Earthquake with magnitude of Mw 4.4 on date 23-05-2013 and time 14:09:05 (UTC) in region Costa Greca Ionica (GRECIA)
A magnitude Mw 4.4 earthquake occured in region: Costa Greca Ionica (GRECIA), on
- 23-05-2013 14:09:05 (UTC)
- 23-05-2013 16:09:05 (UTC +02:00) Italian time
- 23-05-2013 17:09:05 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)
and geographic coordinates (lat, lon) 38.6600, 20.4520 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.
Display location by
GeoHack
GoogleMap
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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
Not available maps for this sismic event.
Seismic hazard
Not available maps for this sismic event.
Shakemap
Not available maps for this sismic event.
Felt maps
Not available maps for this sismic event.
Locations history
| Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
|---|---|---|---|---|---|---|---|---|
|
Reviewed Rev200 |
mb 4.8
Mw 4.4 |
2013-05-23 14:09:05 |
38.66 | 20.452 | 2 | 2014-10-21 12:08:56 |
Sala Sismica INGV-Roma | 3581551 |
Preferred location and magnitude until now.
Origin information
Origin
| Field | Value |
|---|---|
| Time (UTC) | 2013-05-23 14:09:05 |
| Latitude | 38.6600 |
| Longitude | 20.4520 |
| Depth (km) | 2 (from location) |
| Evaluation mode of Origin | manual |
| Evaluation status of Origin | reviewed |
| Version | 200 -> AGENDA-INGV |
| Event type | earthquake |
| Origin ID | 3581551 |
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:4.4
| Field | Value |
|---|---|
| Value | 4.4 |
| Uncertainty | |
| Num. used stations | |
| Type of magnitude | Mw |
| Reference to an origin | 3581551 |
| Agency | INGV |
| Autore | TDMT-INGV Revised |
| Time of creation (UTC) | 2014-02-04 16:03:46 |
mb:4.8
| Field | Value |
|---|---|
| Value | 4.8 |
| Uncertainty | 0.4 |
| Num. used stations | |
| Type of magnitude | mb |
| Reference to an origin | 3581551 |
| Agency | INGV |
| Autore | Sala Sismica INGV-Roma |
| Time of creation (UTC) | 2013-05-23 15:41:13 |
TDMT - Time Domain Moment Tensor
TDMT details
| Field | Value |
|---|---|
| Magnitude | Mw 4.41 |
| Scalar Moment | 5.17853E+22 dyne-cm |
| Computed depth | 2 km |
| Quality | Ab |
| Variance Reduction | 65.06% |
| Double Couple | 41% |
| CLVD | 59% |
| ISO | 0% |
| Model used | CIA |
| Mode | manual |
| Status | reviewed |
Moment Tensor Components
| Component | Value |
|---|---|
| Mrr | 3.825E+22 |
| Mtt | 6.3719E+21 |
| Mpp | -4.46219E+22 |
| Mrt | -6.6097E+21 |
| Mrp | -8.1806E+21 |
| Mtp | 3.26067E+22 |
Nodal Planes
| Name | Strike | Dip | Rake |
|---|---|---|---|
| PN1 | 176 | 52 | 122 |
| PN2 | 311 | 48 | 55 |
Fault Plane solution
psmeca (GMT documentation)
20.452 38.66 2 176 52 122 311 48 55 5.17853 22 20.952 39.16TDMT references
More info and referencesPDF Solution
Station Distribution
TDMT station details
| Station | Distance (km) | Azimuth | Variance Reduction | zcor |
|---|---|---|---|---|
| ITM | 209.3 | 141.3 | 40.25% | 208 |
| AGG | 168.4 | 75.6 | 64.21% | 199 |
| FNA | 248.7 | 18.4 | 63.67% | 211 |
| HORT | 312.9 | 45.7 | 67.17% | 216 |
| THE | 307.2 | 43.8 | 66.62% | 216 |
| XOR | 249.9 | 70.9 | 73.05% | 208 |
Fault Plane solutions in the area
Not available maps for this sismic event.