Earthquake with magnitude of Md 2.1 on date 03-09-1990 and time 11:50:40 (Italy) in region 9 km N Ragalna (CT)

A magnitude Md 2.1 earthquake occured in region: 9 km N Ragalna (CT), on

  • 03-09-1990 09:50:40 (UTC)
  • 03-09-1990 11:50:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7080, 14.9630 at 5 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
Ragalna CT 9 3924 3924
Biancavilla CT 11 24007 27931
Nicolosi CT 12 7463 35394
Santa Maria di Licodia CT 12 7641 43035
Zafferana Etnea CT 13 9517 52552
Adrano CT 13 36122 88674
Belpasso CT 13 28108 116782
Pedara CT 13 14102 130884
Milo CT 14 1087 131971
Trecastagni CT 14 10910 142881
Bronte CT 15 19172 162053
PaternĂ² CT 15 48228 210281
Santa Venerina CT 16 8592 218873
Viagrande CT 16 8563 227436
San Pietro Clarenza CT 16 7743 235179
Camporotondo Etneo CT 16 5023 240202
Maletto CT 16 3920 244122
Sant'Alfio CT 17 1582 245704
Mascalucia CT 17 31958 277662
Tremestieri Etneo CT 18 20589 298251
Aci Bonaccorsi CT 18 3524 301775
Aci Sant'Antonio CT 18 17984 319759
San Giovanni la Punta CT 19 23060 342819
Gravina di Catania CT 19 25838 368657
Randazzo CT 19 10900 379557
Sant'Agata li Battiati CT 20 9479 389036
Aci Catena CT 20 29851 418887
Giarre CT 20 27659 446546

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
25 Km NW of Catania (314555 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
75 Km SW of Messina (238439 inhabitants)
78 Km NW of Siracusa (122291 inhabitants)
83 Km E of Caltanissetta (63360 inhabitants)
89 Km N of Ragusa (73313 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
95 Km NE of Gela (75827 inhabitants)
96 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 2.1
ML-VAX 2.0
1990-09-03
09:50:40
37.708 14.963 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 126239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-09-03 09:50:40 ± 0.134
Latitude 37.7080 ± 0.0062
Longitude 14.9630 ± 0.0134
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 126239

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) 1370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00583
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 3
Type of magnitude Md
Reference to an origin 126239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:57:26

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 126239
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. 1990-09-03T09:51:04.38 10.0 undecidable manual SG 180 0.6438 0.26 0.7
--.MEU.Z. 1990-09-03T09:51:02.73 10.0 undecidable manual SG 189 0.5994 0.1 0.8
--.ATN.Z. 1990-09-03T09:51:02.00 10.0 undecidable manual SG 40 0.5883 -0.36 0.6
--.PZI.Z. 1990-09-03T09:50:54.48 10.0 undecidable manual PG 180 0.6438 0.42 1.2
--.ATN.Z. 1990-09-03T09:50:53.28 10.0 undecidable manual PG 40 0.5883 0.24 1.8
--.MNO.Z. 1990-09-03T09:50:52.83 10.0 undecidable manual SG 316 0.3108 0.5 0.4
--.MEU.Z. 1990-09-03T09:50:52.59 10.0 undecidable manual PG 189 0.5994 -0.61 0.6
--.MNO.Z. 1990-09-03T09:50:47.00 10.0 undecidable manual PG 316 0.3108 -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