Earthquake with magnitude of ML 1.8 on date 08-12-2011 and time 23:53:48 (Italy) in region Costa Ionica Catanzarese (Catanzaro)

A magnitude ML 1.8 earthquake occured in region: Costa Ionica Catanzarese (Catanzaro), on

  • 08-12-2011 22:53:48 (UTC)
  • 08-12-2011 23:53:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.8560, 16.9060 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
Botricello CZ 10 5220 5220
Sellia Marina CZ 15 7513 12733
Cropani CZ 17 4778 17511
Marcedusa CZ 20 448 17959

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Catanzaro (90612 inhabitants)
32 Km SW of Crotone (62178 inhabitants)
52 Km E of Lamezia Terme (70714 inhabitants)
74 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 1.9
ML 1.8
2011-12-08
22:53:48
38.856 16.906 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1319839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-12-08 22:53:48 ± 0.54
Latitude 38.8560 ± 0.0180
Longitude 16.9060 ± 0.0243
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1319839

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2526
Semi-minor axis of confidence ellipse (meter) 1526
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 2900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 271
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) 0.56
Epicentral distance of station closest to the epicenter (degree) 0.24641
Epicentral distance of station farthest from the epicenter (degree) 0.63312
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:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1319839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:14:01

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1319839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:14:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIPA.HHN. 2011-12-08T22:54:11.40 0.6 undecidable manual Sg 354 70.2741 0.713 40
IV.GRI.EHE. 2011-12-08T22:54:03.46 0.6 undecidable manual Sg 265 42.1245 0.543 45
IV.PIPA.HHN. 2011-12-08T22:54:01.11 0.3 undecidable manual Pg 354 70.2741 -0.068 71
IV.SERS.HHZ. 2011-12-08T22:53:57.64 0.3 undecidable manual Sg 317 27.3504 -0.227 74
IV.GRI.EHE. 2011-12-08T22:53:56.47 0.3 undecidable manual Pg 265 42.1245 -0.224 72
IV.SERS.HHZ. 2011-12-08T22:53:53.62 0.1 undecidable manual Pg 317 27.3504 -0.159 100
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