Earthquake with magnitude of ML 2.2 on date 31-03-2006 and time 09:59:22 (UTC) in region 4 km S Melilli (SR)

A magnitude ML 2.2 earthquake occured in region: 4 km S Melilli (SR), on

  • 31-03-2006 09:59:22 (UTC)
  • 31-03-2006 11:59:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1410, 15.1370 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
Melilli SR 4 13621 13621
Solarino SR 5 8091 21712
Priolo Gargallo SR 5 12091 33803
Floridia SR 7 22762 56565
Sortino SR 10 8690 65255
Augusta SR 13 36305 101560
Canicattini Bagni SR 13 7109 108669
Siracusa SR 17 122291 230960
Cassaro SR 17 821 231781
Ferla SR 17 2523 234304
Carlentini SR 19 17798 252102

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Siracusa (122291 inhabitants)
41 Km S of Catania (314555 inhabitants)
43 Km NE of Ragusa (73313 inhabitants)
46 Km NE of Modica (54633 inhabitants)
53 Km S of Acireale (52622 inhabitants)
57 Km E of Vittoria (63339 inhabitants)
79 Km E 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 2.2
ML 2.2
2006-03-31
09:59:22
37.141 15.137 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 559559
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-03-31 09:59:22 ± 0.11
Latitude 37.1410 ± 0.0081
Longitude 15.1370 ± 0.0135
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 559559

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1316
Semi-minor axis of confidence ellipse (meter) 684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18166
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 559559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:45:35

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 559559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:45:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.DOI.SHZ. 2006-03-31T09:59:30.93 10.0 undecidable manual Pg 0 0 0
IV.AGST.SHZ. 2006-03-31T09:59:28.68 0.1 undecidable manual Sg 32 15.0738 -0.29 47
IV.HAVL.BHZ. 2006-03-31T09:59:27.18 0.1 undecidable manual Pg 184 20.1687 -0.03 98
IV.AGST.SHZ. 2006-03-31T09:59:26.53 0.1 undecidable manual Pg 32 15.0738 0.213 95
IV.SSY.BHZ. 2006-03-31T09:59:26.77 0.3 undecidable manual Sg 288 5.8941 0.059 38
IV.SSY.BHZ. 2006-03-31T09:59:24.95 0.1 undecidable manual Pg 288 5.8941 -0.064 100
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