Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 05-08-2017 and time 13:05:34 (UTC) in region Costa Ligure centro orientale (Genova)

A magnitude ML 1.5 earthquake occured in region: Costa Ligure centro orientale (Genova), on

  • 05-08-2017 13:05:34 (UTC)
  • 05-08-2017 15:05:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3520, 8.8380 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Genova GE 10 586655 586655
Mele GE 13 2725 589380
Arenzano GE 14 11519 600899
Cogoleto GE 16 9172 610071
Ceranesi GE 18 3875 613946
Campomorone GE 18 6996 620942
Sant'Olcese GE 18 5906 626848
Bogliasco GE 19 4488 631336
Serra Riccò GE 19 7885 639221
Masone GE 20 3679 642900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Genova (586655 inhabitants)
29 Km E of Savona (61345 inhabitants)
65 Km S of Alessandria (93943 inhabitants)
79 Km SE of Asti (76202 inhabitants)
83 Km W of La Spezia (93959 inhabitants)
96 Km S of Pavia (72576 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 1.5 2017-08-05
13:05:34		 44.3515 8.8385 10 2018-07-06
15:40:33		 Bollettino Sismico Italiano INGV 50104531
Reviewed
Rev100 		ML 1.5 2017-08-05
13:05:33		 44.3528 8.8257 10 2017-08-05
13:25:38		 Sala Sismica INGV-Roma 48712851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-05 13:05:34 ± 0.16
Latitude 44.3515 ± 0.0144
Longitude 8.8385 ± 0.0138
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50104531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1810
Semi-minor axis of confidence ellipse (meter) 800
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 332
Circular confidence region, given by single value of horizontal uncertainty (meter) 1810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.14389
Epicentral distance of station farthest from the epicenter (degree) 1.53874
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 50104531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-15 08:56:31

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 48712851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-05 13:25:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CIRO.HHE. 2017-08-05T13:06:02.21 0.6 undecidable manual P 325 170.7957 50 0.22 37
GU.TRAV.HHZ. 2017-08-05T13:06:00.37 0.6 undecidable manual P 327 154.7229 50 0.86 32
GU.PZZ.HHZ. 2017-08-05T13:05:57.58 0.3 undecidable manual P 278 137.5623 50 0.71 54
GU.BHB.HHZ. 2017-08-05T13:05:56.84 0.6 undecidable manual P 294 135.4644 50 0.29 41
GU.STV.HHZ. 2017-08-05T13:05:55.06 0.6 undecidable manual P 265 120.6903 50 0.8 36
GU.BURY.HHN. 2017-08-05T13:05:54.84 0.6 undecidable manual P 239 120.0909 50 0.67 38
FR.SAOF.HHE.00 2017-08-05T13:05:53.28 0.6 undecidable manual P 249 110.0121 50 0.65 39
GU.EQUI.HHZ. 2017-08-05T13:05:52.66 0.6 undecidable manual P 101 106.4157 50 0.59 41
GU.MGRO.HHZ. 2017-08-05T13:05:49.44 0.6 undecidable manual P 248 88.8444 50 0.09 47
IV.IMI.HHN. 2017-08-05T13:05:49.71 0.6 undecidable manual P 237 89.7435 50 0.21 46
GU.GORR.HHZ. 2017-08-05T13:05:49.47 0.6 undecidable manual S 52 45.8208 50 0.44 48
GU.GBOS.HHZ. 2017-08-05T13:05:47.58 0.6 undecidable manual P 262 80.2641 50 -0.45 45
IV.QLNO.HHZ. 2017-08-05T13:05:47.35 0.6 undecidable manual S 266 39.2274 50 0.08 52
GU.ROTM.HHZ. 2017-08-05T13:05:46.53 0.6 undecidable manual P 325 67.2771 50 0.5 45
GU.RORO.HHZ. 2017-08-05T13:05:45.40 0.3 undecidable manual P 247 66.8775 50 -0.58 66
IV.MSSA.HHZ. 2017-08-05T13:05:43.87 0.6 undecidable manual P 94 54.0015 50 -0.12 50
GU.CANO.HHZ. 2017-08-05T13:05:42.73 0.1 positive manual P 252 50.3163 50 -0.7 86
GU.GORR.HHZ. 2017-08-05T13:05:42.70 0.6 undecidable manual P 52 45.8208 50 -0.02 52
GU.RNCA.HHZ. 2017-08-05T13:05:40.44 0.6 undecidable manual S 34 15.9729 122 -0.21 53
IV.QLNO.HHZ. 2017-08-05T13:05:40.91 0.6 undecidable manual P 266 39.2274 50 -0.8 42
GU.PCP.HHZ. 2017-08-05T13:05:39.71 0.6 undecidable manual P 312 31.3464 50 -0.79 43
GU.RNCA.HHZ. 2017-08-05T13:05:37.42 0.1 positive manual P 34 15.9729 122 -0.47 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHN. ML:1.8 0.0002071197 0.3968 AML other m 2017-08-05T13:05:50.60
GU.GORR.HHE. ML:1.8 0.000178276 0.4224 AML other m 2017-08-05T13:05:50.36
GU.PCP.HHN. ML:1.2 0.00007761709 0.32 AML other m 2017-08-05T13:05:47.80
GU.PCP.HHE. ML:1.4 0.00010822580000000002 0.3776 AML other m 2017-08-05T13:05:46.33
GU.PZZ.HHN. ML:2.3 0.00011645055 0.256 AML other m 2017-08-05T13:06:00.12
GU.PZZ.HHE. ML:2.3 0.00011712530000000001 0.2816 AML other m 2017-08-05T13:05:59.50
IV.QLNO.HHE. ML:1.3 0.000072749595 0.1792 AML other m 2017-08-05T13:05:47.60
IV.QLNO.HHN. ML:1.2 0.000059517385 0.1792 AML other m 2017-08-05T13:05:48.29
GU.RNCA.HHE. ML:1.5 0.00027366585 0.0576 AML other m 2017-08-05T13:05:37.68
GU.RNCA.HHN. ML:1.4 0.00024133070000000002 0.0768 AML other m 2017-08-05T13:05:38.64
GU.RORO.HHE. ML:1.6 0.00006707971 0.1984 AML other m 2017-08-05T13:05:46.36
GU.RORO.HHN. ML:1.4 0.000041654364999999996 0.1024 AML other m 2017-08-05T13:05:47.31
GU.STV.HHE. ML:1.5 0.000024896164999999998 0.1984 AML other m 2017-08-05T13:05:56.59
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