Earthquake with magnitude of Md 2.1 on date 24-11-1988 and time 12:04:39 (Italy) in region 2 km NE Ragalna (CT)

A magnitude Md 2.1 earthquake occured in region: 2 km NE Ragalna (CT), on

  • 24-11-1988 11:04:39 (UTC)
  • 24-11-1988 12:04:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6480, 14.9510 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
Ragalna CT 2 3924 3924
Santa Maria di Licodia CT 7 7641 11565
Belpasso CT 7 28108 39673
Biancavilla CT 7 24007 63680
Nicolosi CT 8 7463 71143
PaternĂ² CT 9 48228 119371
Camporotondo Etneo CT 10 5023 124394
Pedara CT 10 14102 138496
Adrano CT 11 36122 174618
San Pietro Clarenza CT 11 7743 182361
Trecastagni CT 12 10910 193271
Mascalucia CT 12 31958 225229
Tremestieri Etneo CT 13 20589 245818
Viagrande CT 14 8563 254381
Gravina di Catania CT 14 25838 280219
Zafferana Etnea CT 15 9517 289736
Misterbianco CT 15 49410 339146
San Giovanni la Punta CT 15 23060 362206
Aci Bonaccorsi CT 15 3524 365730
Sant'Agata li Battiati CT 15 9479 375209
Motta Sant'Anastasia CT 15 12116 387325
Aci Sant'Antonio CT 16 17984 405309
San Gregorio di Catania CT 17 11966 417275
Milo CT 17 1087 418362
Valverde CT 17 7840 426202
Santa Venerina CT 17 8592 434794
Aci Catena CT 18 29851 464645
Centuripe EN 19 5470 470115
Bronte CT 19 19172 489287
Acireale CT 19 52622 541909
Aci Castello CT 20 18723 560632

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Acireale (52622 inhabitants)
20 Km NW of Catania (314555 inhabitants)
72 Km NW of Siracusa (122291 inhabitants)
80 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
81 Km SW of Messina (238439 inhabitants)
83 Km N of Ragusa (73313 inhabitants)
86 Km NE of Vittoria (63339 inhabitants)
89 Km N of Modica (54633 inhabitants)
90 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 2.1 1988-11-24
11:04:39
37.648 14.951 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 81849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-24 11:04:39 ± 0.502
Latitude 37.6480 ± 0.0287
Longitude 14.9510 ± 0.0143
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 81849

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) 3434.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 261
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.00866
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 81849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:16:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SOI.Z. 1988-11-24T11:05:13.00 10.0 undecidable manual SG 63 0.9657 0.63 0.1
--.ATN.Z. 1988-11-24T11:05:01.95 10.0 undecidable manual SG 38 0.6438 -0.18 0.8
--.SOI.Z. 1988-11-24T11:04:58.00 10.0 undecidable manual PG 63 0.9657 -0.41 0.9
--.MNO.Z. 1988-11-24T11:04:52.90 10.0 undecidable manual SG 324 0.3441 -0.38 0.5
--.ATN.Z. 1988-11-24T11:04:52.59 10.0 undecidable manual PG 38 0.6438 0.09 2.2
--.MNO.Z. 1988-11-24T11:04:47.19 10.0 undecidable manual PG 324 0.3441 0.27 1.6
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