Earthquake with magnitude of ML 1.7 on date 02-09-2011 and time 19:43:41 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.7 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 02-09-2011 19:43:41 (UTC)
  • 02-09-2011 21:43:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4510, 15.4750 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
29 Km N of Messina (238439 inhabitants)
41 Km NW of Reggio di Calabria (183035 inhabitants)
94 Km SW of Lamezia Terme (70714 inhabitants)
97 Km N of Acireale (52622 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 1.7
2011-09-02
19:43:41
38.451 15.475 133 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1280359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-09-02 19:43:41 ± 0.16
Latitude 38.4510 ± 0.0099
Longitude 15.4750 ± 0.0218
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 1280359

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1902
Semi-minor axis of confidence ellipse (meter) 875
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 2195.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 284
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75363
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1280359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:18:58

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1280359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:18:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHE. 2011-09-02T19:44:18.71 0.3 undecidable manual Sg 90 83.6496 0.026 70
IV.MPAZ.HHZ. 2011-09-02T19:44:17.23 0.3 undecidable manual Sg 140 72.0723 -0.11 70
IV.JOPP.HHN. 2011-09-02T19:44:14.40 0.3 undecidable manual Sg 64 39.5271 -0.038 76
IV.MSCL.HHE. 2011-09-02T19:44:14.40 0.3 undecidable manual Sg 132 36.6411 0.152 74
IV.PLAC.HHE. 2011-09-02T19:44:03.13 0.3 undecidable manual Pg 90 83.6496 0.078 69
IV.MPAZ.HHZ. 2011-09-02T19:44:02.35 0.3 undecidable manual Pg 140 72.0723 0.075 71
IV.MSCL.HHE. 2011-09-02T19:44:00.42 0.3 undecidable manual Pg 132 36.6411 -0.071 75
IV.JOPP.HHN. 2011-09-02T19:44:00.52 0.1 undecidable manual Pg 64 39.5271 -0.079 100
IV.PIPA.HHE. 2011-09-02T19:43:53.09 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download