Earthquake with magnitude of ML 2.5 on date 01-05-2011 and time 01:58:09 (Italy) in region Isole Eolie (Messina)

A magnitude ML 2.5 earthquake occured in region: Isole Eolie (Messina), on

  • 30-04-2011 23:58:09 (UTC)
  • 01-05-2011 01:58:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4770, 14.5010 at 7 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
97 Km E of Bagheria (55387 inhabitants)
97 Km W of Messina (238439 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 2011-04-30
23:58:09
38.477 14.501 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1204919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-04-30 23:58:09 ± 0.12
Latitude 38.4770 ± 0.0036
Longitude 14.5010 ± 0.0080
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1204919

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 732
Semi-minor axis of confidence ellipse (meter) 426
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 806.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61334
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 4
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1204919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:35:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ORI.HHE. 2011-04-30T23:58:54.77 10.0 undecidable manual Pg 0 0 0
IV.PLLN.SHE. 2011-04-30T23:58:29.61 0.6 undecidable manual Sg 210 62.1933 0.096 45
IV.GIB.HHN. 2011-04-30T23:58:22.32 0.6 undecidable manual Pg 218 68.0763 0.331 42
IV.PLLN.SHE. 2011-04-30T23:58:20.66 0.6 undecidable manual Pg 210 62.1933 -0.422 42
IV.ARVD.HHE. 2011-04-30T23:58:20.11 10.0 undecidable manual Pg 0 0 0
IV.LAV9.HHE. 2011-04-30T23:58:18.87 10.0 undecidable manual Pg 0 0 0
IV.IACL.HHZ. 2011-04-30T23:58:15.07 0.3 undecidable manual Sg 296 14.0748 0.051 74
IV.IFIL.EHZ. 2011-04-30T23:58:14.26 0.3 undecidable manual Sg 34 11.5773 0.007 75
IV.IFIL.EHZ. 2011-04-30T23:58:12.30 0.1 undecidable manual Pg 34 11.5773 0.031 100
IV.IACL.HHZ. 2011-04-30T23:58:12.64 0.1 undecidable manual Pg 296 14.0748 -0.069 99
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
Waveforms Seismic signals in miniseed + resp format Download