Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 12-02-2019 and time 08:23:44 (UTC) in region 6 km NE Guardialfiera (CB)

A magnitude ML 1.8 earthquake occured in region: 6 km NE Guardialfiera (CB), on

  • 12-02-2019 08:23:44 (UTC)
  • 12-02-2019 09:23:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8460, 14.8430 at 14 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
Guardialfiera CB 6 1065 1065
Montecilfone CB 6 1348 2413
Palata CB 7 1726 4139
Larino CB 8 6793 10932
Acquaviva Collecroce CB 8 672 11604
Guglionesi CB 9 5321 16925
Tavenna CB 10 718 17643
Castelmauro CB 11 1505 19148
Casacalenda CB 12 2135 21283
Montorio nei Frentani CB 12 437 21720
San Felice del Molise CB 13 634 22354
Lupara CB 13 505 22859
Montenero di Bisaccia CB 13 6675 29534
San Martino in Pensilis CB 14 4793 34327
Provvidenti CB 14 119 34446
Civitacampomarano CB 15 417 34863
Ururi CB 15 2693 37556
Montelongo CB 15 365 37921
Mafalda CB 15 1211 39132
Castelbottaccio CB 15 312 39444
Morrone del Sannio CB 16 587 40031
San Giacomo degli Schiavoni CB 16 1406 41437
Portocannone CB 16 2551 43988
Montemitro CB 17 395 44383
Montefalcone nel Sannio CB 17 1556 45939
Rotello CB 17 1212 47151
Bonefro CB 18 1384 48535
Ripabottoni CB 18 514 49049
Lucito CB 18 696 49745
Castellino del Biferno CB 18 545 50290
Petacciato CB 19 3819 54109
Santa Croce di Magliano CB 19 4435 58544
Tufillo CH 20 406 58950

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of San Severo (53905 inhabitants)
72 Km NW of Foggia (151991 inhabitants)
79 Km SE of Chieti (51815 inhabitants)
80 Km N of Benevento (60091 inhabitants)
86 Km SE of Pescara (121014 inhabitants)
93 Km W of Manfredonia (57279 inhabitants)
94 Km SE of Montesilvano (53738 inhabitants)
96 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 1.8 2019-02-12
08:23:44		 41.8463 14.843 14 2019-08-22
08:24:50		 Bollettino Sismico Italiano INGV 65533411
Reviewed
Rev100 		ML 1.9 2019-02-12
08:23:44		 41.8412 14.8307 17 2019-02-12
08:35:03		 Sala Sismica INGV-Roma 65429271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-12 08:23:44 ± 0.08
Latitude 41.8463 ± 0.0045
Longitude 14.8430 ± 0.0048
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65533411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.80579
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:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 65533411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-20 08:17:41

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 65429271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-12 08:35:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSAG.HHZ. 2019-02-12T08:24:11.17 0.6 undecidable manual S 99 89.4438 92 0.38 40
IV.INTR.HHE. 2019-02-12T08:24:08.27 0.6 undecidable manual S 284 79.5648 93 0.12 43
IV.RNI2.HNE. 2019-02-12T08:24:03.12 0.3 undecidable manual S 255 59.2962 94 0.38 64
IV.LPEL.HHE. 2019-02-12T08:24:03.43 0.6 undecidable manual S 292 58.7967 94 0.82 36
IV.APRC.HHZ. 2019-02-12T08:24:02.71 0.3 undecidable manual S 99 58.6968 94 0.12 67
IV.SACR.HHE. 2019-02-12T08:24:00.88 0.6 undecidable manual S 193 51.1155 95 0.33 44
IV.MSAG.HHZ. 2019-02-12T08:24:00.13 0.1 undecidable manual P 99 89.4438 92 0.49 78
IV.CERA.HNN. 2019-02-12T08:23:57.56 0.6 undecidable manual P 248 73.6707 93 0.36 42
IV.INTR.HHE. 2019-02-12T08:23:57.35 0.1 undecidable manual P 284 79.5648 93 -0.77 72
IV.VAGA.HHZ. 2019-02-12T08:23:56.93 0.6 undecidable manual P 227 69.4749 93 0.36 42
IV.APRC.HHZ. 2019-02-12T08:23:55.06 0.1 undecidable manual P 99 58.6968 94 0.15 89
IV.SGG.HHN. 2019-02-12T08:23:55.82 1.0 undecidable manual P 217 63.8916 94 0.12 22
IV.MELA.HHZ. 2019-02-12T08:23:54.28 0.3 undecidable manual S 123 28.1496 102 -0.22 70
IV.RNI2.HNE. 2019-02-12T08:23:54.96 0.1 undecidable manual P 255 59.2962 94 -0.04 92
IV.MOCO.HNE. 2019-02-12T08:23:54.51 1.0 undecidable manual P 154 58.9965 94 -0.44 21
IV.LPEL.HHE. 2019-02-12T08:23:54.63 0.3 undecidable manual P 292 58.7967 94 -0.29 65
IV.SACR.HHE. 2019-02-12T08:23:53.42 0.1 positive manual P 193 51.1155 95 -0.32 88
IV.CIGN.HHZ. 2019-02-12T08:23:53.32 0.6 undecidable manual S 166 21.9669 108 0.44 45
IV.FRES.HHE. 2019-02-12T08:23:52.54 0.6 undecidable manual S 315 20.1687 111 0.11 48
IV.GATE.HNN. 2019-02-12T08:23:51.79 1.0 undecidable manual P 171 37.3293 98 0.15 23
IT.GLNS.HNZ. 2019-02-12T08:23:50.57 0.3 undecidable manual S 40 9.5793 138 0.49 68
IT.LRNO.HNZ. 2019-02-12T08:23:49.82 0.6 undecidable manual S 125 7.7811 145 0.05 50
IV.CIGN.HHZ. 2019-02-12T08:23:49.37 0.3 undecidable manual P 166 21.9669 108 0.06 73
IT.GDFR.HNZ. 2019-02-12T08:23:49.61 0.3 undecidable manual S 219 6.0939 152 0.07 76
IV.FRES.HHE. 2019-02-12T08:23:49.00 0.1 undecidable manual P 315 20.1687 111 -0.04 98
IT.PLTA.HNZ. 2019-02-12T08:23:49.52 0.3 undecidable manual S 315 6.2937 151 -0.05 74
IV.MELA.HHZ. 2019-02-12T08:23:49.80 0.1 undecidable manual P 123 28.1496 102 -0.44 89
IT.MCLF.HNZ. 2019-02-12T08:23:49.56 0.6 undecidable manual S 356 6.1938 151 0.01 50
IT.PLTA.HNZ. 2019-02-12T08:23:47.19 0.1 undecidable manual P 315 6.2937 151 -0.2 97
IT.MCLF.HNZ. 2019-02-12T08:23:47.22 0.1 undecidable manual P 356 6.1938 151 -0.16 98
IT.LRNO.HNZ. 2019-02-12T08:23:47.36 0.1 undecidable manual P 125 7.7811 145 -0.15 98
IT.GDFR.HNZ. 2019-02-12T08:23:47.16 0.1 undecidable manual P 219 6.0939 152 -0.22 96
IT.GLNS.HNZ. 2019-02-12T08:23:47.64 0.1 undecidable manual P 40 9.5793 138 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CIGN.HHE. ML:1.2 0.00009510528 0.3008 AML other m 2019-02-12T08:23:53.85
IV.MELA.HNE. ML:1.9 0.0003651741 0.2944 AML other m 2019-02-12T08:23:54.68
IV.MELA.HHE. ML:1.9 0.00036952075 0.2944 AML other m 2019-02-12T08:23:54.53
IV.CIGN.HHN. ML:1.2 0.00010589489000000001 0.2752 AML other m 2019-02-12T08:23:55.02
IV.MELA.HHN. ML:1.9 0.00035600555000000003 0.1216 AML other m 2019-02-12T08:23:55.60
IV.MELA.HNN. ML:1.9 0.0003514851 0.1152 AML other m 2019-02-12T08:23:55.60
IV.APRC.HNE. ML:2.0 0.00020048279999999998 0.1728 AML other m 2019-02-12T08:24:03.76
IV.APRC.HHE. ML:2.0 0.0001974191 0.3776 AML other m 2019-02-12T08:24:06.53
IV.APRC.HHN. ML:2.1 0.00025890084999999997 0.2816 AML other m 2019-02-12T08:24:06.83
IV.VAGA.HNE. ML:1.6 0.000071495725 0.1984 AML other m 2019-02-12T08:24:11.75
IV.VAGA.HHE. ML:1.7 0.000073288215 0.1984 AML other m 2019-02-12T08:24:11.75
IV.MSAG.HNE. ML:2.2 0.00016281060000000004 0.3008 AML other m 2019-02-12T08:24:15.81
IV.MSAG.HHE. ML:1.7 0.00006174609 0.32 AML other m 2019-02-12T08:24:15.81
IV.VAGA.HHN. ML:1.7 0.00008710039999999999 0.2624 AML other m 2019-02-12T08:24:16.42
IV.VAGA.HNN. ML:1.7 0.000086653955 0.2624 AML other m 2019-02-12T08:24:16.55
IV.MSAG.HHN. ML:1.9 0.000101539375 1.7376 AML other m 2019-02-12T08:24:16.97
IV.MSAG.HNN. ML:2.3 0.00024408554999999998 1.7376 AML other m 2019-02-12T08:24:16.11
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