Earthquake with magnitude of Mw 4.4 on date 21-05-2016 and time 16:33:09 (UTC) in region Macedonia [Land]
A magnitude Mw 4.4 earthquake occured in region: Macedonia [Land], on
- 21-05-2016 16:33:09 (UTC)
- 21-05-2016 18:33:09 (UTC +02:00) Italian time
and geographic coordinates (lat, lon) 41.2300, 20.9890 at 15 km depth.
The earthquake was located by: TDMT-INGV Revised.
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
OpenStreetMap
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 Evaluation Mw Rev501 |
Mw 4.4 | 2016-05-21 16:33:09 |
41.2295 | 20.9888 | 15 | 2016-05-22 20:58:10 |
TDMT-INGV Revised | 25277211 |
|
Reviewed Rev100 |
mb 5.1
Mwp 4.8 |
2016-05-21 16:33:09 |
41.2295 | 20.9888 | 10 | 2016-05-21 16:55:28 |
Sala Sismica INGV-Roma | 25246221 |
Preferred location and magnitude until now.
Origin information
Origin
| Field | Value |
|---|---|
| Time (UTC) | 2016-05-21 16:33:09 |
| Latitude | 41.2295 |
| Longitude | 20.9888 |
| Depth (km) | 15 (operator assigned) |
| Evaluation mode of Origin | manual |
| Evaluation status of Origin | preliminary |
| Version | 501 -> tdmt_reviewer |
| Event type | earthquake |
| Origin ID | 25277211 |
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) | |
| Confidence level of the uncertainty (%) | 68 |
Quality
| Field | Value |
|---|---|
| Largest azimuthal gap in station distribution as seen from epicenter (degree) | |
| 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
Mwp:4.8
| Field | Value |
|---|---|
| Value | 4.8 |
| Uncertainty | 0.2 |
| Num. used stations | 12 |
| Type of magnitude | Mwp |
| Reference to an origin | 25246221 |
| Agency | INGV |
| Autore | early-est_ee1.1.9 |
| Time of creation (UTC) | 2016-05-21 16:55:28 |
Mw:4.4
| Field | Value |
|---|---|
| Value | 4.4 |
| Uncertainty | |
| Num. used stations | |
| Type of magnitude | Mw |
| Reference to an origin | 25277211 |
| Agency | INGV |
| Autore | TDMT-INGV Revised |
| Time of creation (UTC) | 2016-05-22 20:58:10 |
mb:5.1
| Field | Value |
|---|---|
| Value | 5.1 |
| Uncertainty | 0.3 |
| Num. used stations | 37 |
| Type of magnitude | mb |
| Reference to an origin | 25246221 |
| Agency | INGV |
| Autore | early-est_ee1.1.9 |
| Time of creation (UTC) | 2016-05-21 16:55:28 |
TDMT - Time Domain Moment Tensor
Warning: the following TDMT solution has been computed starting from an event location obtained before the preferred one showned at the moment.
TDMT details
| Field | Value |
|---|---|
| Magnitude | 4.4 |
| Scalar Moment | 5.40067E+22 dyne-cm |
| Computed depth | 15 km |
| Quality | Aa |
| Variance Reduction | 67.64% |
| Double Couple | 71% |
| CLVD | 29% |
| ISO | 0% |
| Model used | CIA |
| Mode | manual |
| Status | reviewed |
Moment Tensor Components
| Component | Value |
|---|---|
| Mrr | -4.3738E+22 |
| Mtt | -4.2813E+21 |
| Mpp | 4.80193E+22 |
| Mrt | 1.53096E+22 |
| Mrp | -3.484E+20 |
| Mtp | 2.48397E+22 |
Nodal Planes
| Name | Strike | Dip | Rake |
|---|---|---|---|
| PN1 | 222 | 52 | -62 |
| PN2 | 1 | 46 | -121 |
Fault Plane solution
psmeca (GMT documentation)
20.9888 41.2295 15 222 52 -62 1 46 -121 5.40067 22 21.4888 41.7295TDMT references
More info and referencesPDF Solution
Station Distribution
TDMT station details
| Station | Distance (km) | Azimuth | Variance Reduction | zcor |
|---|---|---|---|---|
| VTS | 241.9 | 49.6 | 50.13% | 114 |
| SRS | 218.2 | 92.7 | 49.06% | 112 |
| FNA | 59.8 | 146.1 | 73.66% | 98 |
| TIR | 95.2 | 278.3 | 78.47% | 101 |
| PDG | 195.9 | 313.5 | 75.29% | 112 |
| DIVS | 329 | 345.9 | 52.5% | 124 |
| GRG | 122.6 | 103.9 | 70.89% | 104 |
| LKD2 | 272.5 | 186.1 | 50.78% | 125 |
| VLO | 151.6 | 236.6 | 72.85% | 110 |
| SCTE | 249 | 239.8 | 64.2% | 121 |
Fault Plane solutions in the area
Not available maps for this sismic event.