Earthquake with magnitude of ML 2.4 on date 24-02-2018 and time 01:55:33 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude ML 2.4 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 24-02-2018 00:55:33 (UTC)
  • 24-02-2018 01:55:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9840, 8.5810 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
37 Km S of Savona (61345 inhabitants)
55 Km SW of Genova (586655 inhabitants)
66 Km E of Sanremo (54807 inhabitants)
94 Km E of Cuneo (56081 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
Bulletin
Rev1000
ML 2.4 2018-02-24
00:55:33
43.9838 8.5808 8 2019-04-24
14:49:36
Bollettino Sismico Italiano INGV 57609331
Reviewed
Rev100
ML 2.4 2018-02-24
00:55:32
43.9757 8.5925 4 2018-02-24
01:05:58
Sala Sismica INGV-Roma 54116151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-24 00:55:33 ± 0.29
Latitude 43.9838 ± 0.0090
Longitude 8.5808 ± 0.0062
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57609331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 955
Semi-minor axis of confidence ellipse (meter) 398
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 352
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.33275
Epicentral distance of station farthest from the epicenter (degree) 1.58371
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 57609331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-21 09:11:31

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 54116151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-24 01:05:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.EQUI.HHZ. 2018-02-24T00:56:09.80 0.3 undecidable manual S 80 126.873 50 -0.44 60
GU.STV.HHZ. 2018-02-24T00:56:04.10 0.6 undecidable manual S 287 104.118 50 -0.05 46
GU.ROTM.HHZ. 2018-02-24T00:56:03.15 0.3 undecidable manual S 349 97.7244 50 0.7 58
IV.PLMA.HHZ. 2018-02-24T00:56:03.34 0.3 undecidable manual S 85 101.8203 50 -0.2 67
GU.RRL.HHZ. 2018-02-24T00:56:02.42 0.1 undecidable manual P 307 175.7907 50 0.32 70
GU.GORR.HHZ. 2018-02-24T00:56:00.01 0.6 undecidable manual S 39 89.244 50 -0.19 46
IV.MSSA.HHZ. 2018-02-24T00:55:59.11 0.3 undecidable manual S 63 83.1501 50 0.54 64
GU.BURY.HHZ. 2018-02-24T00:55:59.22 1.0 undecidable manual S 255 84.8484 50 0.2 23
IV.GROG.HHN. 2018-02-24T00:55:54.11 1.0 undecidable manual P 120 121.989 50 0.3 21
GU.EQUI.HHZ. 2018-02-24T00:55:54.78 0.6 undecidable manual P 80 126.873 50 0.21 42
GU.RNCA.HHZ. 2018-02-24T00:55:52.94 0.6 undecidable manual S 28 61.5939 50 0.14 49
IV.IMI.HHZ. 2018-02-24T00:55:51.38 0.6 undecidable manual S 262 55.5 50 0.19 49
GU.STV.HHZ. 2018-02-24T00:55:51.41 0.3 undecidable manual P 287 104.118 50 0.36 64
IV.BOB.HNE. 2018-02-24T00:55:51.81 0.6 undecidable manual P 38 110.9001 50 -0.29 43
GU.ROTM.HHZ. 2018-02-24T00:55:50.10 0.6 undecidable manual P 349 97.7244 50 0.03 47
IV.PLMA.HHZ. 2018-02-24T00:55:50.44 0.6 undecidable manual P 85 101.8203 50 -0.26 44
GU.GORR.HHZ. 2018-02-24T00:55:49.13 0.3 undecidable manual P 39 89.244 50 0.36 66
GU.BURY.HHZ. 2018-02-24T00:55:48.42 0.3 undecidable manual P 255 84.8484 50 0.33 67
IV.MSSA.HHZ. 2018-02-24T00:55:47.73 0.1 undecidable manual P 63 83.1501 50 -0.1 95
GU.RORO.HHZ. 2018-02-24T00:55:47.89 0.3 undecidable manual S 289 43.4232 50 -0.08 77
GU.CANO.HHZ. 2018-02-24T00:55:45.16 0.6 undecidable manual S 312 36.9297 50 -1.07 37
GU.RNCA.HHZ. 2018-02-24T00:55:44.43 0.1 undecidable manual P 28 61.5939 50 -0.07 99
IV.IMI.HHZ. 2018-02-24T00:55:43.65 0.1 undecidable manual P 262 55.5 50 0.08 100
GU.RORO.HHZ. 2018-02-24T00:55:41.41 0.1 undecidable manual P 289 43.4232 50 -0.3 98
GU.CANO.HHZ. 2018-02-24T00:55:40.21 0.1 negative manual P 312 36.9297 50 -0.5 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHN. ML:2.4 0.000998 1.2 AML other m 2018-02-24T00:55:45.00
GU.CANO.HHE. ML:2.4 0.0009295 0.76 AML other m 2018-02-24T00:55:46.46
GU.RORO.HHN. ML:2.7 0.0014550000000000001 0.16 AML other m 2018-02-24T00:55:48.66
GU.RORO.HHE. ML:2.7 0.0016200000000000001 0.14 AML other m 2018-02-24T00:55:48.67
IV.IMI.HHN. ML:2.9 0.0016899999999999999 0.8 AML other m 2018-02-24T00:55:52.94
IV.IMI.HHE. ML:2.7 0.001091 0.26 AML other m 2018-02-24T00:55:52.95
GU.RNCA.HHE. ML:1.8 0.000131 0.3 AML other m 2018-02-24T00:55:54.24
GU.RNCA.HHN. ML:2.0 0.0001815 0.78 AML other m 2018-02-24T00:55:54.53
GU.BURY.HHE. ML:2.3 0.000262 0.38 AML other m 2018-02-24T00:55:59.49
GU.GORR.HHE. ML:2.6 0.0004395 1.54 AML other m 2018-02-24T00:56:00.91
IV.MSSA.HHE. ML:2.2 0.00022149999999999996 0.5 AML other m 2018-02-24T00:56:01.41
GU.BURY.HHN. ML:2.4 0.000345 1.36 AML other m 2018-02-24T00:56:02.88
IV.MSSA.HHN. ML:2.2 0.00023349999999999998 0.64 AML other m 2018-02-24T00:56:03.57
IV.PLMA.HHN. ML:2.2 0.0001545 0.64 AML other m 2018-02-24T00:56:04.37
IV.PLMA.HHE. ML:2.2 0.00014800000000000002 0.8 AML other m 2018-02-24T00:56:05.54
GU.ROTM.HHN. ML:2.9 0.0007695 0.62 AML other m 2018-02-24T00:56:05.67
GU.GORR.HHN. ML:2.4 0.000326 0.66 AML other m 2018-02-24T00:56:05.72
GU.STV.HHN. ML:2.4 0.000259 0.84 AML other m 2018-02-24T00:56:06.20
GU.STV.HHE. ML:2.4 0.000215 0.78 AML other m 2018-02-24T00:56:06.88
GU.EQUI.HHN. ML:2.3 0.000135 0.74 AML other m 2018-02-24T00:56:12.58
GU.EQUI.HHE. ML:2.2 0.00009545 0.6 AML other m 2018-02-24T00:56:13.12
GU.ROTM.HHE. ML:2.7 0.0005389999999999999 0.56 AML other m 2018-02-24T00:56:16.59
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
Waveforms Seismic signals in miniseed + resp format Download