Earthquake with magnitude of ML 0.4 on date 12-02-2011 and time 23:50:37 (Italy) in region 1 km NE Scoppito (AQ)

A magnitude ML 0.4 earthquake occured in region: 1 km NE Scoppito (AQ), on

  • 12-02-2011 22:50:37 (UTC)
  • 12-02-2011 23:50:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3780, 13.2630 at 12 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
Scoppito AQ 1 3727 3727
Pizzoli AQ 7 4326 8053
Barete AQ 8 737 8790
Cagnano Amiterno AQ 10 1369 10159
Tornimparte AQ 10 3187 13346
Lucoli AQ 11 1011 14357
L'Aquila AQ 12 69753 84110
Antrodoco RI 16 2588 86698
Capitignano AQ 16 665 87363
Montereale AQ 16 2581 89944
Fiamignano RI 17 1413 91357
Borgo Velino RI 17 972 92329
Borbona RI 18 617 92946
Petrella Salto RI 18 1197 94143
Micigliano RI 19 127 94270
Castel Sant'Angelo RI 19 1308 95578

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km W of L'Aquila (69753 inhabitants)
48 Km SW of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
60 Km NE of Tivoli (56533 inhabitants)
61 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km W of Chieti (51815 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km SE of Foligno (57155 inhabitants)
84 Km NE of Roma (2864731 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
95 Km E of Viterbo (67173 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 1.4
ML 0.4
2011-02-12
22:50:37
42.378 13.263 12 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1171939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-02-12 22:50:37 ± 0.43
Latitude 42.3780 ± 0.0261
Longitude 13.2630 ± 0.0463
Depth (km) 12 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1171939

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4737
Semi-minor axis of confidence ellipse (meter) 684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 4780.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
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) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.13580
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1171939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:51:01

Md:1.4

Field Value
Value 1.4
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 1171939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:51:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0106.EHE. 2011-02-12T22:50:43.49 0.6 undecidable manual Sg 129 12.6762 0.189 50
IV.RM33.EHE. 2011-02-12T22:50:43.68 0.3 undecidable manual Sg 345 15.0738 -0.22 68
IV.T0104.HHN. 2011-02-12T22:50:41.57 0.3 undecidable manual Sg 108 6.4935 -0.454 62
IV.T0106.EHE. 2011-02-12T22:50:41.02 0.1 undecidable manual Pg 129 12.6762 0.222 100
IV.RM33.EHE. 2011-02-12T22:50:41.37 0.1 undecidable manual Pg 345 15.0738 0.222 100
IV.T0104.HHN. 2011-02-12T22:50:39.97 0.1 undecidable manual Pg 108 6.4935 -0.094 95
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