Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 26-04-2013 and time 12:35:18 (Italy) in region 5 km E Cabella Ligure (AL)

A magnitude ML 1.5 earthquake occured in region: 5 km E Cabella Ligure (AL), on

  • 26-04-2013 10:35:18 (UTC)
  • 26-04-2013 12:35:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6900, 9.1540 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.

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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
Cabella Ligure AL 5 528 528
Albera Ligure AL 7 325 853
Fabbrica Curone AL 7 656 1509
Carrega Ligure AL 8 84 1593
Rocchetta Ligure AL 8 200 1793
Cantalupo Ligure AL 9 527 2320
Mongiardino Ligure AL 9 165 2485
Montacuto AL 9 278 2763
Roccaforte Ligure AL 10 136 2899
Zerba PC 11 77 2976
Santa Margherita di Staffora PV 11 473 3449
Brallo di Pregola PV 12 599 4048
Dernice AL 12 185 4233
Gremiasco AL 13 324 4557
San Sebastiano Curone AL 13 583 5140
Vobbia GE 13 409 5549
Propata GE 14 142 5691
Gorreto GE 14 97 5788
Rondanina GE 15 62 5850
Grondona AL 15 510 6360
Varzi PV 15 3279 9639
Fascia GE 15 81 9720
Bagnaria PV 15 658 10378
Menconico PV 16 360 10738
Crocefieschi GE 16 548 11286
Cerignale PC 16 127 11413
Garbagna AL 16 696 12109
Rovegno GE 16 554 12663
Ottone PC 16 516 13179
Isola del Cantone GE 16 1540 14719
Brignano-Frascata AL 16 456 15175
Valbrevenna GE 16 798 15973
Borghetto di Borbera AL 17 1966 17939
Ronco Scrivia GE 18 4417 22356
Corte Brugnatella PC 18 586 22942
Cecima PV 19 236 23178
Ponte Nizza PV 19 807 23985
Torriglia GE 19 2311 26296
Momperone AL 19 223 26519
Savignone GE 19 3205 29724
Casasco AL 19 129 29853
Avolasca AL 20 294 30147
Montebruno GE 20 240 30387
Fontanigorda GE 20 277 30664

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Genova (586655 inhabitants)
49 Km SE of Alessandria (93943 inhabitants)
55 Km S of Pavia (72576 inhabitants)
59 Km SW of Piacenza (102191 inhabitants)
68 Km NE of Savona (61345 inhabitants)
74 Km SE of Vigevano (63310 inhabitants)
79 Km E of Asti (76202 inhabitants)
84 Km NW of La Spezia (93959 inhabitants)
85 Km SW of Cremona (71901 inhabitants)
87 Km S of Milano (1345851 inhabitants)
94 Km W of Parma (192836 inhabitants)
94 Km S of Rho (50434 inhabitants)
94 Km SE of Novara (104380 inhabitants)
94 Km S of Sesto San Giovanni (81608 inhabitants)
97 Km S of Cinisello Balsamo (75078 inhabitants)
100 Km S of Monza (122671 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 2013-04-26
10:35:18		 44.6897 9.1542 8 2015-01-20
11:25:34		 Bollettino Sismico Italiano INGV 4312311
Reviewed
Rev100 		ML 1.5 2013-04-26
10:35:19		 44.6747 9.1847 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3333211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-26 10:35:18 ± 0.2
Latitude 44.6897 ± 0.0126
Longitude 9.1542 ± 0.0139
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4312311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1298
Semi-minor axis of confidence ellipse (meter) 1076
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 1300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.12860
Epicentral distance of station farthest from the epicenter (degree) 0.81119
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 3333211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-04-26 10:44:20

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 4312311
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:25:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLMA.HHZ. 2013-04-26T10:35:46.25 0.6 undecidable manual S 142 90.0432 50 0.04 44
IV.MSSA.HHZ. 2013-04-26T10:35:36.09 0.6 undecidable manual S 145 50.4162 50 0.47 43
GU.PCP.HHZ. 2013-04-26T10:35:36.45 0.6 undecidable manual S 251 50.8158 50 0.71 39
IV.PLMA.HHZ. 2013-04-26T10:35:34.69 0.1 undecidable manual P 142 90.0432 50 0 88
GU.PCP.HHZ. 2013-04-26T10:35:28.41 0.1 undecidable manual P 251 50.8158 50 -0.23 90
IV.BOB.HHZ. 2013-04-26T10:35:28.15 0.6 undecidable manual S 69 24.753 107 0.22 47
IV.MSSA.HHZ. 2013-04-26T10:35:28.01 0.1 undecidable manual P 145 50.4162 50 -0.57 83
GU.GORR.HHZ. 2013-04-26T10:35:24.64 0.6 undecidable manual S 130 14.2746 118 0.08 50
IV.BOB.HHZ. 2013-04-26T10:35:24.15 0.1 undecidable manual P 69 24.753 107 0.01 99
GU.GORR.HHZ. 2013-04-26T10:35:22.24 0.1 positive manual P 130 14.2746 118 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BOB.HHN. ML:1.8 0.0003725 0.76 AML other m 2013-04-26T10:35:28.87
IV.BOB.HHE. ML:1.8 0.000407 0.24 AML other m 2013-04-26T10:35:29.48
GU.GORR.HHN. ML:2.3 0.001955 0.16 AML other m 2013-04-26T10:35:25.23
GU.GORR.HHE. ML:2.1 0.0014249999999999998 0.18 AML other m 2013-04-26T10:35:25.25
IV.MSSA.HHN. ML:1.3 0.000049699999999999995 1.44 AML other m 2013-04-26T10:35:37.60
IV.MSSA.HHE. ML:1.3 0.000048100000000000004 0.74 AML other m 2013-04-26T10:35:37.85
GU.PCP.HHE. ML:1.1 0.00003255 1.2 AML other m 2013-04-26T10:35:38.96
GU.PCP.HHN. ML:1.1 0.00003025 1.46 AML other m 2013-04-26T10:35:39.33
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