Earthquake with magnitude of ML 2.1 on date 07-02-2011 and time 22:28:38 (UTC) in region Tirreno Meridionale (MARE)

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

  • 07-02-2011 22:28:38 (UTC)
  • 07-02-2011 23:28:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4830, 15.4880 at 133 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
33 Km N of Messina (238439 inhabitants)
44 Km NW of Reggio di Calabria (183035 inhabitants)
91 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
Md 2.1
ML 2.1
2011-02-07
22:28:38
38.483 15.488 133 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1169819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-02-07 22:28:38 ± 0.17
Latitude 38.4830 ± 0.0081
Longitude 15.4880 ± 0.0172
Depth (km) 133 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1169819

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1570
Semi-minor axis of confidence ellipse (meter) 447
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 1749.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.95328
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1169819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:48:09

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1169819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:48:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHE. 2011-02-07T22:29:18.24 0.3 undecidable manual Sg 36 105.8163 0.033 67
IV.SOI.EHE. 2011-02-07T22:29:13.55 0.3 undecidable manual Sg 133 67.0773 0.17 70
IV.MPAZ.HHN. 2011-02-07T22:29:13.95 0.6 undecidable manual Sg 142 74.1702 -0.192 46
IV.MSCL.HHE. 2011-02-07T22:29:10.98 0.6 undecidable manual Sg 137 38.3283 0.041 51
IV.MSRU.HHN. 2011-02-07T22:29:10.02 0.3 undecidable manual Sg 176 24.3534 -0.175 75
IV.MILZ.HHN. 2011-02-07T22:29:10.79 0.3 undecidable manual Sg 224 32.4453 0.202 74
IV.CAR1.HHE. 2011-02-07T22:29:01.26 0.3 undecidable manual Pg 36 105.8163 -0.05 67
IV.MPAZ.HHN. 2011-02-07T22:28:59.14 0.3 undecidable manual Pg 142 74.1702 0.179 69
IV.SOI.EHE. 2011-02-07T22:28:58.57 0.3 undecidable manual Pg 133 67.0773 0.052 72
IV.MSCL.HHE. 2011-02-07T22:28:57.01 0.1 undecidable manual Pg 137 38.3283 -0.101 100
IV.ORI.HHN. 2011-02-07T22:28:57.06 10.0 undecidable manual Pg 0 0 0
IV.MSRU.HHN. 2011-02-07T22:28:56.52 0.3 undecidable manual Pg 176 24.3534 -0.159 76
IV.MILZ.HHN. 2011-02-07T22:28:56.92 0.3 undecidable manual Pg 224 32.4453 0.015 77
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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