Earthquake with magnitude of ML 1.7 on date 20-04-2011 and time 09:08:52 (Italy) in region 2 km E Belcastro (CZ)

A magnitude ML 1.7 earthquake occured in region: 2 km E Belcastro (CZ), on

  • 20-04-2011 07:08:52 (UTC)
  • 20-04-2011 09:08:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.0190, 16.8100 at 8 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
Belcastro CZ 2 1399 1399
Marcedusa CZ 3 448 1847
Andali CZ 4 769 2616
PetronĂ  CZ 5 2629 5245
Cerva CZ 6 1223 6468
Cropani CZ 6 4778 11246
Sersale CZ 7 4630 15876
Mesoraca KR 7 6523 22399
Botricello CZ 10 5220 27619
Petilia Policastro KR 10 9173 36792
Zagarise CZ 13 1647 38439
San Mauro Marchesato KR 14 2157 40596
Soveria Simeri CZ 14 1564 42160
Sellia Marina CZ 14 7513 49673
Roccabernarda KR 14 3393 53066
Cutro KR 15 10541 63607
Magisano CZ 16 1258 64865
Simeri Crichi CZ 16 4698 69563
Sellia CZ 16 530 70093
Santa Severina KR 17 2131 72224
Scandale KR 17 3169 75393
Albi CZ 18 949 76342
Taverna CZ 20 2703 79045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Catanzaro (90612 inhabitants)
28 Km W of Crotone (62178 inhabitants)
43 Km E of Lamezia Terme (70714 inhabitants)
57 Km SE of Cosenza (67546 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 2.0
ML 1.7
2011-04-20
07:08:52
39.019 16.81 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1198949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-04-20 07:08:52 ± 0.46
Latitude 39.0190 ± 0.0153
Longitude 16.8100 ± 0.0289
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1198949

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2795
Semi-minor axis of confidence ellipse (meter) 1029
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 3023.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51981
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1198949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:27:12

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1198949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:27:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2011-04-20T07:09:10.19 0.3 undecidable manual Sg 1 51.7038 0.736 60
IV.CAR1.HHZ. 2011-04-20T07:09:10.58 0.6 undecidable manual Sg 297 57.6978 -0.468 43
IV.FIU.EHN. 2011-04-20T07:09:09.28 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHN. 2011-04-20T07:09:06.65 0.3 undecidable manual Sg 237 40.1265 0.289 70
IV.CAR1.HHZ. 2011-04-20T07:09:03.10 0.3 undecidable manual Pg 297 57.6978 -0.158 70
IV.PIPA.HHZ. 2011-04-20T07:09:02.44 0.3 undecidable manual Pg 1 51.7038 0.102 71
IV.SGG.HHN. 2011-04-20T07:09:01.23 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHN. 2011-04-20T07:09:00.01 0.1 undecidable manual Pg 237 40.1265 -0.542 88
MN.TIP.HHN. 2011-04-20T07:08:59.14 0.3 undecidable manual Sg 346 18.3705 -0.476 70
IV.SERS.HHZ. 2011-04-20T07:08:57.57 0.1 undecidable manual Sg 280 10.5783 0.25 99
MN.TIP.HHN. 2011-04-20T07:08:56.52 0.1 undecidable manual Pg 346 18.3705 -0.138 100
IV.SERS.HHZ. 2011-04-20T07:08:55.64 0.1 undecidable manual Pg 280 10.5783 0.309 98
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