Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 4.0 on date 27-10-2002 and time 02:58:12 (Italy) in region 11 km W Zafferana Etnea (CT)

A magnitude Md 4.0 earthquake occured in region: 11 km W Zafferana Etnea (CT), on

  • 27-10-2002 01:58:12 (UTC)
  • 27-10-2002 02:58:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.73, 14.98 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Zafferana Etnea CT 11 9517 9517
Ragalna CT 12 3924 13441
Milo CT 12 1087 14528
Nicolosi CT 13 7463 21991
Biancavilla CT 14 24007 45998
Pedara CT 14 14102 60100
Sant'Alfio CT 14 1582 61682
Bronte CT 15 19172 80854
Santa Venerina CT 15 8592 89446
Maletto CT 15 3920 93366
Santa Maria di Licodia CT 15 7641 101007
Adrano CT 15 36122 137129
Trecastagni CT 15 10910 148039
Belpasso CT 15 28108 176147
Viagrande CT 17 8563 184710
Randazzo CT 17 10900 195610
Giarre CT 18 27659 223269
San Pietro Clarenza CT 18 7743 231012
Camporotondo Etneo CT 18 5023 236035
Aci Bonaccorsi CT 18 3524 239559
Paternò CT 18 48228 287787
Mascalucia CT 19 31958 319745
Aci Sant'Antonio CT 19 17984 337729
Linguaglossa CT 19 5403 343132
Tremestieri Etneo CT 19 20589 363721
Mascali CT 19 14282 378003
Piedimonte Etneo CT 19 3963 381966
Riposto CT 20 14838 396804
San Giovanni la Punta CT 20 23060 419864
Moio Alcantara ME 20 717 420581
Aci Catena CT 20 29851 450432

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
72 Km SW of Messina (238439 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
85 Km E of Caltanissetta (63360 inhabitants)
92 Km N of Ragusa (73313 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
98 Km NE of Gela (75827 inhabitants)
99 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 4.0
ML-MEDNET 4.4 		2002-10-27
01:58:12		 37.73 14.98 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 455859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-10-27 01:58:12 ± 0.12
Latitude 37.73 ± 0.01
Longitude 14.98 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 455859

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) 1440.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 52
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) 0.00453
Epicentral distance of station farthest from the epicenter (degree) 0.08758
Number of stations at which the event was observed 51
Number of stations from which data was used for origin computation 51
Magnitudes information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 455859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:11:33

ML:4.4

Field Value
Value 4.4
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 455859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 10:38:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MCGN.Z. 2002-10-27T02:00:46.22 10.0 undecidable manual PN 330 0.0876 13.2 0
--.ORO.Z. 2002-10-27T02:00:35.32 10.0 undecidable manual PN 329 0.0852 5.96 0
--.BRMO.Z. 2002-10-27T02:00:35.11 10.0 undecidable manual PN 340 0.0844 6.86 0
--.VAI.Z. 2002-10-27T02:00:33.90 10.0 undecidable manual PN 332 0.0842 5.23 0
--.FVI.Z. 2002-10-27T02:00:27.33 10.0 undecidable manual PN 350 0.081 4.27 0
--.PTCC.Z. 2002-10-27T02:00:25.30 10.0 undecidable manual PN 352 0.0788 5.72 0
--.CTI.Z. 2002-10-27T02:00:21.71 10.0 undecidable manual PN 344 0.078 3.22 0
--.ERBM.Z. 2002-10-27T02:00:10.90 10.0 undecidable manual PN 334 0.0677 7.45 0
--.GSCL.Z. 2002-10-27T02:00:07.67 10.0 undecidable manual PN 335 0.0665 6.68 0
--.ZCCA.Z. 2002-10-27T02:00:06.31 10.0 undecidable manual PN 336 0.0654 7.04 0
--.SEI.Z. 2002-10-27T01:59:59.59 10.0 undecidable manual PN 337 0.0619 5.62 0
--.VMG.Z. 2002-10-27T01:59:57.69 10.0 undecidable manual PN 338 0.0607 5.63 0
--.PGD.Z. 2002-10-27T01:59:55.98 10.0 undecidable manual PN 339 0.0595 5.71 0
--.SFI.Z. 2002-10-27T01:59:55.37 10.0 undecidable manual PN 340 0.0595 5.21 0
--.CSNT.Z. 2002-10-27T01:59:51.51 10.0 undecidable manual PN 335 0.0575 4.43 0
--.CRE.Z. 2002-10-27T01:59:51.42 10.0 undecidable manual PN 339 0.0568 5.26 0
--.FSSB.Z. 2002-10-27T01:59:50.69 10.0 undecidable manual PN 345 0.0557 6.33 0
--.GRFL.Z. 2002-10-27T01:59:49.00 10.0 undecidable manual PN 332 0.0559 4.3 0
--.SNTG.Z. 2002-10-27T01:59:43.75 10.0 undecidable manual PN 345 0.0516 5.61 0
--.ASS.Z. 2002-10-27T01:59:42.68 10.0 undecidable manual PN 342 0.0505 6.17 0
--.MNS.Z. 2002-10-27T01:59:33.49 10.0 undecidable manual PN 340 0.0448 5.8 0
--.LAV9.Z. 2002-10-27T01:59:23.72 10.0 undecidable manual PN 336 0.0389 5.03 0
--.PTQR.Z. 2002-10-27T01:59:23.83 10.0 undecidable manual PN 344 0.0401 3.23 0
--.RDP.Z. 2002-10-27T01:59:21.99 10.0 undecidable manual PN 337 0.0394 2.37 0
--.MA9.Z. 2002-10-27T01:59:21.99 10.0 undecidable manual PN 337 0.0397 1.98 0
--.RNI2.Z. 2002-10-27T01:59:18.27 10.0 undecidable manual PN 351 0.0362 3.66 0
--.RGNG.Z. 2002-10-27T01:59:15.58 10.0 undecidable manual PN 6 0.0357 1.69 0
--.RFI.Z. 2002-10-27T01:59:11.81 10.0 undecidable manual PN 348 0.0328 2.29 0
--.FG5.Z. 2002-10-27T01:59:11.53 10.0 undecidable manual PN 3 0.032 3.3 0
--.BRT.Z. 2002-10-27T01:59:09.20 10.0 undecidable manual PN 27 0.032 0.93 0
--.FG4.Z. 2002-10-27T01:59:08.41 10.0 undecidable manual PN 6 0.0308 1.99 0
--.LCI.Z. 2002-10-27T01:59:08.60 10.0 undecidable manual PN 42 0.032 -0.21 0
--.CSSN.Z. 2002-10-27T01:59:04.21 10.0 undecidable manual PN 0 0.0281 1.85 0
--.MRLC.Z. 2002-10-27T01:59:02.89 10.0 undecidable manual PN 7 0.0274 1.62 0
--.ORI.Z. 2002-10-27T01:58:56.40 10.0 undecidable manual PN 25 0.0232 1.54 0.1
--.MGR.Z. 2002-10-27T01:58:52.42 10.0 undecidable manual PN 10 0.0219 -0.57 0.3
--.TDS.Z. 2002-10-27T01:58:50.30 10.0 undecidable manual PN 28 0.0198 0.43 1
--.ERC.Z. 2002-10-27T01:58:46.81 10.0 undecidable manual PN 280 0.0172 1.11 1.4
--.USI.Z. 2002-10-27T01:58:42.22 10.0 undecidable manual PN 305 0.0155 -0.82 1.8
--.GRI.Z. 2002-10-27T01:58:41.75 10.0 undecidable manual PN 45 0.0141 0.8 2.4
--.CLTB.Z. 2002-10-27T01:58:40.54 10.0 undecidable manual PN 264 0.0126 1.79 2.6
--.MCT.Z. 2002-10-27T01:58:35.58 10.0 undecidable manual PN 264 0.0098 1.16 3.3
--.AGST.Z. 2002-10-27T01:58:32.54 10.0 undecidable manual SG 157 0.0045 0.66 3.9
--.SOI.Z. 2002-10-27T01:58:30.67 10.0 undecidable manual PG 67 0.0082 -0.46 3.9
--.SLNA.Z. 2002-10-27T01:58:29.46 10.0 undecidable manual PG 352 0.0075 -0.29 3.8
--.GIB.Z. 2002-10-27T01:58:28.23 10.0 undecidable manual PG 289 0.0071 -0.79 3.8
--.SCLL.Z. 2002-10-27T01:58:28.18 10.0 undecidable manual PG 47 0.007 -0.52 3.9
--.CSLB.Z. 2002-10-27T01:58:27.37 10.0 undecidable manual PG 286 0.0068 -0.93 3.9
--.MSI.Z. 2002-10-27T01:58:26.19 10.0 undecidable manual PG 43 0.0058 -0.15 3.9
--.PZI.Z. 2002-10-27T01:58:26.26 10.0 undecidable manual PG 182 0.0061 -0.49 3.9
--.MEU.Z. 2002-10-27T01:58:25.31 10.0 undecidable manual PG 191 0.0057 -0.62 3.9
--.AGST.Z. 2002-10-27T01:58:23.11 10.0 undecidable manual PG 157 0.0045 -0.61 3.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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