Earthquake with magnitude of ML 1.9 on date 20-07-2007 and time 14:58:12 (UTC) in region 2 km SW Melilli (SR)

A magnitude ML 1.9 earthquake occured in region: 2 km SW Melilli (SR), on

  • 20-07-2007 14:58:12 (UTC)
  • 20-07-2007 16:58:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1600, 15.1160 at 12 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 2 13621 13621
Solarino SR 6 8091 21712
Priolo Gargallo SR 7 12091 33803
Sortino SR 7 8690 42493
Floridia SR 9 22762 65255
Augusta SR 12 36305 101560
Canicattini Bagni SR 15 7109 108669
Carlentini SR 16 17798 126467
Ferla SR 16 2523 128990
Cassaro SR 16 821 129811
Lentini SR 17 24085 153896
Siracusa SR 19 122291 276187

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Siracusa (122291 inhabitants)
38 Km S of Catania (314555 inhabitants)
43 Km NE of Ragusa (73313 inhabitants)
46 Km NE of Modica (54633 inhabitants)
51 Km S of Acireale (52622 inhabitants)
56 Km E of Vittoria (63339 inhabitants)
77 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 2.3
ML 1.9
2007-07-20
14:58:12
37.16 15.116 12 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 642309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-07-20 14:58:12 ± 0.26
Latitude 37.1600 ± 0.0063
Longitude 15.1160 ± 0.0226
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 642309

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1781
Semi-minor axis of confidence ellipse (meter) 863
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 2119.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20055
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 642309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:12:51

Md:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 642309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:12:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.AQU.HHE. 2007-07-20T14:58:46.25 10.0 undecidable manual Pg 0 0 0
IV.MMME.BHE. 2007-07-20T14:58:42.79 10.0 undecidable manual Pg 0 0 0
IV.USI.HHZ. 2007-07-20T14:58:41.06 10.0 undecidable manual Pg 0 0 0
IV.ORI.EHZ. 2007-07-20T14:58:33.18 10.0 undecidable manual Pg 0 0 0
IV.HMDC.BHE. 2007-07-20T14:58:32.52 10.0 undecidable manual Pg 0 0 0
IV.HAVL.BHN. 2007-07-20T14:58:21.15 0.3 undecidable manual Sg 179 22.2555 0.478 67
I1.HAGA.BHZ. 2007-07-20T14:58:18.86 0.3 undecidable manual Sg 14 14.2746 0.305 69
IV.AGST.EHE. 2007-07-20T14:58:18.66 0.3 undecidable manual Sg 43 14.5743 0.041 74
IV.MIDA.HHN. 2007-07-20T14:58:16.86 10.0 undecidable manual Pg 0 0 0
IV.SSY.BHZ. 2007-07-20T14:58:16.38 0.3 undecidable manual Sg 266 3.6963 -0.042 75
IV.HAVL.BHN. 2007-07-20T14:58:16.86 0.1 undecidable manual Pg 179 22.2555 -0.262 91
IV.AGST.EHE. 2007-07-20T14:58:15.67 0.1 undecidable manual Pg 43 14.5743 -0.265 93
I1.HAGA.BHZ. 2007-07-20T14:58:15.93 0.1 undecidable manual Pg 14 14.2746 0.03 98
IV.SSY.BHZ. 2007-07-20T14:58:14.61 0.1 undecidable manual Pg 266 3.6963 -0.059 100
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