Earthquake with magnitude of ML 1.9 on date 08-09-2011 and time 11:38:18 (Italy) in region 12 km S Motta Sant'Anastasia (CT)

A magnitude ML 1.9 earthquake occured in region: 12 km S Motta Sant'Anastasia (CT), on

  • 08-09-2011 09:38:18 (UTC)
  • 08-09-2011 11:38:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.4110, 14.9940 at 0 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 12 12116 12116
Misterbianco CT 12 49410 61526
Catania CT 13 314555 376081
Lentini SR 14 24085 400166
Carlentini SR 15 17798 417964
Camporotondo Etneo CT 18 5023 422987
Gravina di Catania CT 18 25838 448825
Scordia CT 18 17095 465920
Sant'Agata li Battiati CT 18 9479 475399
San Pietro Clarenza CT 18 7743 483142
Mascalucia CT 19 31958 515100
Tremestieri Etneo CT 20 20589 535689
San Gregorio di Catania CT 20 11966 547655

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Catania (314555 inhabitants)
27 Km SW of Acireale (52622 inhabitants)
47 Km NW of Siracusa (122291 inhabitants)
59 Km NE of Ragusa (73313 inhabitants)
65 Km NE of Modica (54633 inhabitants)
65 Km NE of Vittoria (63339 inhabitants)
76 Km NE of Gela (75827 inhabitants)
83 Km E of Caltanissetta (63360 inhabitants)
97 Km SW of Reggio di Calabria (183035 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 1.9
2011-09-08
09:38:18
37.411 14.994 1 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1282859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-09-08 09:38:18 ± 0.4
Latitude 37.4110 ± 0.0171
Longitude 14.9940 ± 0.0079
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1282859

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2105
Semi-minor axis of confidence ellipse (meter) 737
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 2024.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 257
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) 0.36
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 7
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1282859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:22:31

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1282859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:22:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNO.SHE. 2011-09-08T09:38:41.25 10.0 undecidable manual Pg 0 0 0
IV.HVZN.HHE. 2011-09-08T09:38:31.25 0.1 undecidable manual Sg 224 35.6421 0.222 92
IV.MCIV.HHN. 2011-09-08T09:38:28.93 10.0 undecidable manual Pg 0 0 0
IV.STR3.BHE. 2011-09-08T09:38:28.79 10.0 undecidable manual Pg 0 0 0
IV.HVZN.HHE. 2011-09-08T09:38:25.94 0.1 undecidable manual Pg 224 35.6421 0.139 93
IV.HAGA.HHE. 2011-09-08T09:38:25.98 0.1 undecidable manual Sg 134 19.9689 0.399 91
IV.HCRL.HHZ. 2011-09-08T09:38:23.52 0.1 undecidable manual Sg 166 14.5743 -0.208 96
IV.HLNI.HHZ. 2011-09-08T09:38:23.10 0.1 undecidable manual Sg 237 12.7761 0 100
IV.HAGA.HHE. 2011-09-08T09:38:22.67 0.1 undecidable manual Pg 134 19.9689 0.014 98
IV.HCRL.HHZ. 2011-09-08T09:38:21.09 0.1 undecidable manual Pg 166 14.5743 -0.498 90
IV.HLNI.HHZ. 2011-09-08T09:38:21.15 0.1 undecidable manual Pg 237 12.7761 -0.078 99
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