Earthquake with magnitude of ML 1.5 on date 21-12-2010 and time 11:04:45 (UTC) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.5 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 21-12-2010 11:04:45 (UTC)
  • 21-12-2010 12:04:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9100, 15.6930 at 33 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
Roghudi RC 7 1104 1104
Melito di Porto Salvo RC 8 11355 12459
Montebello Ionico RC 10 6214 18673
Motta San Giovanni RC 10 6208 24881
San Lorenzo RC 17 2640 27521
Bagaladi RC 17 1039 28560
Condofuri RC 18 5113 33673

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km S of Reggio di Calabria (183035 inhabitants)
34 Km SE of Messina (238439 inhabitants)
57 Km NE of Acireale (52622 inhabitants)
70 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 1.6
ML 1.5
2010-12-21
11:04:45
37.91 15.693 33 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1153019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-12-21 11:04:45 ± 0.19
Latitude 37.9100 ± 0.0252
Longitude 15.6930 ± 0.0068
Depth (km) 33 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1153019

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2772
Semi-minor axis of confidence ellipse (meter) 334
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 2863.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 214
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45506
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1153019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:25:54

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1153019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:25:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOV.HHE. 2010-12-21T11:05:03.46 0.6 undecidable manual Sg 285 50.5161 0.2 62
IV.SOI.EHE. 2010-12-21T11:05:00.46 0.6 undecidable manual Sg 60 36.4413 0.327 62
IV.MPNC.HHN. 2010-12-21T11:05:00.79 0.6 undecidable manual Sg 312 39.627 -0.025 66
IV.MMME.HHN. 2010-12-21T11:05:00.57 0.6 undecidable manual Sg 274 38.5281 -0.001 66
IV.NOV.HHE. 2010-12-21T11:04:55.82 0.3 undecidable manual Pg 285 50.5161 -0.041 97
IV.MTTG.HHZ. 2010-12-21T11:04:55.94 0.6 undecidable manual Sg 4 10.3785 -0.053 69
IV.SOI.EHE. 2010-12-21T11:04:54.09 0.3 undecidable manual Pg 60 36.4413 0.034 100
IV.MPNC.HHN. 2010-12-21T11:04:54.27 0.3 undecidable manual Pg 312 39.627 -0.18 97
IV.MMME.HHN. 2010-12-21T11:04:54.40 0.3 undecidable manual Pg 274 38.5281 0.09 98
IV.MTTG.HHZ. 2010-12-21T11:04:51.44 0.3 undecidable manual Pg 4 10.3785 -0.225 100
IV.PIPA.HHZ. 2010-12-21T11:04:37.16 10.0 undecidable manual Pg 0 0 0
IV.MCEL.HHZ. 2010-12-21T11:04:34.15 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