Earthquake with magnitude of ML 1.7 on date 10-04-2020 and time 19:27:19 (Italy) in region Costa Ligure Occidentale (Imperia)

A magnitude ML 1.7 earthquake occured in region: Costa Ligure Occidentale (Imperia), on

  • 10-04-2020 17:27:19 (UTC)
  • 10-04-2020 19:27:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7900, 7.7350 at 17 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ospedaletti IM 2 3367 3367
Bordighera IM 5 10469 13836
Seborga IM 5 315 14151
Sanremo IM 5 54807 68958
Vallebona IM 6 1310 70268
Vallecrosia IM 7 6956 77224
San Biagio della Cima IM 8 1329 78553
Soldano IM 8 977 79530
Camporosso IM 9 5632 85162
Perinaldo IM 10 870 86032
Ventimiglia IM 10 24310 110342
Ceriana IM 11 1250 111592
Dolceacqua IM 11 2074 113666
Taggia IM 11 14116 127782
Apricale IM 12 629 128411
Isolabona IM 13 679 129090
Bajardo IM 13 312 129402
Riva Ligure IM 13 2910 132312
Castellaro IM 14 1256 133568
Pompeiana IM 14 823 134391
Santo Stefano al Mare IM 14 2197 136588
Terzorio IM 15 216 136804
Rocchetta Nervina IM 16 298 137102
Castel Vittorio IM 16 287 137389
Badalucco IM 17 1136 138525
Pigna IM 17 859 139384
Airole IM 17 407 139791
Cipressa IM 18 1290 141081
Pietrabruna IM 18 501 141582
Montalto Ligure IM 18 377 141959
Costarainera IM 18 828 142787
San Lorenzo al Mare IM 20 1297 144084

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SW of Sanremo (54807 inhabitants)
69 Km S of Cuneo (56081 inhabitants)
83 Km SW of Savona (61345 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 1.7 2020-04-10
17:27:19
43.7902 7.7352 17 2020-07-18
21:08:37
Bollettino Sismico Italiano INGV 79357271
Reviewed
Rev100
ML 1.6 2020-04-10
17:27:19
43.789 7.7353 16 2020-04-10
17:34:04
Sala Sismica INGV-Roma 78086061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-10 17:27:19 ± 0.16
Latitude 43.7902 ± 0.0072
Longitude 7.7352 ± 0.0062
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79357271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 653
Semi-minor axis of confidence ellipse (meter) 534
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 283
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.84266
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 78086061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-10 17:34:04

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 79357271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-20 08:49:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.ZAG.BHZ. 2020-04-10T17:28:30.06 3.0 undecidable manual Sn -2.11 0
MN.TIR.HHZ. 2020-04-10T17:28:24.89 3.0 negative manual Pg 8.39 0
IV.CRJA.HHZ. 2020-04-10T17:28:17.10 3.0 negative manual Pg 12.22 0
IV.MBFT.HHZ. 2020-04-10T17:28:14.40 3.0 positive manual Pg 11.57 0
IV.MFNL.HHZ. 2020-04-10T17:28:08.93 3.0 undecidable manual Pg 4.06 0
IV.SICLA.EHZ. 2020-04-10T17:28:08.33 3.0 positive manual Pn -1.2 0
IV.ROSPO.HHZ. 2020-04-10T17:27:59.55 3.0 undecidable manual Sg -0.13 0
IV.CTI.HHZ. 2020-04-10T17:27:57.31 3.0 undecidable manual Sn -3.05 0
IV.PIPA.HHZ. 2020-04-10T17:27:54.37 3.0 negative manual Pn -8.9 0
IV.CADC.HNZ. 2020-04-10T17:27:52.44 3.0 undecidable manual Sg 0.77 0
GU.PZZ.HHZ. 2020-04-10T17:27:46.57 0.3 undecidable manual S 328 93.5397 94 0.02 66
GU.STV.HHZ. 2020-04-10T17:27:37.48 0.3 undecidable manual S 327 60.0954 97 -0.2 67
GU.CANO.HHZ. 2020-04-10T17:27:37.63 0.3 undecidable manual S 41 61.1943 97 -0.34 66
GU.ENR.HHZ. 2020-04-10T17:27:36.28 0.3 undecidable manual S 333 54.501 98 0.08 71
GU.PZZ.HHZ. 2020-04-10T17:27:35.01 0.3 undecidable manual P 328 93.5397 94 0.07 66
GU.GBOS.HHZ. 2020-04-10T17:27:35.38 0.3 undecidable manual S 9 50.8158 99 0.18 70
GU.RORO.HHZ. 2020-04-10T17:27:33.44 0.3 undecidable manual S 36 44.4222 100 -0.09 71
GU.ENR.HHZ. 2020-04-10T17:27:29.12 0.1 negative manual P 333 54.501 98 0.16 93
GU.STV.HHZ. 2020-04-10T17:27:29.83 0.1 undecidable manual P 327 60.0954 97 0.01 94
GU.CANO.HHZ. 2020-04-10T17:27:29.98 0.1 positive manual P 41 61.1943 97 0 94
GU.GBOS.HHZ. 2020-04-10T17:27:28.83 0.1 undecidable manual P 9 50.8158 99 0.44 88
FR.SAOF.HHZ.00 2020-04-10T17:27:28.66 0.3 undecidable manual S 326 26.1516 111 -0.16 72
MN.TRI.HHZ. 2020-04-10T17:27:27.32 3.0 undecidable manual Pg 0.34 0
IV.IMI.HHZ. 2020-04-10T17:27:27.07 0.3 undecidable manual S 43 18.3705 123 0.1 75
GU.RORO.HHZ. 2020-04-10T17:27:27.40 0.1 negative manual P 36 44.4222 100 -0.03 96
FR.SAOF.HHZ.00 2020-04-10T17:27:24.47 0.1 negative manual P 326 26.1516 111 -0.23 95
IV.IMI.HHZ. 2020-04-10T17:27:23.55 0.1 positive manual P 43 18.3705 123 -0.08 100
IV.CRMI.HHZ. 2020-04-10T17:26:50.90 3.0 negative manual P -3.34 0
IV.FIR.HHZ. 2020-04-10T17:26:48.59 3.0 undecidable manual P -2.88 0
IV.BADI.EHZ. 2020-04-10T17:26:45.51 3.0 undecidable manual P -6.33 0
TV.SF04.EHZ. 2020-04-10T17:26:43.86 3.0 positive manual P -7.13 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IMI.HHE. ML:1.4 0.0001735 0.42 AML other m 2020-04-10T17:27:27.30
IV.IMI.HHN. ML:1.5 0.00019350000000000001 0.1 AML other m 2020-04-10T17:27:27.28
FR.SAOF.HHE.00 ML:1.8 0.000296 1.56 AML other m 2020-04-10T17:27:28.94
FR.SAOF.HHN.00 ML:1.7 0.00023549999999999998 1.64 AML other m 2020-04-10T17:27:29.15
GU.GBOS.HHN. ML:1.1 0.00002815 0.46 AML other m 2020-04-10T17:27:35.76
GU.GBOS.HHE. ML:1.4 0.00006065 0.16 AML other m 2020-04-10T17:27:35.54
GU.ENR.HHE. ML:2.2 0.0003695 0.14 AML other m 2020-04-10T17:27:36.43
GU.ENR.HHN. ML:2.3 0.00045299999999999995 0.26 AML other m 2020-04-10T17:27:36.55
GU.STV.HHN. ML:1.6 0.00007670000000000001 1.08 AML other m 2020-04-10T17:27:37.88
GU.STV.HHE. ML:1.8 0.000124 0.1 AML other m 2020-04-10T17:27:37.93
GU.CANO.HHE. ML:1.8 0.000133 0.3 AML other m 2020-04-10T17:27:38.65
GU.CANO.HHN. ML:2.0 0.00017999999999999998 0.28 AML other m 2020-04-10T17:27:38.77
GU.PZZ.HHE. ML:1.6 0.000041700000000000004 0.18 AML other m 2020-04-10T17:27:47.72
GU.PZZ.HHN. ML:1.7 0.000051250000000000006 1.56 AML other m 2020-04-10T17:27:48.84
GU.BHB.HHE. ML:1.3 0.0000165 1.28 AML other m 2020-04-10T17:27:55.29
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 not available