Earthquake with magnitude of ML 1.5 on date 21-08-2010 and time 16:46:51 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.5 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 21-08-2010 14:46:51 (UTC)
  • 21-08-2010 16:46:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2870, 15.4350 at 10 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villafranca Tirrena ME 6 8584 8584
Spadafora ME 9 5021 13605
Venetico ME 10 3911 17516
Saponara ME 10 3988 21504
Valdina ME 12 1355 22859
Roccavaldina ME 13 1133 23992
Rometta ME 13 6650 30642
Torregrotta ME 13 7431 38073
Messina ME 15 238439 276512
Monforte San Giorgio ME 15 2777 279289
CondrĂ² ME 16 493 279782
San Pier Niceto ME 16 2837 282619
Pace del Mela ME 16 6239 288858
Gualtieri SicaminĂ² ME 17 1807 290665
Milazzo ME 18 31646 322311
Villa San Giovanni RC 19 13784 336095
San Filippo del Mela ME 19 7115 343210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of Messina (238439 inhabitants)
27 Km NW of Reggio di Calabria (183035 inhabitants)
79 Km N of Acireale (52622 inhabitants)
92 Km NE of Catania (314555 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 2.0
ML 1.5
2010-08-21
14:46:51
38.287 15.435 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1100549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-08-21 14:46:51 ± 0.42
Latitude 38.2870 ± 0.0288
Longitude 15.4350 ± 0.0115
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1100549

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3211
Semi-minor axis of confidence ellipse (meter) 947
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 3352.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68169
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1100549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:17:37

Md:2.0

Field Value
Value 2.0
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 1100549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:17:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNO.SHE. 2010-08-21T14:47:15.00 0.3 undecidable manual Sg 239 75.6687 0.216 91
IV.SOI.EHN. 2010-08-21T14:47:10.81 0.3 undecidable manual Sg 113 58.8966 0.501 88
IV.MNO.SHE. 2010-08-21T14:47:05.06 0.3 undecidable manual Pg 239 75.6687 -0.043 94
IV.MTTG.HHZ. 2010-08-21T14:47:04.91 0.3 undecidable manual Sg 144 39.0276 -0.08 100
IV.SOI.EHN. 2010-08-21T14:47:02.34 0.3 undecidable manual Pg 113 58.8966 -0.177 94
IV.MTTG.HHZ. 2010-08-21T14:46:59.07 0.3 undecidable manual Pg 144 39.0276 -0.377 94
IV.MSC.EHZ. 2010-08-21T14:46:43.33 10.0 undecidable manual Pg 0 0 0
IV.STR3.BHE. 2010-08-21T14:46:39.31 10.0 undecidable manual Pg 0 0 0
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