Earthquake with magnitude of ML 2.5 on date 04-10-2012 and time 00:33:59 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 03-10-2012 22:33:59 (UTC)
  • 04-10-2012 00:33:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3200, 16.6980 at 20 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

No Italian municipalities within 100 km from the epicenter with at least 50000 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
Reviewed
Rev100
ML 2.5 2012-10-03
22:33:59
37.3648 16.7325 10 2014-10-21
12:08:56
Sala Sismica INGV-Roma 2287581
Bulletin
Rev1000
ML 2.5 2012-10-03
22:33:59
37.32 16.6978 20 2014-09-19
08:14:18
Bollettino Sismico Italiano INGV 3112611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-10-03 22:33:59 ± 0.19
Latitude 37.3200 ± 0.0297
Longitude 16.6978 ± 0.0136
Depth (km) 20 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3112611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3500
Semi-minor axis of confidence ellipse (meter) 200
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 3500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 295
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.83637
Epicentral distance of station farthest from the epicenter (degree) 1.58371
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 3112611
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:45:36

ML:2.5

Field Value
Value 2.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 2287581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-10-03 22:40:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HVZN.HHZ. 2012-10-03T22:34:27.64 0.1 undecidable manual P 265 175.7907 54 -0.01 84
IV.HMDC.HHZ. 2012-10-03T22:34:27.03 0.1 undecidable manual P 257 173.9925 54 -0.41 78
IV.MEU.SHZ. 2012-10-03T22:34:26.41 0.1 undecidable manual P 263 166.611 54 -0.11 86
IV.HLNI.HHZ. 2012-10-03T22:34:25.69 0.1 undecidable manual P 272 161.1165 54 -0.14 88
IV.HCRL.HHZ. 2012-10-03T22:34:24.13 0.1 undecidable manual P 269 147.0417 54 0.05 95
IV.SSY.HHZ. 2012-10-03T22:34:24.39 0.1 undecidable manual P 263 144.5442 94 0.68 81
IV.HAVL.HHZ. 2012-10-03T22:34:23.53 0.1 undecidable manual P 254 144.9438 94 -0.25 92
IV.HAGA.HHZ. 2012-10-03T22:34:22.72 0.1 undecidable manual P 269 136.1637 94 0.29 93
IV.MTTG.HHZ. 2012-10-03T22:34:18.47 0.3 undecidable manual P 311 115.8951 95 -0.83 60
IV.MPAZ.HHZ. 2012-10-03T22:34:16.17 0.1 undecidable manual P 319 92.8404 96 0.4 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HMDC.HHE. ML:2.4 0.000096 1.34 AML other m 2012-10-03T22:34:34.01
IV.HMDC.HHN. ML:2.5 0.000129 1.58 AML other m 2012-10-03T22:35:15.15
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
Waveforms Seismic signals in miniseed + resp format Download