Earthquake with magnitude of ML 1.5 on date 26-06-2009 and time 06:16:50 (Italy) in region 11 km S Palazzolo Acreide (SR)

A magnitude ML 1.5 earthquake occured in region: 11 km S Palazzolo Acreide (SR), on

  • 26-06-2009 04:16:50 (UTC)
  • 26-06-2009 06:16:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.9670, 14.9140 at 11 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
Palazzolo Acreide SR 11 8808 8808
Buscemi SR 14 1051 9859
Giarratana RG 14 3048 12907
Canicattini Bagni SR 15 7109 20016
Cassaro SR 16 821 20837
Noto SR 16 23913 44750
Rosolini SR 17 21427 66177
Ragusa RG 17 73313 139490
Ferla SR 17 2523 142013
Modica RG 18 54633 196646
Buccheri SR 19 1999 198645
Monterosso Almo RG 19 3032 201677
Ispica RG 20 16061 217738

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Ragusa (73313 inhabitants)
18 Km NE of Modica (54633 inhabitants)
33 Km E of Vittoria (63339 inhabitants)
35 Km W of Siracusa (122291 inhabitants)
60 Km E of Gela (75827 inhabitants)
62 Km S of Catania (314555 inhabitants)
75 Km S of Acireale (52622 inhabitants)
95 Km SE 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
ML 1.5 2009-06-26
04:16:50
36.967 14.914 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 904819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-06-26 04:16:50 ± 0.37
Latitude 36.9670 ± 0.0207
Longitude 14.9140 ± 0.0169
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 904819

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2474
Semi-minor axis of confidence ellipse (meter) 1053
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 2745.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
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) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.16637
Epicentral distance of station farthest from the epicenter (degree) 0.26350
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 904819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:12:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HVZN.HHZ. 2009-06-26T04:17:01.54 0.1 undecidable manual Sg 323 29.2485 0.387 92
IV.SSY.HHZ. 2009-06-26T04:17:00.16 0.1 undecidable manual Sg 34 25.4523 0.023 100
IV.HAVL.HHZ. 2009-06-26T04:16:58.62 0.1 undecidable manual Sg 92 18.4704 0.347 95
IV.HVZN.HHZ. 2009-06-26T04:16:56.61 0.1 undecidable manual Pg 323 29.2485 -0.192 96
IV.SSY.HHZ. 2009-06-26T04:16:55.74 0.1 undecidable manual Pg 34 25.4523 -0.475 91
IV.HAVL.HHZ. 2009-06-26T04:16:55.05 0.1 undecidable manual Pg 92 18.4704 -0.09 100
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