Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 26-03-2017 and time 05:18:43 (Italy) in region 3 km S San Marco la Catola (FG)

A magnitude ML 1.8 earthquake occured in region: 3 km S San Marco la Catola (FG), on

  • 26-03-2017 03:18:43 (UTC)
  • 26-03-2017 05:18:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5010, 15.0010 at 22 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
San Marco la Catola FG 3 1012 1012
Volturara Appula FG 4 430 1442
Tufara CB 5 925 2367
Celenza Valfortore FG 7 1598 3965
Gambatesa CB 7 1464 5429
Castelvetere in Val Fortore BN 8 1240 6669
Motta Montecorvino FG 10 730 7399
San Bartolomeo in Galdo BN 10 4867 12266
Carlantino FG 10 980 13246
Volturino FG 11 1743 14989
Baselice BN 12 2397 17386
Pietramontecorvino FG 12 2721 20107
Macchia Valfortore CB 13 576 20683
Alberona FG 13 985 21668
Castelnuovo della Daunia FG 14 1445 23113
Riccia CB 14 5262 28375
Pietracatella CB 14 1375 29750
Casalvecchio di Puglia FG 14 1877 31627
Casalnuovo Monterotaro FG 16 1556 33183
Roseto Valfortore FG 16 1074 34257
Foiano di Val Fortore BN 17 1410 35667
Sant'Elia a Pianisi CB 17 1818 37485
Jelsi CB 17 1781 39266
Colletorto CB 18 1938 41204
Castelpagano BN 19 1483 42687
Montefalcone di Val Fortore BN 19 1525 44212
Biccari FG 20 2800 47012
Monacilioni CB 20 523 47535

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of San Severo (53905 inhabitants)
45 Km NE of Benevento (60091 inhabitants)
45 Km W of Foggia (151991 inhabitants)
67 Km N of Avellino (54857 inhabitants)
73 Km NE of Caserta (76326 inhabitants)
78 Km W of Manfredonia (57279 inhabitants)
80 Km W of Cerignola (58396 inhabitants)
81 Km NE of Acerra (59573 inhabitants)
86 Km NE of Afragola (65057 inhabitants)
89 Km NE of Aversa (53047 inhabitants)
89 Km NE of Casoria (77642 inhabitants)
92 Km NE of Giugliano in Campania (122974 inhabitants)
92 Km N of Cava de' Tirreni (53659 inhabitants)
93 Km NE of Scafati (50787 inhabitants)
93 Km NE of Portici (55274 inhabitants)
94 Km N of Salerno (135261 inhabitants)
94 Km NE of Ercolano (53709 inhabitants)
95 Km NE of Marano di Napoli (59874 inhabitants)
96 Km NE of Torre del Greco (86275 inhabitants)
97 Km NE of Napoli (974074 inhabitants)
99 Km N of Battipaglia (50786 inhabitants)
100 Km NE of Castellammare di Stabia (66466 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 1.8 2017-03-26
03:18:43		 41.5013 15.0008 22 2018-01-10
09:55:04		 Bollettino Sismico Italiano INGV 50113081
Reviewed
Rev100 		ML 1.7 2017-03-26
03:18:44		 41.4907 15.0067 17 2017-03-26
03:31:25		 Sala Sismica INGV-Roma 42955841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-26 03:18:43 ± 0.2
Latitude 41.5013 ± 0.0063
Longitude 15.0008 ± 0.0084
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50113081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 830
Semi-minor axis of confidence ellipse (meter) 154
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
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) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.71046
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 50113081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-15 13:44:07

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 42955841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-26 03:31:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGRT.HHZ. 2017-03-26T03:19:04.96 0.6 undecidable manual S 65 67.6767 101 0.19 44
IV.APRC.EHZ. 2017-03-26T03:19:00.59 0.6 undecidable manual S 58 53.2023 105 -0.41 42
IV.MRB1.HHZ. 2017-03-26T03:18:59.22 0.6 undecidable manual S 184 42.1245 110 1.05 33
IV.MSAG.HHZ. 2017-03-26T03:18:58.01 0.1 undecidable manual P 72 78.8655 100 0.34 83
IV.BSSO.HHZ. 2017-03-26T03:18:56.48 0.6 undecidable manual S 278 34.1436 115 0.26 45
IV.SGRT.HHZ. 2017-03-26T03:18:56.24 0.1 undecidable manual P 65 67.6767 101 0.27 86
IV.PSB1.HHZ. 2017-03-26T03:18:55.65 0.6 undecidable manual S 207 34.6431 115 -0.69 41
IV.SACR.HHZ. 2017-03-26T03:18:54.24 0.6 undecidable manual S 245 27.1506 122 -0.32 46
IV.MELA.HHZ. 2017-03-26T03:18:54.08 0.3 undecidable manual S 25 24.9528 125 -0.01 73
IV.APRC.EHZ. 2017-03-26T03:18:53.11 0.1 undecidable manual P 58 53.2023 105 -0.68 77
IV.CIGN.HHZ. 2017-03-26T03:18:53.13 0.6 undecidable manual S 335 18.7701 134 0.33 46
IV.TRIV.HHZ. 2017-03-26T03:18:53.05 0.3 undecidable manual P 308 47.5191 107 0.09 69
IV.MRB1.HHZ. 2017-03-26T03:18:52.45 0.3 undecidable manual P 184 42.1245 110 0.29 67
IV.MOCO.HNE. 2017-03-26T03:18:52.34 0.3 undecidable manual S 138 19.5693 133 -0.62 64
IV.GATE.HHZ. 2017-03-26T03:18:51.97 0.6 undecidable manual S 280 7.6812 158 0.84 39
IV.BSSO.HHZ. 2017-03-26T03:18:50.89 0.1 undecidable manual P 278 34.1436 115 -0.14 94
IV.PSB1.HHZ. 2017-03-26T03:18:50.95 0.1 positive manual P 207 34.6431 115 -0.15 94
IV.MELA.HHZ. 2017-03-26T03:18:49.65 0.1 positive manual P 25 24.9528 125 -0.15 94
IV.SACR.HHZ. 2017-03-26T03:18:49.81 0.1 undecidable manual P 245 27.1506 122 -0.27 92
IV.CIGN.HHZ. 2017-03-26T03:18:49.24 0.3 undecidable manual P 335 18.7701 134 0.18 72
IV.MOCO.HNE. 2017-03-26T03:18:49.43 0.3 undecidable manual P 138 19.5693 133 0.28 70
IV.GATE.HHZ. 2017-03-26T03:18:48.13 0.1 undecidable manual P 280 7.6812 158 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.EHE. ML:1.6 0.00008865 0.3 AML other m 2017-03-26T03:19:03.75
IV.APRC.EHN. ML:1.7 0.0001095 0.94 AML other m 2017-03-26T03:19:04.03
IV.GATE.HNN. ML:1.8 0.00048150000000000005 1.68 AML other m 2017-03-26T03:18:53.98
IV.GATE.HHN. ML:1.8 0.000496 1.68 AML other m 2017-03-26T03:18:54.14
IV.GATE.HHE. ML:1.9 0.0005994999999999999 0.32 AML other m 2017-03-26T03:18:53.93
IV.GATE.HNE. ML:1.9 0.000597 0.32 AML other m 2017-03-26T03:18:53.78
IV.MELA.HHE. ML:1.8 0.0003165 0.4 AML other m 2017-03-26T03:18:54.39
IV.MELA.HHN. ML:1.7 0.00020549999999999998 0.54 AML other m 2017-03-26T03:18:54.32
IV.MSAG.HHN. ML:2.0 0.000152 0.84 AML other m 2017-03-26T03:19:11.21
IV.MSAG.HHE. ML:1.9 0.00009815 0.44 AML other m 2017-03-26T03:19:12.53
IV.SACR.HHE. ML:1.2 0.00007095 1.26 AML other m 2017-03-26T03:18:55.72
IV.SACR.HHN. ML:1.1 0.000051500000000000005 0.42 AML other m 2017-03-26T03:18:58.72
IV.SGRT.HHN. ML:1.6 0.00007159999999999999 0.18 AML other m 2017-03-26T03:19:08.13
IV.SGRT.HHE. ML:1.8 0.00009434999999999999 0.7 AML other m 2017-03-26T03:19:08.15
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