Earthquake with magnitude of ML 1.4 on date 15-11-2011 and time 19:59:04 (UTC) in region 8 km SE Randazzo (CT)

A magnitude ML 1.4 earthquake occured in region: 8 km SE Randazzo (CT), on

  • 15-11-2011 19:59:04 (UTC)
  • 15-11-2011 20:59:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8230, 15.0000 at 37 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
Randazzo CT 8 10900 10900
Moio Alcantara ME 10 717 11617
Santa Domenica Vittoria ME 11 980 12597
Maletto CT 12 3920 16517
Malvagna ME 12 733 17250
Roccella Valdemone ME 12 666 17916
Castiglione di Sicilia CT 13 3215 21131
Linguaglossa CT 13 5403 26534
Francavilla di Sicilia ME 15 3945 30479
Milo CT 15 1087 31566
Bronte CT 15 19172 50738
Sant'Alfio CT 15 1582 52320
Piedimonte Etneo CT 16 3963 56283
Zafferana Etnea CT 17 9517 65800
Motta Camastra ME 17 845 66645
Maniace CT 17 3765 70410
Fiumefreddo di Sicilia CT 19 9623 80033
Mascali CT 19 14282 94315
Giarre CT 19 27659 121974
Santa Venerina CT 19 8592 130566
Gaggi ME 20 3184 133750
Floresta ME 20 485 134235

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Acireale (52622 inhabitants)
36 Km N of Catania (314555 inhabitants)
64 Km SW of Messina (238439 inhabitants)
65 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km N of Siracusa (122291 inhabitants)
90 Km E of Caltanissetta (63360 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 1.8
ML 1.4
2011-11-15
19:59:04
37.823 15 37 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1308999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-11-15 19:59:04 ± 0.48
Latitude 37.8230 ± 0.0288
Longitude 15.0000 ± 0.0228
Depth (km) 37 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1308999

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3381
Semi-minor axis of confidence ellipse (meter) 1315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 3773.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
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) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.22933
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1308999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:59:02

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1308999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:59:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GALF.HHE. 2011-11-15T19:59:20.45 0.3 undecidable manual Sg 252 40.0266 0.173 73
IV.MCSR.HHE. 2011-11-15T19:59:18.91 0.1 undecidable manual Sg 37 33.5442 -0.091 100
IV.MMME.HHN. 2011-11-15T19:59:17.53 0.3 undecidable manual Sg 61 25.4523 -0.056 77
IV.GALF.HHE. 2011-11-15T19:59:13.30 0.3 undecidable manual Pg 252 40.0266 -0.317 71
IV.MCSR.HHE. 2011-11-15T19:59:13.08 0.3 undecidable manual Pg 37 33.5442 0.205 73
IV.MMME.HHN. 2011-11-15T19:59:12.15 0.3 undecidable manual Pg 61 25.4523 0.089 76
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