A magnitude ML 0.8 earthquake occured in region: 5 km SW Massa (MS), on
and geographic coordinates (lat, lon) 43.9980, 10.1220 at 7 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Massa | MS | 5 | 69479 | 69479 |
Montignoso | MS | 5 | 10323 | 79802 |
Forte dei Marmi | LU | 6 | 7510 | 87312 |
Seravezza | LU | 9 | 13073 | 100385 |
Carrara | MS | 9 | 63133 | 163518 |
Pietrasanta | LU | 10 | 24007 | 187525 |
Ortonovo | SP | 12 | 8277 | 195802 |
Castelnuovo Magra | SP | 14 | 8415 | 204217 |
Stazzema | LU | 14 | 3193 | 207410 |
Ameglia | SP | 15 | 4365 | 211775 |
Camaiore | LU | 16 | 32513 | 244288 |
Fosdinovo | MS | 17 | 4883 | 249171 |
Viareggio | LU | 18 | 62467 | 311638 |
Vagli Sotto | LU | 18 | 939 | 312577 |
Sarzana | SP | 18 | 21976 | 334553 |
Lerici | SP | 19 | 10228 | 344781 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2018-04-26 03:11:32 |
43.9982 | 10.1218 | 7 | 2018-04-26 03:21:30 |
Sala Sismica INGV-Roma | 56111391 |
Field | Value |
---|---|
Time (UTC) | 2018-04-26 03:11:32 ± 0.15 |
Latitude | 43.9982 ± 0.0090 |
Longitude | 10.1218 ± 0.0075 |
Depth (km) | 7 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 56111391 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 744 |
Semi-minor axis of confidence ellipse (meter) | 671 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 2 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 740.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 152 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.39 |
Epicentral distance of station closest to the epicenter (degree) | 0.16907 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40110 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 56111391 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2018-04-26 03:21:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PII.HHZ. | 2018-04-26T03:11:47.73 | 0.1 | undecidable | manual | S | 133 | 44.5221 | 50 | -0.39 | 88 |
GU.SARM.EHZ. | 2018-04-26T03:11:43.24 | 0.1 | undecidable | manual | S | 47 | 30.3474 | 102 | -0.31 | 92 |
GU.MAIM.HHZ. | 2018-04-26T03:11:43.18 | 0.1 | undecidable | manual | S | 107 | 30.9468 | 102 | -0.59 | 85 |
MN.VLC.HHZ. | 2018-04-26T03:11:42.59 | 0.1 | undecidable | manual | S | 50 | 27.6501 | 103 | -0.06 | 98 |
GU.CARD.HHZ. | 2018-04-26T03:11:42.90 | 0.1 | undecidable | manual | S | 84 | 28.9488 | 103 | -0.17 | 95 |
IV.PII.HHZ. | 2018-04-26T03:11:41.83 | 0.1 | undecidable | manual | P | 133 | 44.5221 | 50 | 0.19 | 92 |
GU.FIVI.HNE. | 2018-04-26T03:11:41.78 | 0.1 | undecidable | manual | S | 1 | 26.751 | 104 | -0.56 | 87 |
IV.PLMA.HHZ. | 2018-04-26T03:11:40.30 | 0.1 | undecidable | manual | S | 285 | 22.1556 | 106 | -0.5 | 90 |
GU.CARD.HHZ. | 2018-04-26T03:11:39.14 | 0.1 | undecidable | manual | P | 84 | 28.9488 | 103 | 0.41 | 90 |
GU.SARM.EHZ. | 2018-04-26T03:11:39.34 | 0.1 | positive | manual | P | 47 | 30.3474 | 102 | 0.34 | 92 |
GU.MAIM.HHZ. | 2018-04-26T03:11:39.48 | 0.1 | positive | manual | P | 107 | 30.9468 | 102 | 0.35 | 91 |
GU.EQUI.HHZ. | 2018-04-26T03:11:39.68 | 0.1 | undecidable | manual | S | 8 | 18.7701 | 109 | -0.01 | 100 |
MN.VLC.HHZ. | 2018-04-26T03:11:38.91 | 0.1 | undecidable | manual | P | 50 | 27.6501 | 103 | 0.43 | 90 |
GU.FIVI.HNE. | 2018-04-26T03:11:38.48 | 0.1 | undecidable | manual | P | 1 | 26.751 | 104 | 0.17 | 95 |
GU.EQUI.HHZ. | 2018-04-26T03:11:37.21 | 0.1 | undecidable | manual | P | 8 | 18.7701 | 109 | 0.44 | 92 |
IV.PLMA.HHZ. | 2018-04-26T03:11:37.61 | 0.1 | negative | manual | P | 285 | 22.1556 | 106 | 0.19 | 96 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.PLMA.HHN. | ML:1.0 | 0.00007813764500000001 | 0.24 | AML | other | m | 2018-04-26T03:11:40.44 |
IV.PLMA.HHE. | ML:0.9 | 0.000057389474999999995 | 0.2 | AML | other | m | 2018-04-26T03:11:40.65 |
MN.VLC.HHN. | ML:0.7 | 0.0000226898 | 0.2608 | AML | other | m | 2018-04-26T03:11:42.80 |
MN.VLC.HHE. | ML:0.7 | 0.000028063575000000002 | 0.08 | AML | other | m | 2018-04-26T03:11:42.89 |
GU.SARM.EHE. | ML:0.9 | 0.00004084657 | 0.12 | AML | other | m | 2018-04-26T03:11:43.84 |
GU.SARM.EHN. | ML:1.1 | 0.0000590034 | 0.1808 | AML | other | m | 2018-04-26T03:11:43.59 |
GU.MAIM.HHE. | ML:0.7 | 0.00002561138 | 0.24 | AML | other | m | 2018-04-26T03:11:44.09 |
GU.MAIM.HHN. | ML:0.5 | 0.00001736269 | 0.1808 | AML | other | m | 2018-04-26T03:11:44.15 |
IV.PII.HHE. | ML:0.7 | 0.000014262065500000001 | 0.2592 | AML | other | m | 2018-04-26T03:11:49.19 |
IV.PII.HHN. | ML:0.7 | 0.000016129615 | 0.3008 | AML | other | m | 2018-04-26T03:11:48.75 |