Earthquake with magnitude of ML 2.1 on date 28-07-2009 and time 09:52:36 (Italy) in region 10 km S Motta Sant'Anastasia (CT)

A magnitude ML 2.1 earthquake occured in region: 10 km S Motta Sant'Anastasia (CT), on

  • 28-07-2009 07:52:36 (UTC)
  • 28-07-2009 09:52:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.4210, 14.9790 at 5 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
Motta Sant'Anastasia CT 10 12116 12116
Misterbianco CT 12 49410 61526
Catania CT 13 314555 376081
Lentini SR 15 24085 400166
Carlentini SR 16 17798 417964
Camporotondo Etneo CT 17 5023 422987
Gravina di Catania CT 17 25838 448825
San Pietro Clarenza CT 17 7743 456568
Sant'Agata li Battiati CT 18 9479 466047
Scordia CT 18 17095 483142
Mascalucia CT 18 31958 515100
PaternĂ² CT 19 48228 563328
Belpasso CT 19 28108 591436
Tremestieri Etneo CT 19 20589 612025
San Gregorio di Catania CT 20 11966 623991

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Catania (314555 inhabitants)
27 Km SW of Acireale (52622 inhabitants)
49 Km NW of Siracusa (122291 inhabitants)
59 Km NE of Ragusa (73313 inhabitants)
65 Km N of Modica (54633 inhabitants)
65 Km NE of Vittoria (63339 inhabitants)
76 Km NE of Gela (75827 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
96 Km SW of Reggio di Calabria (183035 inhabitants)
100 Km SW of Messina (238439 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
ML 2.1
2009-07-28
07:52:36
37.421 14.979 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 937079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-07-28 07:52:36 ± 0.29
Latitude 37.4210 ± 0.0117
Longitude 14.9790 ± 0.0068
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 937079

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1263
Semi-minor axis of confidence ellipse (meter) 632
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 0
Circular confidence region, given by single value of horizontal uncertainty (meter) 1431.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 269
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32106
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 937079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:51:48

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 937079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:51:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2009-07-28T07:53:42.70 10.0 undecidable manual Sg 0 0 0
IV.HVZN.HHN. 2009-07-28T07:52:48.85 0.6 undecidable manual Sg 221 35.6421 0.009 65
IV.SSY.HHZ. 2009-07-28T07:52:47.38 0.6 undecidable manual Sg 164 30.4473 0.32 62
IV.AGST.EHN. 2009-07-28T07:52:46.21 0.6 undecidable manual Sg 130 28.5492 -0.2 64
IV.HVZN.HHN. 2009-07-28T07:52:43.49 0.6 undecidable manual Pg 221 35.6421 -0.078 64
IV.SSY.HHZ. 2009-07-28T07:52:42.31 0.6 undecidable manual Pg 164 30.4473 -0.23 63
IV.HCRL.HHN. 2009-07-28T07:52:42.01 0.6 undecidable manual Sg 163 16.0728 -0.186 65
IV.AGST.EHN. 2009-07-28T07:52:42.43 0.6 undecidable manual Pg 130 28.5492 0.264 63
IV.NRCA.HHZ. 2009-07-28T07:52:41.77 10.0 undecidable manual Pg 0 0 0
IV.HCRL.HHN. 2009-07-28T07:52:39.80 0.3 undecidable manual Pg 163 16.0728 0.069 100
IV.MSCL.HHZ. 2009-07-28T07:52:22.38 10.0 undecidable manual Pg 0 0 0
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