Earthquake with magnitude of ML 2.5 on date 21-11-2011 and time 19:13:37 (Italy) in region Tirreno Meridionale (MARE)

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

  • 21-11-2011 18:13:37 (UTC)
  • 21-11-2011 19:13:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6910, 15.5590 at 161 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
55 Km N of Messina (238439 inhabitants)
65 Km N of Reggio di Calabria (183035 inhabitants)
73 Km W of Lamezia Terme (70714 inhabitants)
90 Km SW of Cosenza (67546 inhabitants)
93 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
ML 2.5 2011-11-21
18:13:37
38.691 15.559 161 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1311499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-11-21 18:13:37 ± 0.32
Latitude 38.6910 ± 0.0216
Longitude 15.5590 ± 0.0542
Depth (km) 161 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1311499

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4788
Semi-minor axis of confidence ellipse (meter) 1427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 5277.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.55942
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1311499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:02:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAZ.HHE. 2011-11-21T18:14:20.16 0.6 undecidable manual Sg 154 90.6426 -0.123 48
IV.PLAC.HHN. 2011-11-21T18:14:20.04 0.6 undecidable manual Sg 109 80.7636 0.811 39
IV.CAR1.HHZ. 2011-11-21T18:14:19.29 0.6 undecidable manual Sg 42 83.9493 -0.269 46
IV.SOI.EHE. 2011-11-21T18:14:19.85 0.6 undecidable manual Sg 148 80.9523 0.612 42
IV.MSCL.HHE. 2011-11-21T18:14:17.00 1.0 undecidable manual Sg 158 54.7008 0.074 25
IV.JOPP.HHE. 2011-11-21T18:14:15.42 0.3 undecidable manual Sg 108 29.748 -0.062 80
IV.SCHR.EHZ. 2011-11-21T18:14:09.66 0.3 undecidable manual Pg 15 173.0934 0.799 47
IV.SALB.HHZ. 2011-11-21T18:14:06.92 0.3 undecidable manual Pg 27 147.9408 0.374 60
IV.PIPA.HHZ. 2011-11-21T18:14:05.87 0.1 undecidable manual Pg 50 139.5603 0.049 87
IV.MMME.HHE. 2011-11-21T18:14:02.13 0.3 undecidable manual Pg 198 87.9453 0.187 70
IV.MPAZ.HHE. 2011-11-21T18:14:02.01 0.3 undecidable manual Pg 154 90.6426 -0.109 71
IV.MCSR.HHE. 2011-11-21T18:14:01.62 0.3 undecidable manual Pg 202 75.1692 0.432 68
IV.CAR1.HHZ. 2011-11-21T18:14:01.22 0.1 undecidable manual Pg 42 83.9493 -0.482 88
IV.SOI.EHE. 2011-11-21T18:14:01.29 0.3 undecidable manual Pg 148 80.9523 -0.227 71
IV.PLAC.HHN. 2011-11-21T18:14:01.49 0.1 undecidable manual Pg 109 80.7636 -0.017 98
MN.CEL.HHE. 2011-11-21T18:14:00.07 0.3 undecidable manual Pg 149 55.8996 -0.162 75
IV.MSCL.HHE. 2011-11-21T18:13:59.86 0.3 undecidable manual Pg 158 54.7008 -0.321 73
IV.JOPP.HHE. 2011-11-21T18:13:58.97 0.1 undecidable manual Pg 108 29.748 -0.379 100
IV.NOVE.EHE. 2011-11-21T18:13:55.15 10.0 undecidable manual Pg 0 0 0
IV.MMN.HHZ. 2011-11-21T18:13:54.73 10.0 undecidable manual Sg 0 0 0
IV.MMN.HHZ. 2011-11-21T18:13:53.58 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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