Earthquake with magnitude of Md 4.3 on date 15-12-1991 and time 21:00:52 (Italy) in region Costa Catanese (Catania)

A magnitude Md 4.3 earthquake occured in region: Costa Catanese (Catania), on

  • 15-12-1991 20:00:52 (UTC)
  • 15-12-1991 21:00:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.56, 15.26 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
Aci Castello CT 10 18723 18723
Acireale CT 11 52622 71345
Aci Catena CT 12 29851 101196
Valverde CT 13 7840 109036
Aci Sant'Antonio CT 13 17984 127020
San Gregorio di Catania CT 14 11966 138986
Aci Bonaccorsi CT 14 3524 142510
San Giovanni la Punta CT 15 23060 165570
Viagrande CT 16 8563 174133
Sant'Agata li Battiati CT 16 9479 183612
Catania CT 17 314555 498167
Tremestieri Etneo CT 17 20589 518756
Trecastagni CT 18 10910 529666
Gravina di Catania CT 18 25838 555504
Santa Venerina CT 18 8592 564096
Mascalucia CT 19 31958 596054
Pedara CT 19 14102 610156

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SE of Acireale (52622 inhabitants)
17 Km E of Catania (314555 inhabitants)
55 Km N of Siracusa (122291 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
75 Km SW of Messina (238439 inhabitants)
85 Km NE of Ragusa (73313 inhabitants)
89 Km NE of Modica (54633 inhabitants)
93 Km NE of Vittoria (63339 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
Rev 1000 Md 4.3
ML-VAX 4.2
1991-12-15
20:00:52
37.56 15.26 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 155209
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-12-15 20:00:52 ± 0.185
Latitude 37.56 ± 0.02
Longitude 15.26 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 155209

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) 2414
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 102
Number of defining phases 102
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.1245
Number of stations at which the event was observed 99
Number of stations from which data was used for origin computation 99
Magnitudes information

Md:4.3

Field Value
Value 4.3
Uncertainty
Num. used stations 9
Type of magnitude Md
Reference to an origin 155209
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:24:57

ML:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations 16
Type of magnitude ML
Reference to an origin 155209
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 Takeoff_angle Residual Weight
--.CLL.Z. 1991-12-15T20:04:08.00 10.0 undecidable manual PN 354 0.1245 -1.01 0.6
--.MOX.Z. 1991-12-15T20:04:01.10 10.0 undecidable manual PN 349 0.12 -1.05 0.6
--.KRA.Z. 1991-12-15T20:03:58.50 10.0 undecidable manual PN 13 0.1164 1.85 0.2
--.TCF.Z. 1991-12-15T20:03:57.20 10.0 undecidable manual PN 316 0.1174 -0.91 0.7
--.LOR.Z. 1991-12-15T20:03:55.90 10.0 undecidable manual PN 323 0.1155 0.6 0.9
--.LBF.Z. 1991-12-15T20:03:52.10 10.0 undecidable manual PN 322 0.1132 0.35 1.1
--.AVF.Z. 1991-12-15T20:03:52.90 10.0 undecidable manual PN 320 0.1148 -1.3 0.5
--.BGF.Z. 1991-12-15T20:03:52.60 10.0 undecidable manual PN! 318 0.1158 -3.11 0
--.PRU.Z. 1991-12-15T20:03:51.10 10.0 undecidable manual PN 357 0.1119 1.37 0.5
--.SPC.Z. 1991-12-15T20:03:49.30 10.0 undecidable manual PN! 15 0.1095 3.13 0
--.SMF.Z. 1991-12-15T20:03:49.80 10.0 undecidable manual PN 320 0.1117 0.34 1.1
--.CDF.Z. 1991-12-15T20:03:48.60 10.0 undecidable manual PN 334 0.1108 0.48 1
--.HAU.Z. 1991-12-15T20:03:47.40 10.0 undecidable manual PN 331 0.1108 -0.73 0.9
--.BSF.Z. 1991-12-15T20:03:43.10 10.0 undecidable manual PN 331 0.108 -0.72 0.9
--.KHC.Z. 1991-12-15T20:03:39.10 10.0 undecidable manual PN 354 0.1047 0.39 1.1
--.VKA.Z. 1991-12-15T20:03:26.00 10.0 undecidable manual PN 3 0.0965 -0.33 1.2
--.SRO.Z. 1991-12-15T20:03:24.00 10.0 undecidable manual PN 11 0.0944 0.93 0.8
--.PHP.Z. 1991-12-15T20:03:23.00 10.0 undecidable manual SN! 42 0.0516 3.09 0
--.BUD.Z. 1991-12-15T20:03:21.00 10.0 undecidable manual PN 14 0.0927 0.56 1.1
--.LPL.Z. 1991-12-15T20:03:21.50 10.0 undecidable manual PN! 324 0.0917 2.48 0
--.BNI.Z. 1991-12-15T20:03:16.18 10.0 undecidable manual PN 322 0.0889 1.51 0.4
--.ORO.Z. 1991-12-15T20:03:13.98 10.0 undecidable manual PN 328 0.0875 1.38 0.5
--.VAI.Z. 1991-12-15T20:03:12.69 10.0 undecidable manual PN 331 0.0865 1.68 0.3
--.KBA.Z. 1991-12-15T20:03:11.00 10.0 positive manual PN 352 0.0865 -0.1 2.7
--.ULC.Z. 1991-12-15T20:03:07.79 10.0 undecidable manual SN! 33 0.0482 -3.22 0
--.FVI.Z. 1991-12-15T20:03:06.68 10.0 undecidable manual PN 349 0.0829 1.12 0.7
--.MDI.Z. 1991-12-15T20:03:06.64 10.0 undecidable manual PN 335 0.0828 1.29 0.6
--.CDR.Z. 1991-12-15T20:03:06.30 10.0 undecidable manual PN! 313 0.085 -2.43 0
--.TIR.Z. 1991-12-15T20:03:04.50 10.0 undecidable manual SN! 41 0.0467 -2.4 0
--.CTI.Z. 1991-12-15T20:03:01.73 10.0 undecidable manual PN 343 0.0801 0.48 1.3
--.FRF.Z. 1991-12-15T20:02:57.90 10.0 undecidable manual PN! 315 0.0798 -2.98 0
--.SBF.Z. 1991-12-15T20:02:56.30 10.0 undecidable manual PN 319 0.0779 -1.52 0.5
--.BOB.Z. 1991-12-15T20:02:56.00 10.0 undecidable manual PN 330 0.0758 1.24 0.7
--.VOY.Z. 1991-12-15T20:02:56.50 10.0 undecidable manual PN 353 0.0767 0.35 1.4
--.LJU.Z. 1991-12-15T20:02:55.50 10.0 undecidable manual PN 356 0.0765 -0.21 1.4
--.TRI.Z. 1991-12-15T20:02:54.27 10.0 undecidable manual PN! 352 0.074 2.34 0
--.ZAG.Z. 1991-12-15T20:02:54.00 10.0 undecidable manual PN 3 0.0746 1.23 0.7
--.PTJ.Z. 1991-12-15T20:02:53.80 10.0 undecidable manual PN 3 0.0752 -0.05 1.5
--.CEY.Z. 1991-12-15T20:02:52.50 10.0 undecidable manual PN 355 0.0737 0.88 1
--.BEO.Z. 1991-12-15T20:02:52.00 10.0 undecidable manual PN 26 0.0741 -0.21 1.4
--.VBY.Z. 1991-12-15T20:02:48.60 10.0 undecidable manual PN 359 0.0715 0.53 1.3
--.RIY.Z. 1991-12-15T20:02:45.30 10.0 undecidable manual PN 355 0.0703 -0.93 1
--.MME.Z. 1991-12-15T20:02:43.80 10.0 undecidable manual PN 333 0.0673 1.42 0.6
--.PGD.Z. 1991-12-15T20:02:36.39 10.0 undecidable manual PN! 338 0.0617 3.17 0
--.SFI.Z. 1991-12-15T20:02:34.20 10.0 undecidable manual PN 338 0.0616 1.13 0.9
--.RSM.Z. 1991-12-15T20:02:34.30 10.0 undecidable manual PN! 342 0.0604 3.09 0
--.PGF.Z. 1991-12-15T20:02:33.00 10.0 undecidable manual PN 318 0.0622 -0.99 1
--.VAY.Z. 1991-12-15T20:02:32.70 10.0 undecidable manual PN 53 0.061 0.61 2.7
--.CRE.Z. 1991-12-15T20:02:31.11 10.0 undecidable manual PN! 338 0.059 2.02 0
--.SKO.Z. 1991-12-15T20:02:29.50 10.0 undecidable manual PN 44 0.0583 1.52 1.1
--.PLE.Z. 1991-12-15T20:02:27.82 10.0 positive manual PN 27 0.0591 -1.41 1.3
--.ARV.Z. 1991-12-15T20:02:26.50 10.0 undecidable manual PN! 344 0.0557 2.43 0
--.IVA.Z. 1991-12-15T20:02:26.44 10.0 positive manual PN 32 0.0574 -0.21 3.3
--.PVY.Z. 1991-12-15T20:02:23.92 10.0 positive manual PN 33 0.0557 -0.11 3.3
--.ASS.Z. 1991-12-15T20:02:21.60 10.0 undecidable manual PN 340 0.0526 1.7 0.4
--.NKY.Z. 1991-12-15T20:02:19.92 10.0 positive manual PN 27 0.0537 -1.17 1.7
--.BRY.Z. 1991-12-15T20:02:18.28 10.0 undecidable manual PN 23 0.053 -1.73 0.4
--.PHP.Z. 1991-12-15T20:02:18.60 10.0 undecidable manual PN 42 0.0516 0.78 1.2
--.MAO.Z. 1991-12-15T20:02:17.89 10.0 undecidable manual PN 328 0.052 -0.59 1.4
--.SDA.Z. 1991-12-15T20:02:16.80 10.0 undecidable manual PN 34 0.0496 2.02 0.2
--.OHR.Z. 1991-12-15T20:02:15.00 10.0 undecidable manual PN 48 0.05 -0.38 1.6
--.BDV.Z. 1991-12-15T20:02:13.14 10.0 positive manual PN 28 0.0491 -0.81 2.4
--.KBN.Z. 1991-12-15T20:02:12.00 10.0 undecidable manual PN 52 0.0474 0.7 1.3
--.ULC.Z. 1991-12-15T20:02:12.90 10.0 positive manual PN 33 0.0482 0.22 3.3
--.HCY.Z. 1991-12-15T20:02:12.78 10.0 positive manual PN 25 0.0493 -1.48 1.1
--.MNS.Z. 1991-12-15T20:02:11.86 10.0 undecidable manual PN 338 0.0469 1.23 0.8
--.TIR.Z. 1991-12-15T20:02:10.20 10.0 undecidable manual PN 41 0.0467 -0.1 1.7
--.VLO.Z. 1991-12-15T20:02:02.30 10.0 undecidable manual PN! 47 0.0395 3 0
--.CP9.Z. 1991-12-15T20:02:02.50 10.0 undecidable manual PN 338 0.0418 -0.89 1.1
--.MS1.Z. 1991-12-15T20:01:58.00 10.0 undecidable manual PN 6 0.0376 1.6 0.5
--.FG2.Z. 1991-12-15T20:01:57.72 10.0 undecidable manual PN 358 0.0382 0.39 1.5
--.FG3.Z. 1991-12-15T20:01:56.98 10.0 undecidable manual PN 6 0.0376 0.54 1.4
--.SDI.Z. 1991-12-15T20:01:56.79 10.0 undecidable manual PN 345 0.0386 -1.25 0.8
--.SGG.Z. 1991-12-15T20:01:51.20 10.0 undecidable manual PN 350 0.035 -1.2 0.8
--.MSC.Z. 1991-12-15T20:01:49.70 10.0 undecidable manual PN 344 0.0338 -1.05 1
--.FG4.Z. 1991-12-15T20:01:49.90 10.0 undecidable manual PN 2 0.0321 0.94 1.1
--.BAI.Z. 1991-12-15T20:01:49.00 10.0 undecidable manual PN 18 0.0338 -1.67 0.4
--.CDT.Z. 1991-12-15T20:01:48.50 10.0 undecidable manual PN 12 0.0325 -0.08 1.7
--.LCI.Z. 1991-12-15T20:01:47.40 10.0 undecidable manual PN 37 0.0319 -0.74 1.3
--.BRT.Z. 1991-12-15T20:01:47.66 10.0 undecidable manual PN 23 0.0325 -1.1 0.9
--.OVO.Z. 1991-12-15T20:01:44.60 10.0 undecidable manual PN 348 0.03 -0.23 1.6
--.SGO.Z. 1991-12-15T20:01:40.00 10.0 undecidable manual PN 0 0.027 -0.23 1.6
--.SOR.Z. 1991-12-15T20:01:39.20 10.0 undecidable manual PN! 346 0.0279 -2.5 0
--.PTS.Z. 1991-12-15T20:01:34.59 10.0 undecidable manual PN 254 0.0243 -1.6 0.5
--.MGR.Z. 1991-12-15T20:01:31.68 10.0 undecidable manual PN! 4 0.0232 -2.9 0
--.TDS.Z. 1991-12-15T20:01:30.00 10.0 undecidable manual PN 21 0.0203 -0.11 1.7
--.LVI.Z. 1991-12-15T20:01:29.19 10.0 undecidable manual PN! 281 0.0211 -2.13 0
--.ERC.Z. 1991-12-15T20:01:25.74 10.0 undecidable manual PN! 283 0.0194 -3.05 0
--.USI.Z. 1991-12-15T20:01:21.21 10.0 undecidable manual PN! 305 0.018 -5.32 0
--.FAI.Z. 1991-12-15T20:01:15.28 10.0 undecidable manual PN 257 0.0117 -1.57 0.5
--.SOI.Z. 1991-12-15T20:01:09.70 10.0 positive manual PG 50 0.0073 0.59 2.8
--.GMB.Z. 1991-12-15T20:01:09.18 10.0 undecidable manual PG 35 0.0068 1.07 1
--.GIB.Z. 1991-12-15T20:01:07.00 10.0 positive manual PN! 294 0.0096 -6.71 0
--.SC9.Z. 1991-12-15T20:01:06.88 10.0 positive manual PG 26 0.007 -1.76 0.7
--.MSI.Z. 1991-12-15T20:01:06.70 10.0 undecidable manual PG 19 0.0062 -0.73 1.3
--.PZI.Z. 1991-12-15T20:01:04.61 10.0 positive manual PG 206 0.005 0.11 3.3
--.MO9.Z. 1991-12-15T20:01:04.32 10.0 negative manual PG 37 0.005 -0.14 3.3
--.ATN.Z. 1991-12-15T20:01:03.50 10.0 negative manual PG! 14 0.0056 -2.1 0
--.MEU.Z. 1991-12-15T20:01:03.74 10.0 positive manual PG 217 0.005 -0.8 2.4
--.AU9.Z. 1991-12-15T20:01:01.48 10.0 undecidable manual PG 186 0.0027 1.72 0.4
--.MNO.Z. 1991-12-15T20:00:58.45 10.0 negative manual PG! 309 0.0053 -6.5 0
--.GIO.Z. 1991-12-15T20:00:56.86 10.0 negative manual PG 274 0.0011 0.47 3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download