Earthquake with magnitude of ML 2.2 on date 30-07-2011 and time 22:03:08 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude ML 2.2 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 30-07-2011 20:03:08 (UTC)
  • 30-07-2011 22:03:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.4550, 15.6290 at 29 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Acireale (52622 inhabitants)
48 Km E of Catania (314555 inhabitants)
53 Km NE of Siracusa (122291 inhabitants)
73 Km S of Reggio di Calabria (183035 inhabitants)
83 Km S of Messina (238439 inhabitants)
99 Km NE of Ragusa (73313 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 1.9
ML 2.2
2011-07-30
20:03:08
37.455 15.629 29 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1266039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-07-30 20:03:08 ± 0.19
Latitude 37.4550 ± 0.0054
Longitude 15.6290 ± 0.0079
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1266039

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 650
Semi-minor axis of confidence ellipse (meter) 324
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 922.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 319
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63852
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1266039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:58:48

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1266039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:58:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2011-07-30T20:03:35.06 10.0 undecidable manual Sg 0 0 0
IV.ATCC.EHZ. 2011-07-30T20:03:34.06 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2011-07-30T20:03:34.66 10.0 undecidable manual Pg 0 0 0
IV.HAVL.HHN. 2011-07-30T20:03:30.48 0.3 undecidable manual Sg 219 70.8735 0.084 95
IV.HLNI.HHN. 2011-07-30T20:03:29.50 0.3 undecidable manual Sg 260 67.6767 -0.084 96
IV.SSY.HHN. 2011-07-30T20:03:27.57 0.3 undecidable manual Sg 236 58.9965 0.179 95
IV.HCRL.HHN. 2011-07-30T20:03:26.63 0.3 undecidable manual Sg 250 55.8996 0.022 98
IV.AGST.EHE. 2011-07-30T20:03:22.99 0.3 undecidable manual Sg 238 41.7249 -0.179 98
IV.HAVL.HHN. 2011-07-30T20:03:20.98 0.3 undecidable manual Pg 219 70.8735 -0.091 94
IV.HLNI.HHN. 2011-07-30T20:03:20.65 0.3 undecidable manual Pg 260 67.6767 0.048 95
IV.HCRL.HHN. 2011-07-30T20:03:19.08 0.3 undecidable manual Pg 250 55.8996 0.194 95
IV.SSY.HHN. 2011-07-30T20:03:19.25 0.3 undecidable manual Pg 236 58.9965 -0.085 97
IV.CELB.HHZ. 2011-07-30T20:03:18.13 10.0 undecidable manual Pg 0 0 0
IV.AGST.EHE. 2011-07-30T20:03:16.81 0.3 undecidable manual Pg 238 41.7249 -0.086 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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