Earthquake with magnitude of ML 2.1 on date 16-03-2012 and time 16:38:00 (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

  • 16-03-2012 15:38:00 (UTC)
  • 16-03-2012 16:38:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4310, 15.0030 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 10 49410 61526
Catania CT 11 314555 376081
Camporotondo Etneo CT 15 5023 381104
Gravina di Catania CT 16 25838 406942
Sant'Agata li Battiati CT 16 9479 416421
San Pietro Clarenza CT 16 7743 424164
Lentini SR 16 24085 448249
Mascalucia CT 17 31958 480207
Carlentini SR 17 17798 498005
Tremestieri Etneo CT 17 20589 518594
San Gregorio di Catania CT 18 11966 530560
Belpasso CT 18 28108 558668
San Giovanni la Punta CT 18 23060 581728
PaternĂ² CT 19 48228 629956
Aci Castello CT 19 18723 648679
Valverde CT 20 7840 656519

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SW of Catania (314555 inhabitants)
25 Km SW of Acireale (52622 inhabitants)
49 Km NW of Siracusa (122291 inhabitants)
61 Km NE of Ragusa (73313 inhabitants)
67 Km NE of Modica (54633 inhabitants)
68 Km NE of Vittoria (63339 inhabitants)
78 Km NE of Gela (75827 inhabitants)
83 Km E of Caltanissetta (63360 inhabitants)
94 Km SW of Reggio di Calabria (183035 inhabitants)
98 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 2.2
ML 2.1
2012-03-16
15:38:00
37.431 15.003 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1349499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-03-16 15:38:00 ± 0.7
Latitude 37.4310 ± 0.0306
Longitude 15.0030 ± 0.0306
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1349499

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3876
Semi-minor axis of confidence ellipse (meter) 1867
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 4341.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 306
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.14929
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1349499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:55:48

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1349499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:55:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHE. 2012-03-16T15:38:19.00 0.6 undecidable manual Sg 169 53.3022 0.155 46
IV.HAVL.HHE. 2012-03-16T15:38:10.99 0.6 undecidable manual Pg 169 53.3022 -0.216 46
IV.HVZN.HHE. 2012-03-16T15:38:08.74 0.3 undecidable manual Pg 222 37.7289 0.349 68
IV.MEU.SHE. 2012-03-16T15:38:08.04 0.3 undecidable manual Pg 203 38.5281 -0.514 66
IV.SSY.HHZ. 2012-03-16T15:38:07.11 0.3 undecidable manual Pg 168 30.9468 0.077 73
IV.HCRL.HHZ. 2012-03-16T15:38:06.73 0.6 undecidable manual Sg 171 16.5723 -0.02 51
IV.HCRL.HHZ. 2012-03-16T15:38:04.31 0.1 undecidable manual Pg 171 16.5723 0.088 100
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
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