Official address: http://terremoti.ingv.it
Earthquake with magnitude of mb 5.0 on date 19-12-2018 and time 20:35:53 (Italy) in region Costa Occidentale Peloponneso (GRECIA)
A magnitude mb 5.0 earthquake occured in region: Costa Occidentale Peloponneso (GRECIA), on
- 19-12-2018 19:35:53 (UTC)
- 19-12-2018 20:35:53 (UTC +01:00) Italian time
- 19-12-2018 21:35:53 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)
and geographic coordinates (lat, lon) 36.69, 21.55 at 20 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
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
The earthquake effects in MCS scale as obtained from the compiled questionnaire
This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
| Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
|---|---|---|---|---|---|---|---|---|
| Rev 200 | mb 5.0 | 2018-12-19 19:35:53 |
36.69 | 21.55 | 20 | 2018-12-19 21:35:20 |
Sala Sismica INGV-Roma | 64000871 |
| Rev 100 |
mb 5.0
Mwp 4.8 |
2018-12-19 19:35:53 |
36.69 | 21.55 | 20 | 2018-12-19 19:51:22 |
Sala Sismica INGV-Roma | 63999691 |
Preferred location and magnitude until now.
Origin information
Origin
| Field | Value |
|---|---|
| Time (UTC) | 2018-12-19 19:35:53 ± 0 |
| Latitude | 36.69 |
| Longitude | 21.55 |
| Depth (km) | 20 ± 4 (from location) |
| Evaluation mode of Origin | manual |
| Evaluation status of Origin | reviewed |
| Version | 200 -> SURVEY-INGV |
| Event type | earthquake |
| Origin ID | 64000871 |
Uncertainty
| Field | Value |
|---|---|
| Preferred uncertainty description | horizontal uncertainty |
| 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) | 3494 |
| Confidence level of the uncertainty (%) | 68 |
Quality
| Field | Value |
|---|---|
| Largest azimuthal gap in station distribution as seen from epicenter (degree) | 106 |
| 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) | 1.45 |
| 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 | 8 |
| Type of magnitude | Mwp |
| Reference to an origin | 63999691 |
| Agency | INGV |
| Autore | Auto added |
| Time of creation (UTC) | 2018-12-19 19:51:22 |
mb:5
| Field | Value |
|---|---|
| Value | 5 |
| Uncertainty | 0.3 |
| Num. used stations | 41 |
| Type of magnitude | mb |
| Reference to an origin | 63999691 |
| Agency | INGV |
| Autore | Auto added |
| Time of creation (UTC) | 2018-12-19 19:51:22 |
mb:5
| Field | Value |
|---|---|
| Value | 5 |
| Uncertainty | 0.3 |
| Num. used stations | |
| Type of magnitude | mb |
| Reference to an origin | 64000871 |
| Agency | INGV |
| Autore | Sala Sismica INGV-Roma |
| Time of creation (UTC) | 2018-12-19 21:35:20 |
TDMT - Time Domain Moment Tensor
TDMT details
| Field | Value |
|---|---|
| Magnitude | 4.7 |
| Scalar Moment | 1.47318E+23 dyne-cm |
| Computed depth | 22 km |
| Quality | Bb |
| Variance Reduction | 56.46% |
| Double Couple | 49% |
| CLVD | 51% |
| ISO | 0% |
| Model used | CIA |
| Mode | automatic |
| Status | preliminary |
Moment Tensor Components
| Component | Value |
|---|---|
| Mrr | -8.44731E+22 |
| Mtt | 5.50756E+22 |
| Mpp | 2.93975E+22 |
| Mrt | 6.18011E+22 |
| Mrp | -1.170461E+23 |
| Mtp | -6.3084E+21 |
Nodal Planes
| Name | Strike | Dip | Rake |
|---|---|---|---|
| PN1 | 328 | 77 | -84 |
| PN2 | 121 | 14 | -116 |
Focal Mechanism
psmeca (GMT documentation)
21.549 36.694 22 328 77 -84 121 14 -116 1.47318 23 22.049 37.194TDMT references
More info and referencesPDF Solution
Station Distribution
TDMT station details
| Station | Distance (km) | Azimuth | Variance Reduction | zcor |
|---|---|---|---|---|
| AGRP | 189.5 | 4.6 | 25.03% | 114 |
| ITM | 63.4 | 31.8 | 75.01% | 99 |
| KRND | 161.7 | 61.3 | 73.19% | 111 |
| VLI | 124.9 | 88.4 | 67.31% | 106 |
| ANKY | 182.2 | 119.7 | 63.67% | 114 |
| FSK | 214.4 | 336.3 | 16.21% | 117 |
Focal Mechanism in the area
Not available maps for this sismic event.