Earthquake with magnitude of ML 1.5 on date 17-09-2011 and time 16:57:45 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 17-09-2011 16:57:45 (UTC)
  • 17-09-2011 18:57:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.8120, 14.7110 at 9 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
92 Km S of Battipaglia (50786 inhabitants)
97 Km S of Salerno (135261 inhabitants)
99 Km S of Cava de' Tirreni (53659 inhabitants)
100 Km S of Castellammare di Stabia (66466 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 2.2
ML 1.5
2011-09-17
16:57:45
39.812 14.711 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1288349
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-09-17 16:57:45 ± 0.43
Latitude 39.8120 ± 0.0189
Longitude 14.7110 ± 0.0258
Depth (km) 9 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1288349

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2211
Semi-minor axis of confidence ellipse (meter) 2053
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 3041.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 316
Number of associated phases, regardless of their use for origin computation 16
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.86605
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1288349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:30:17

Md:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1288349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:30:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VMG.SHZ. 2011-09-17T16:58:40.04 10.0 undecidable manual Pg 0 0 0
IV.IMI.HHN. 2011-09-17T16:58:21.39 10.0 undecidable manual Pg 0 0 0
IV.MCRV.HHE. 2011-09-17T16:58:20.93 10.0 undecidable manual Pg 0 0 0
MN.CUC.HHZ. 2011-09-17T16:58:13.61 0.6 undecidable manual Sg 78 96.126 -0.221 63
IV.CDRU.HHE. 2011-09-17T16:58:12.34 0.6 undecidable manual Sg 34 90.4428 0.021 67
IV.MGR.HHE. 2011-09-17T16:58:09.36 0.6 undecidable manual Sg 63 80.1642 -0.222 65
IV.CMPR.HHE. 2011-09-17T16:58:08.10 0.6 undecidable manual Sg 42 75.2691 -0.183 67
IV.BULG.HHN. 2011-09-17T16:58:05.82 0.6 undecidable manual Sg 62 63.8916 0.587 62
MN.CUC.HHZ. 2011-09-17T16:58:01.67 0.3 undecidable manual Pg 78 96.126 -0.066 98
IV.CDRU.HHE. 2011-09-17T16:58:00.94 0.3 undecidable manual Pg 34 90.4428 0.076 99
IV.CMPR.HHE. 2011-09-17T16:57:58.35 0.3 undecidable manual Pg 42 75.2691 -0.185 100
IV.MGR.HHE. 2011-09-17T16:57:58.93 0.3 undecidable manual Pg 63 80.1642 -0.355 96
IV.MA9.HHN. 2011-09-17T16:57:58.25 10.0 undecidable manual Pg 0 0 0
IV.BULG.HHN. 2011-09-17T16:57:57.35 0.3 undecidable manual Pg 62 63.8916 0.577 93
IV.PTF.SHN. 2011-09-17T16:57:57.65 10.0 undecidable manual Sg 0 0 0
IV.PTF.SHN. 2011-09-17T16:57:56.02 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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