Earthquake with magnitude of Mw 3.9 on date 07-02-2014 and time 04:26:40 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude Mw 3.9 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 07-02-2014 03:26:40 (UTC)
  • 07-02-2014 04:26:40 (UTC +01:00) Italian time
  • 07-02-2014 05:26:40 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.3100, 20.3200 at 2 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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

No Italian municipalities within 100 km from the epicenter with at least 50000 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
Reviewed
Rev200
ML 4.2
Mw 3.9
2014-02-07
03:26:40
38.31 20.32 2 2014-10-21
12:08:56
Sala Sismica INGV-Roma 5469381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-02-07 03:26:40
Latitude 38.3100
Longitude 20.3200
Depth (km) 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> AGENDA-INGV
Event type earthquake
Origin ID 5469381

Uncertainty

Field Value
Preferred uncertainty description
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 0.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 0
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitudes information

Mw:3.9

Field Value
Value 3.9
Uncertainty
Num. used stations
Type of magnitude Mw
Reference to an origin 5469381
Agency INGV
Autore TDMT-INGV Revised
Time of creation (UTC) 2014-02-07 13:34:10

ML:4.2

Field Value
Value 4.2
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 5469381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-02-07 05:50:56
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
MagnitudeMw 3.94
Scalar Moment1.00709E+22 dyne-cm
Computed depth7 km
QualityBa
Variance Reduction58.97%
Double Couple79%
CLVD21%
ISO0%
Model usedCIA
Modemanual
Statusreviewed

Moment Tensor Components

Component Value
Mrr6.0842E+21
Mtt1.0688E+21
Mpp-7.153E+21
Mrt-3.1391E+21
Mrp-6.7047E+21
Mtp-1.7017E+21

Nodal Planes

Name Strike Dip Rake
PN120269100
PN23572366

Fault Plane solution

Focal Mechanism

psmeca (GMT documentation)

20.32 38.31 7 202 69 100 357 23 66 1.00709 22 20.82 38.81

TDMT references

More info and references

Station Distribution

Station Distribution

TDMT station details

Sta Dist Azi V R zcor
KTHA 333.2 132.3 66.03% 224
ITM 189.2 131.1 63.5% 207
AGG 192.4 65.2 54.03% 205
LIT 273.1 42.6 40.94% 213
XOR 275.5 63.9 61.25% 214
LKD2 60.8 28.9 58.69% 191
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