Earthquake with magnitude of Md 1.9 on date 27-09-1992 and time 12:12:44 (UTC) in region 6 km SW Sperlinga (EN)

A magnitude Md 1.9 earthquake occured in region: 6 km SW Sperlinga (EN), on

  • 27-09-1992 12:12:44 (UTC)
  • 27-09-1992 13:12:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7400, 14.2960 at 27 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
Sperlinga EN 6 805 805
Nicosia EN 9 13899 14704
Gangi PA 10 6811 21515
Leonforte EN 14 13439 34954
Nissoria EN 16 3000 37954
Castel di Lucio ME 17 1294 39248
Assoro EN 17 5191 44439
Calascibetta EN 17 4528 48967
Alimena PA 17 2032 50999
Bompietro PA 17 1401 52400
Petralia Soprana PA 18 3360 55760
Geraci Siculo PA 18 1945 57705
Enna EN 19 28019 85724
Petralia Sottana PA 19 2821 88545
Blufi PA 19 1029 89574
Villarosa EN 20 4937 94511

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Caltanissetta (63360 inhabitants)
75 Km W of Catania (314555 inhabitants)
75 Km N of Gela (75827 inhabitants)
78 Km W of Acireale (52622 inhabitants)
79 Km SE of Bagheria (55387 inhabitants)
79 Km NE of Agrigento (59770 inhabitants)
90 Km N of Vittoria (63339 inhabitants)
92 Km E of Palermo (674435 inhabitants)
98 Km NW 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 1.9
ML-VAX 2.4
1992-09-27
12:12:44
37.74 14.296 27 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 174159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-09-27 12:12:44 ± 0.925
Latitude 37.7400 ± 0.0350
Longitude 14.2960 ± 0.0714
Depth (km) 27 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 174159

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) 7388.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 263
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.00907
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 174159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:43:00

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 174159
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
--.ATN.Z. 1992-09-27T12:13:15.00 10.0 undecidable manual SN 65 1.0101 -0.77 0.4
--.SA1.Z. 1992-09-27T12:13:15.25 10.0 undecidable manual SN 27 0.9213 1.52 0
--.AU9.Z. 1992-09-27T12:13:12.46 10.0 undecidable manual SN 123 0.8769 -0.21 0.8
--.ATN.Z. 1992-09-27T12:13:02.94 10.0 undecidable manual PN 65 1.0101 0.33 1.6
--.AU9.Z. 1992-09-27T12:13:01.80 10.0 undecidable manual PN 123 0.8769 0.25 1.8
--.SA1.Z. 1992-09-27T12:13:00.51 10.0 undecidable manual PN 27 0.9213 -0.92 0.7
--.MNO.Z. 1992-09-27T12:12:59.50 10.0 undecidable manual SG 58 0.3663 -0.29 0.8
--.MNO.Z. 1992-09-27T12:12:53.63 10.0 undecidable manual PG 58 0.3663 0.25 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download