Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 31-03-2020 and time 19:17:07 (Italy) in region 6 km SW Guglionesi (CB)

A magnitude ML 1.4 earthquake occured in region: 6 km SW Guglionesi (CB), on

  • 31-03-2020 17:17:07 (UTC)
  • 31-03-2020 19:17:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8620, 14.8930 at 18 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
Guglionesi CB 6 5321 5321
Montecilfone CB 6 1348 6669
Larino CB 7 6793 13462
Palata CB 9 1726 15188
San Martino in Pensilis CB 10 4793 19981
Guardialfiera CB 11 1065 21046
Ururi CB 11 2693 23739
Portocannone CB 12 2551 26290
Tavenna CB 12 718 27008
Montorio nei Frentani CB 12 437 27445
Acquaviva Collecroce CB 12 672 28117
San Giacomo degli Schiavoni CB 12 1406 29523
Casacalenda CB 14 2135 31658
Montenero di Bisaccia CB 14 6675 38333
Montelongo CB 15 365 38698
Castelmauro CB 16 1505 40203
Rotello CB 16 1212 41415
Campomarino CB 16 7712 49127
San Felice del Molise CB 16 634 49761
Provvidenti CB 17 119 49880
Petacciato CB 17 3819 53699
Lupara CB 17 505 54204
Mafalda CB 17 1211 55415
Termoli CB 18 33739 89154
Bonefro CB 18 1384 90538
Santa Croce di Magliano CB 19 4435 94973
Civitacampomarano CB 19 417 95390
Morrone del Sannio CB 19 587 95977
Castelbottaccio CB 20 312 96289

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km W of San Severo (53905 inhabitants)
70 Km NW of Foggia (151991 inhabitants)
81 Km SE of Chieti (51815 inhabitants)
82 Km N of Benevento (60091 inhabitants)
87 Km SE of Pescara (121014 inhabitants)
89 Km W of Manfredonia (57279 inhabitants)
95 Km SE of Montesilvano (53738 inhabitants)
99 Km NE of Caserta (76326 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 1.4 2020-03-31
17:17:07		 41.8623 14.8932 18 2020-07-18
21:08:33		 Bollettino Sismico Italiano INGV 78315401
Reviewed
Rev100 		ML 1.3 2020-03-31
17:17:07		 41.8613 14.8863 18 2020-03-31
17:32:15		 Sala Sismica INGV-Roma 77731821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-31 17:17:07 ± 0.14
Latitude 41.8623 ± 0.0090
Longitude 14.8932 ± 0.0097
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78315401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 945
Semi-minor axis of confidence ellipse (meter) 607
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.90652
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 78315401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-02 23:55:29

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 77731821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-31 17:32:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHE. 2020-03-31T17:17:25.36 1.0 undecidable manual P 294 100.6215 95 0.63 18
IV.INTR.HHZ. 2020-03-31T17:17:21.60 0.1 undecidable manual P 282 83.25 96 -0.46 83
IV.BSSO.HHZ. 2020-03-31T17:17:21.74 0.3 undecidable manual S 215 42.9237 103 -0.16 70
IV.SGRT.HHZ. 2020-03-31T17:17:20.46 0.6 undecidable manual P 99 71.373 97 0.22 44
IV.TRIV.HHZ. 2020-03-31T17:17:19.67 0.6 undecidable manual S 250 30.2475 110 1.02 36
IV.RNI2.HHZ. 2020-03-31T17:17:18.91 0.3 undecidable manual P 254 63.7917 98 -0.17 68
OT.OT04.EHZ. 2020-03-31T17:17:18.12 0.6 undecidable manual P 105 58.9965 99 -0.24 45
OT.OT06.EHZ. 2020-03-31T17:17:18.45 0.3 undecidable manual P 108 61.2942 98 -0.24 67
IV.MIDA.HNZ. 2020-03-31T17:17:17.76 0.6 undecidable manual P 245 58.2972 99 -0.48 43
IV.MELA.HHZ. 2020-03-31T17:17:17.79 0.3 undecidable manual S 132 25.9518 115 0.19 73
IV.APRC.HHZ. 2020-03-31T17:17:17.55 0.3 undecidable manual P 102 55.0005 99 -0.19 68
IV.GATE.HNZ. 2020-03-31T17:17:16.10 0.3 undecidable manual P 178 38.7279 105 0.81 59
IV.CIGN.HHZ. 2020-03-31T17:17:16.63 0.6 undecidable manual S 178 23.1546 118 -0.28 47
IV.BSSO.HHZ. 2020-03-31T17:17:16.11 0.3 undecidable manual P 215 42.9237 103 0.19 70
IV.TRIV.HHZ. 2020-03-31T17:17:14.29 0.3 undecidable manual P 250 30.2475 110 0.24 71
IT.GLNS.HNZ. 2020-03-31T17:17:14.27 0.6 undecidable manual S 21 5.8941 159 0.51 45
IT.LRNO.HNZ. 2020-03-31T17:17:13.41 0.6 undecidable manual S 160 6.5934 157 -0.42 47
IT.MCLF.HNZ. 2020-03-31T17:17:13.58 0.6 undecidable manual S 313 6.2937 157 -0.23 50
IV.CIGN.HHZ. 2020-03-31T17:17:13.06 0.3 undecidable manual P 178 23.1546 118 0.02 75
IV.MELA.HHZ. 2020-03-31T17:17:13.47 0.1 undecidable manual P 132 25.9518 115 0.03 100
IT.PLTA.HNZ. 2020-03-31T17:17:11.21 0.1 undecidable manual P 287 8.9799 149 -0.22 99
IT.GLNS.HNZ. 2020-03-31T17:17:11.51 0.1 undecidable manual P 21 5.8941 159 0.29 97
IT.MCLF.HNZ. 2020-03-31T17:17:11.20 0.6 undecidable manual P 313 6.2937 157 -0.05 52
IT.LRNO.HNZ. 2020-03-31T17:17:10.93 0.3 undecidable manual P 160 6.5934 157 -0.34 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CIGN.HHE. ML:1.2 0.000078919805 0.1504 AML other m 2020-03-31T17:17:16.15
IV.CIGN.HHN. ML:1.2 0.00008450912 0.2144 AML other m 2020-03-31T17:17:16.26
IV.MELA.HHN. ML:1.6 0.00019638700000000002 0.3072 AML other m 2020-03-31T17:17:17.99
IV.TRIV.HHN. ML:1.3 0.00008186457 0.9888 AML other m 2020-03-31T17:17:17.50
IV.MELA.HHE. ML:1.7 0.00023438835 1.5008 AML other m 2020-03-31T17:17:18.84
IV.TRIV.HHE. ML:1.3 0.00008770043499999999 0.9312 AML other m 2020-03-31T17:17:18.68
IV.BSSO.HHE. ML:1.0 0.0000314876 0.1184 AML other m 2020-03-31T17:17:21.44
IV.BSSO.HHN. ML:1.1 0.000034831719999999995 1.8944 AML other m 2020-03-31T17:17:21.03
IV.SGRT.HHN. ML:1.7 0.000081011265 1.6896 AML other m 2020-03-31T17:17:32.24
IV.INTR.HHE. ML:1.5 0.00003883527 3.52 AML other m 2020-03-31T17:17:34.18
IV.INTR.HHN. ML:1.7 0.00007191554 1.7792 AML other m 2020-03-31T17:17:33.02
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