1.3
--.PZI.Z. 1989-05-20T22:28:34.40 10.0 undecidable manual PG 147 0.8103 -0.19 1.3
--.MEU.Z. 1989-05-20T22:28:33.11 10.0 undecidable manual PG 151 0.7104 0.28 1.1
--.GIB.Z. 1989-05-20T22:28:33.34 10.0 undecidable manual SG 310 0.3774 0.61 0.1
--.MNO.Z. 1989-05-20T22:28:30.40 10.0 undecidable manual SG 50 0.2997 0.04 0.7
--.GIB.Z. 1989-05-20T22:28:26.69 10.0 undecidable manual PG 310 0.3774 0.02 1.7
--.MNO.Z. 1989-05-20T22:28:25.10 10.0 negative manual PG 50 0.2997 0.02 3.4
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