Earthquake with magnitude of Md 2.3 on date 28-03-1990 and time 09:49:00 (Italy) in region 10 km NE Regalbuto (EN)

A magnitude Md 2.3 earthquake occured in region: 10 km NE Regalbuto (EN), on

  • 28-03-1990 07:49:00 (UTC)
  • 28-03-1990 09:49:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7270, 14.7100 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
Regalbuto EN 10 7277 7277
Troina EN 12 9373 16650
Centuripe EN 12 5470 22120
Bronte CT 13 19172 41292
Adrano CT 13 36122 77414
CesarĂ² ME 13 2439 79853
San Teodoro ME 14 1403 81256
Gagliano Castelferrato EN 15 3593 84849
Biancavilla CT 17 24007 108856
Maniace CT 17 3765 112621
Catenanuova EN 18 4866 117487
Agira EN 18 8345 125832
Maletto CT 18 3920 129752
Santa Maria di Licodia CT 20 7641 137393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Catania (314555 inhabitants)
42 Km W of Acireale (52622 inhabitants)
63 Km E of Caltanissetta (63360 inhabitants)
84 Km NE of Gela (75827 inhabitants)
88 Km N of Vittoria (63339 inhabitants)
89 Km N of Ragusa (73313 inhabitants)
90 Km NW of Siracusa (122291 inhabitants)
91 Km SW of Messina (238439 inhabitants)
92 Km W of Reggio di Calabria (183035 inhabitants)
97 Km N of Modica (54633 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 2.3
ML-VAX 1.8
1990-03-28
07:49:00
37.727 14.71 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 112969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-03-28 07:49:00 ± 0.291
Latitude 37.7270 ± 0.0172
Longitude 14.7100 ± 0.0377
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 112969

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) 3829.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00656
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 112969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:44:59

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 112969
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. 1990-03-28T07:49:27.41 10.0 undecidable manual SG 53 0.7326 1.17 0.2
--.PZI.Z. 1990-03-28T07:49:26.26 10.0 undecidable manual SG 164 0.6882 1.21 0.2
--.MEU.Z. 1990-03-28T07:49:23.42 10.0 undecidable manual SG 171 0.6216 0.75 0.5
--.PZI.Z. 1990-03-28T07:49:14.49 10.0 undecidable manual PG 164 0.6882 -0.3 1.7
--.ATN.Z. 1990-03-28T07:49:14.51 10.0 undecidable manual PG 53 0.7326 -0.97 0.7
--.GIB.Z. 1990-03-28T07:49:13.00 10.0 undecidable manual PG 296 0.5883 0.01 2
--.MEU.Z. 1990-03-28T07:49:13.60 10.0 undecidable manual PG 171 0.6216 -0.36 1.7
--.MNO.Z. 1990-03-28T07:49:10.80 10.0 undecidable manual SG 356 0.1998 1.47 0.1
--.MNO.Z. 1990-03-28T07:49:05.45 10.0 undecidable manual PG 356 0.1998 -0.26 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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