Earthquake with magnitude of Md 2.1 on date 23-05-1992 and time 03:09:31 (Italy) in region 7 km SE Maletto (CT)

A magnitude Md 2.1 earthquake occured in region: 7 km SE Maletto (CT), on

  • 23-05-1992 01:09:31 (UTC)
  • 23-05-1992 03:09:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7780, 14.9170 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
Maletto CT 7 3920 3920
Bronte CT 7 19172 23092
Randazzo CT 12 10900 33992
Maniace CT 13 3765 37757
Adrano CT 15 36122 73879
Biancavilla CT 16 24007 97886
Santa Domenica Vittoria ME 16 980 98866
Ragalna CT 16 3924 102790
Santa Maria di Licodia CT 18 7641 110431
Moio Alcantara ME 18 717 111148
Milo CT 19 1087 112235
Zafferana Etnea CT 19 9517 121752
Roccella Valdemone ME 19 666 122418
CesarĂ² ME 19 2439 124857
Malvagna ME 20 733 125590

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Acireale (52622 inhabitants)
34 Km NW of Catania (314555 inhabitants)
73 Km SW of Messina (238439 inhabitants)
74 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
86 Km NW of Siracusa (122291 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 inhabitants)
99 Km NE of Gela (75827 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 2.1
ML-VAX 1.5
1992-05-23
01:09:31
37.778 14.917 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 165179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-23 01:09:31 ± 0.264
Latitude 37.7780 ± 0.0160
Longitude 14.9170 ± 0.0257
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 165179

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) 2871.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.00648
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 165179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:34:30

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 165179
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. 1992-05-23T01:09:56.23 10.0 undecidable manual SG 177 0.7215 -0.27 0.6
--.MO9.Z. 1992-05-23T01:09:55.80 10.0 undecidable manual SG 69 0.6438 0.83 0.2
--.ATN.Z. 1992-05-23T01:09:50.33 10.0 undecidable manual SG 48 0.5661 -1.39 0
--.MO9.Z. 1992-05-23T01:09:45.17 10.0 undecidable manual PG 69 0.6438 0.59 1
--.PZI.Z. 1992-05-23T01:09:45.76 10.0 undecidable manual PG 177 0.7215 -0.13 1.7
--.ATN.Z. 1992-05-23T01:09:42.82 10.0 undecidable manual PG 48 0.5661 -0.3 1.6
--.MNO.Z. 1992-05-23T01:09:37.00 10.0 undecidable manual PG 311 0.222 0.18 1.8
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