Earthquake with magnitude of ML 1.9 on date 10-03-2011 and time 09:11:47 (UTC) in region 4 km SW Castellana Sicula (PA)

A magnitude ML 1.9 earthquake occured in region: 4 km SW Castellana Sicula (PA), on

  • 10-03-2011 09:11:47 (UTC)
  • 10-03-2011 10:11:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7540, 14.0180 at 37 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
Castellana Sicula PA 4 3411 3411
Blufi PA 5 1029 4440
Polizzi Generosa PA 7 3407 7847
Bompietro PA 7 1401 9248
Resuttano CL 8 2038 11286
Petralia Sottana PA 9 2821 14107
Petralia Soprana PA 9 3360 17467
Alimena PA 11 2032 19499
Caltavuturo PA 14 4017 23516
Scillato PA 15 613 24129
Sclafani Bagni PA 16 426 24555
Valledolmo PA 17 3594 28149
Geraci Siculo PA 17 1945 30094
Gangi PA 17 6811 36905
Santa Caterina Villarmosa CL 18 5388 42293
Vallelunga Pratameno CL 18 3461 45754
Villalba CL 19 1633 47387
Marianopoli CL 19 1906 49293
Collesano PA 20 4054 53347

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Caltanissetta (63360 inhabitants)
57 Km SE of Bagheria (55387 inhabitants)
62 Km NE of Agrigento (59770 inhabitants)
70 Km SE of Palermo (674435 inhabitants)
79 Km N of Gela (75827 inhabitants)
98 Km W of Catania (314555 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
2011-03-10
09:11:47
37.754 14.018 37 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1180319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-10 09:11:47 ± 0.75
Latitude 37.7540 ± 0.0189
Longitude 14.0180 ± 0.0535
Depth (km) 37 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1180319

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4441
Semi-minor axis of confidence ellipse (meter) 1408
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
Circular confidence region, given by single value of horizontal uncertainty (meter) 5147.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.11062
Epicentral distance of station farthest from the epicenter (degree) 0.43527
Number of stations at which the event was observed 4
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 1180319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:02:04

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1180319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:02:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIB.HHN. 2011-03-10T09:12:00.53 0.3 undecidable manual Sg 2 26.2515 -0.151 74
IV.RESU.HHZ. 2011-03-10T09:11:59.15 0.6 undecidable manual Sg 164 12.2766 0.278 50
IV.GALF.HHZ. 2011-03-10T09:11:57.67 0.3 undecidable manual Pg 95 48.3183 0.034 74
IV.GIB.HHN. 2011-03-10T09:11:55.49 0.3 undecidable manual Pg 2 26.2515 0.374 71
IV.PLLN.SHZ. 2011-03-10T09:11:55.27 0.3 undecidable manual Pg 22 28.6491 -0.083 75
IV.RESU.HHZ. 2011-03-10T09:11:53.81 0.1 undecidable manual Pg 164 12.2766 -0.259 100
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