Earthquake with magnitude of ML 2.1 on date 30-03-2011 and time 19:51:45 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 30-03-2011 17:51:45 (UTC)
  • 30-03-2011 19:51:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5900, 15.5020 at 178 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
44 Km N of Messina (238439 inhabitants)
55 Km N of Reggio di Calabria (183035 inhabitants)
83 Km SW of Lamezia Terme (70714 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 2.1 2011-03-30
17:51:45
38.59 15.502 178 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1188999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-30 17:51:45 ± 0.13
Latitude 38.5900 ± 0.0144
Longitude 15.5020 ± 0.0276
Depth (km) 178 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1188999

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2730
Semi-minor axis of confidence ellipse (meter) 539
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 121
Circular confidence region, given by single value of horizontal uncertainty (meter) 2884.4
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 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.42358
Epicentral distance of station farthest from the epicenter (degree) 1.14124
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1188999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:13:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TIP.HHZ. 2011-03-30T17:52:35.95 0.3 undecidable manual Sg 59 126.6732 -0.087 85
IV.PLAC.HHE. 2011-03-30T17:52:31.09 0.3 undecidable manual Sg 101 82.7505 0.079 94
IV.MPAZ.HHZ. 2011-03-30T17:52:30.92 0.3 undecidable manual Sg 148 83.25 -0.134 92
IV.MSCL.HHZ. 2011-03-30T17:52:28.33 0.3 undecidable manual Sg 148 47.0196 0.096 100
MN.TIP.HHZ. 2011-03-30T17:52:14.82 0.3 undecidable manual Pg 59 126.6732 0.032 86
IV.PLAC.HHE. 2011-03-30T17:52:11.93 0.3 undecidable manual Pg 101 82.7505 0.043 94
IV.MPAZ.HHZ. 2011-03-30T17:52:11.94 0.3 undecidable manual Pg 148 83.25 0.028 94
IV.SOI.EHZ. 2011-03-30T17:52:11.47 0.3 undecidable manual Pg 140 74.8695 0.003 96
IV.MSCL.HHZ. 2011-03-30T17:52:10.20 0.3 undecidable manual Pg 148 47.0196 -0.083 100
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
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