Earthquake with magnitude of ML 1.5 on date 23-01-2012 and time 21:49:34 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 23-01-2012 20:49:34 (UTC)
  • 23-01-2012 21:49:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.2950, 15.6000 at 11 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km W of Cosenza (67546 inhabitants)
72 Km NW of Lamezia Terme (70714 inhabitants)
96 Km W of Catanzaro (90612 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 1.5
2012-01-23
20:49:34
39.295 15.6 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1335389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-01-23 20:49:34 ± 0.62
Latitude 39.2950 ± 0.0225
Longitude 15.6000 ± 0.0383
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1335389

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3684
Semi-minor axis of confidence ellipse (meter) 2053
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 4140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 278
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.35973
Epicentral distance of station farthest from the epicenter (degree) 0.71766
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:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1335389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:35:39

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1335389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:35:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CUC.HHN. 2012-01-23T20:49:59.00 0.6 undecidable manual Sg 13 79.6647 0.478 43
IV.MMN.HHE. 2012-01-23T20:49:57.15 0.3 undecidable manual Sg 27 73.9704 0.126 71
IV.CAR1.HHZ. 2012-01-23T20:49:52.10 0.6 undecidable manual Sg 95 52.7028 0.769 41
IV.MMN.HHE. 2012-01-23T20:49:48.35 0.1 undecidable manual Pg 27 73.9704 0.752 79
MN.CUC.HHN. 2012-01-23T20:49:48.59 0.1 undecidable manual Pg 13 79.6647 0.128 94
IV.CET2.HHZ. 2012-01-23T20:49:47.52 0.3 undecidable manual Sg 49 39.9267 -0.396 71
IV.T0712.EHZ. 2012-01-23T20:49:45.25 0.1 undecidable manual Pg 20 62.0934 -0.515 89
IV.CAR1.HHZ. 2012-01-23T20:49:44.26 0.1 undecidable manual Pg 95 52.7028 -0.057 100
IV.CET2.HHZ. 2012-01-23T20:49:41.77 0.1 undecidable manual Pg 49 39.9267 -0.57 91
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