Earthquake with magnitude of Md 4.1 on date 24-12-1997 and time 10:40:07 (Italy) in region 4 km SW Zafferana Etnea (CT)

A magnitude Md 4.1 earthquake occured in region: 4 km SW Zafferana Etnea (CT), on

  • 24-12-1997 09:40:07 (UTC)
  • 24-12-1997 10:40:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.68, 15.07 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
Zafferana Etnea CT 4 9517 9517
Santa Venerina CT 6 8592 18109
Pedara CT 7 14102 32211
Trecastagni CT 7 10910 43121
Milo CT 7 1087 44208
Viagrande CT 8 8563 52771
Nicolosi CT 8 7463 60234
Aci Sant'Antonio CT 9 17984 78218
Aci Bonaccorsi CT 9 3524 81742
Sant'Alfio CT 10 1582 83324
Aci Catena CT 10 29851 113175
Acireale CT 11 52622 165797
Tremestieri Etneo CT 11 20589 186386
San Giovanni la Punta CT 11 23060 209446
Mascalucia CT 12 31958 241404
Valverde CT 12 7840 249244
Giarre CT 12 27659 276903
San Pietro Clarenza CT 12 7743 284646
Belpasso CT 12 28108 312754
Ragalna CT 13 3924 316678
Gravina di Catania CT 13 25838 342516
San Gregorio di Catania CT 13 11966 354482
Sant'Agata li Battiati CT 13 9479 363961
Camporotondo Etneo CT 13 5023 368984
Riposto CT 13 14838 383822
Mascali CT 14 14282 398104
Aci Castello CT 15 18723 416827
Santa Maria di Licodia CT 17 7641 424468
Piedimonte Etneo CT 18 3963 428431
Fiumefreddo di Sicilia CT 18 9623 438054
Biancavilla CT 18 24007 462061
Misterbianco CT 18 49410 511471
PaternĂ² CT 18 48228 559699
Catania CT 19 314555 874254
Linguaglossa CT 20 5403 879657

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of Acireale (52622 inhabitants)
19 Km N of Catania (314555 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
71 Km N of Siracusa (122291 inhabitants)
72 Km SW of Messina (238439 inhabitants)
89 Km NE of Ragusa (73313 inhabitants)
91 Km E of Caltanissetta (63360 inhabitants)
94 Km NE of Vittoria (63339 inhabitants)
95 Km N of Modica (54633 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
Rev 1000 Md 4.1
ML-VAX 3.6
1997-12-24
09:40:07
37.68 15.07 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 317769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-12-24 09:40:07 ± 0.168
Latitude 37.68 ± 0.01
Longitude 15.07 ± 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 317769

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) 1890.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00348
Epicentral distance of station farthest from the epicenter (degree) 0.04331
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 36
Magnitudes information

Md:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 317769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:57:56

ML:3.6

Field Value
Value 3.6
Uncertainty
Num. used stations 16
Type of magnitude ML
Reference to an origin 317769
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
--.CGL.Z. 1997-12-24T09:42:13.33 10.0 undecidable manual SN 292 0.0433 -0.8 0.3
--.BRT.Z. 1997-12-24T09:41:44.80 10.0 undecidable manual SN 25 0.0321 0.17 0.5
--.LT9.Z. 1997-12-24T09:41:37.14 10.0 undecidable manual SN 24 0.029 0.92 0.3
--.CGL.Z. 1997-12-24T09:41:19.97 10.0 undecidable manual PN 292 0.0433 -0.74 0.7
--.FG2.Z. 1997-12-24T09:41:12.26 10.0 undecidable manual PN 0 0.0371 1.04 0.5
--.SDI.Z. 1997-12-24T09:41:11.31 10.0 undecidable manual PN 346 0.0372 -0.17 1.2
--.FG3.Z. 1997-12-24T09:41:11.55 10.0 undecidable manual PN 8 0.0367 0.9 0.6
--.RFI.Z. 1997-12-24T09:41:06.70 10.0 undecidable manual PN 347 0.0334 1.09 0.5
--.MAB1.Z. 1997-12-24T09:41:03.53 10.0 undecidable manual PN 352 0.0325 -0.57 1
--.MRB1.Z. 1997-12-24T09:41:03.25 10.0 undecidable manual PN 358 0.031 1.38 0.3
--.VTB1.Z. 1997-12-24T09:41:03.53 10.0 undecidable manual PN 354 0.0317 0.62 1
--.FG4.Z. 1997-12-24T09:41:03.48 10.0 undecidable manual PN 5 0.0312 1.26 0.4
--.BRT.Z. 1997-12-24T09:41:03.27 10.0 undecidable manual PN 25 0.0321 -0.41 1.1
--.PSB1.Z. 1997-12-24T09:41:02.92 10.0 undecidable manual PN 356 0.0319 -0.39 1.2
--.LCI.Z. 1997-12-24T09:41:02.38 10.0 undecidable manual PN 40 0.032 -0.99 0.6
--.CA9.Z. 1997-12-24T09:41:00.77 10.0 undecidable manual PN 4 0.0291 1.79 0.1
--.LT9.Z. 1997-12-24T09:40:58.66 10.0 undecidable manual PN 24 0.029 -0.16 1.4
--.CI9.Z. 1997-12-24T09:40:58.79 10.0 undecidable manual PN 359 0.0286 0.52 1.1
--.MU9.Z. 1997-12-24T09:40:57.18 10.0 undecidable manual PN 5 0.0278 0.04 1.4
--.SGO.Z. 1997-12-24T09:40:53.19 10.0 undecidable manual PN 3 0.026 -1.02 0.6
--.SL9.Z. 1997-12-24T09:40:52.30 10.0 undecidable manual PN 8 0.0247 -0.25 1.5
--.ORI.Z. 1997-12-24T09:40:51.51 10.0 undecidable manual PN 23 0.0234 1.21 0.5
--.FAI.Z. 1997-12-24T09:40:46.36 10.0 undecidable manual SN 250 0.0106 -1.34 0.2
--.LVI.Z. 1997-12-24T09:40:44.52 10.0 undecidable manual PN 278 0.0196 0.02 1.7
--.TDS.Z. 1997-12-24T09:40:44.23 10.0 undecidable manual PN 25 0.0199 -0.76 1.1
--.ERC.Z. 1997-12-24T09:40:43.12 10.0 undecidable manual PN 280 0.0179 1.2 0.5
--.CS9.Z. 1997-12-24T09:40:37.77 10.0 undecidable manual SG 288 0.0074 0.5 0.6
--.GRI.Z. 1997-12-24T09:40:35.63 10.0 undecidable manual PN 42 0.014 -0.36 1.5
--.FAI.Z. 1997-12-24T09:40:31.50 10.0 undecidable manual PN 250 0.0106 0.24 1.6
--.ATN.Z. 1997-12-24T09:40:28.67 10.0 undecidable manual SG 32 0.0051 -0.3 0.6
--.AU9.Z. 1997-12-24T09:40:26.50 10.0 undecidable manual SG 163 0.0039 1.34 0.2
--.SA1.Z. 1997-12-24T09:40:25.77 10.0 undecidable manual PG 347 0.0081 -0.4 1.5
--.GIB.Z. 1997-12-24T09:40:25.49 10.0 undecidable manual PG 290 0.0079 -0.24 1.6
--.CS9.Z. 1997-12-24T09:40:24.75 10.0 undecidable manual PG 288 0.0074 -0.04 1.7
--.SOI.Z. 1997-12-24T09:40:24.63 10.0 undecidable manual PG 62 0.0078 -0.93 0.8
--.SC9.Z. 1997-12-24T09:40:22.93 10.0 undecidable manual PG 40 0.0069 -0.76 1.1
--.MNO.Z. 1997-12-24T09:40:21.00 10.0 undecidable manual SG 310 0.0035 -1.94 0
--.MO9.Z. 1997-12-24T09:40:20.35 10.0 negative manual PG 56 0.0053 0.02 3.4
--.MSI.Z. 1997-12-24T09:40:20.71 10.0 undecidable manual PG 35 0.0058 -0.74 1.1
--.PZI.Z. 1997-12-24T09:40:20.58 10.0 undecidable manual PG 188 0.0056 -0.46 1.4
--.ATN.Z. 1997-12-24T09:40:19.18 10.0 undecidable manual PG 32 0.0051 -0.82 1
--.MEU.Z. 1997-12-24T09:40:19.69 10.0 undecidable manual PG 198 0.0053 -0.76 1.1
--.AU9.Z. 1997-12-24T09:40:17.99 10.0 undecidable manual PG 163 0.0039 0.45 1.4
--.MNO.Z. 1997-12-24T09:40:16.35 10.0 positive manual PG 310 0.0035 -0.16 3.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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