Earthquake with magnitude of Md 2.4 on date 17-02-2020 and time 23:54:19 (UTC) in region Tirreno Centrale (MARE)

A magnitude Md 2.4 earthquake occured in region: Tirreno Centrale (MARE), on

  • 17-02-2020 23:54:19 (UTC)
  • 18-02-2020 00:54:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7800, 10.1620 at 25 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

An earthquake occurred to
58 Km E of Olbia (59368 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
Rev100
Md 2.4 2020-02-17
23:54:19
40.7797 10.1622 25 2020-04-21
17:28:37
Sala Sismica INGV-Roma 78447441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-17 23:54:19 ± 0.18
Latitude 40.7797 ± 0.0126
Longitude 10.1622 ± 0.0249
Depth (km) 25 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78447441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2180
Semi-minor axis of confidence ellipse (meter) 1250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 294
Circular confidence region, given by single value of horizontal uncertainty (meter) 2180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.82288
Epicentral distance of station farthest from the epicenter (degree) 2.26629
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 7
Type of magnitude Md
Reference to an origin 78447441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-21 17:28:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAON.HHE. 2020-02-17T23:55:13.13 0.6 undecidable manual S 23 199.7445 54 1 26
MN.VSL.HHE. 2020-02-17T23:55:02.89 0.6 undecidable manual S 205 157.1205 54 -0.06 44
IV.RIBO.EHE. 2020-02-17T23:54:56.19 0.6 undecidable manual P 17 251.5593 54 -0.26 24
TV.SU26.HHE. 2020-02-17T23:54:55.12 0.6 undecidable manual P 218 232.2897 54 1.05 21
IV.BARO.EHE. 2020-02-17T23:54:53.99 1.0 undecidable manual P 43 226.2069 54 0.69 13
IV.CELB.HHE. 2020-02-17T23:54:51.87 0.6 undecidable manual P 1 218.2149 54 -0.44 29
IV.TOLF.HHE. 2020-02-17T23:54:51.07 0.6 undecidable manual P 46 209.0352 54 -0.09 33
IV.MAON.HHE. 2020-02-17T23:54:49.29 0.6 undecidable manual P 23 199.7445 54 -0.72 29
IV.AGLI.HHE. 2020-02-17T23:54:47.17 0.6 undecidable manual S 295 91.3419 100 0.22 49
MN.VSL.HHE. 2020-02-17T23:54:44.65 0.1 undecidable manual P 205 157.1205 54 -0.06 87
IV.AGLI.HHE. 2020-02-17T23:54:35.32 0.1 negative manual P 295 91.3419 100 -0.16 100
TDMT - Time Domain Moment Tensor
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