Earthquake with magnitude of Md 2.4 on date 22-02-1998 and time 02:05:45 (Italy) in region 3 km NE Aci Castello (CT)

A magnitude Md 2.4 earthquake occured in region: 3 km NE Aci Castello (CT), on

  • 22-02-1998 01:05:45 (UTC)
  • 22-02-1998 02:05:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5800, 15.1710 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
Aci Castello CT 3 18723 18723
Aci Catena CT 4 29851 48574
Acireale CT 4 52622 101196
Valverde CT 4 7840 109036
Aci Sant'Antonio CT 5 17984 127020
San Gregorio di Catania CT 6 11966 138986
Aci Bonaccorsi CT 6 3524 142510
San Giovanni la Punta CT 7 23060 165570
Viagrande CT 7 8563 174133
Sant'Agata li Battiati CT 8 9479 183612
Tremestieri Etneo CT 9 20589 204201
Trecastagni CT 9 10910 215111
Gravina di Catania CT 10 25838 240949
Mascalucia CT 10 31958 272907
Pedara CT 11 14102 287009
Catania CT 11 314555 601564
Santa Venerina CT 12 8592 610156
San Pietro Clarenza CT 13 7743 617899
Nicolosi CT 13 7463 625362
Zafferana Etnea CT 14 9517 634879
Camporotondo Etneo CT 15 5023 639902
Misterbianco CT 16 49410 689312
Milo CT 17 1087 690399
Giarre CT 17 27659 718058
Belpasso CT 17 28108 746166
Riposto CT 17 14838 761004
Sant'Alfio CT 19 1582 762586
Motta Sant'Anastasia CT 19 12116 774702
Mascali CT 20 14282 788984

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km S of Acireale (52622 inhabitants)
11 Km NE of Catania (314555 inhabitants)
59 Km N of Siracusa (122291 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
76 Km SW of Messina (238439 inhabitants)
83 Km NE of Ragusa (73313 inhabitants)
88 Km NE of Modica (54633 inhabitants)
90 Km NE of Vittoria (63339 inhabitants)
98 Km E of Caltanissetta (63360 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
Bulletin
Rev1000
Md 2.4
ML-VAX 1.7
1998-02-22
01:05:45
37.58 15.171 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 323679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-02-22 01:05:45 ± 0.408
Latitude 37.5800 ± 0.0237
Longitude 15.1710 ± 0.0416
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 323679

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) 4515.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
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) 1
Epicentral distance of station closest to the epicenter (degree) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.02040
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 323679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:03:27

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 323679
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
--.TDS.Z. 1998-02-22T01:06:24.57 10.0 undecidable manual PN 23 2.2644 0.88 0.9
--.CS9.Z. 1998-02-22T01:06:06.16 10.0 undecidable manual PG 292 0.9324 1.39 1
--.GIB.Z. 1998-02-22T01:06:05.14 10.0 undecidable manual PG 294 0.9879 -0.61 1.5
--.PZI.Z. 1998-02-22T01:06:05.90 10.0 undecidable manual SG 198 0.5439 -1.26 0.5
--.SOI.Z. 1998-02-22T01:06:02.47 10.0 undecidable manual PG 54 0.8436 -0.71 1.5
--.AU9.Z. 1998-02-22T01:05:59.87 10.0 undecidable manual SG 173 0.3219 1.39 0.3
--.PZI.Z. 1998-02-22T01:05:56.18 10.0 undecidable manual PG 198 0.5439 -1.44 0.9
--.AU9.Z. 1998-02-22T01:05:53.88 10.0 undecidable manual PG 173 0.3219 0.8 1.5
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