INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.9 on date 12-02-2019 and time 09:23:44 (Italy) in region 5 km NE Guardialfiera (CB)

A magnitude ML 1.9 earthquake occured in region: 5 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) 41.84, 14.83 at 16 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

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 5 1065 1065
Palata CB 6 1726 2791
Montecilfone CB 7 1348 4139
Acquaviva Collecroce CB 8 672 4811
Larino CB 8 6793 11604
Tavenna CB 9 718 12322
Castelmauro CB 10 1505 13827
Guglionesi CB 11 5321 19148
Casacalenda CB 11 2135 21283
Lupara CB 12 505 21788
San Felice del Molise CB 12 634 22422
Montorio nei Frentani CB 12 437 22859
Civitacampomarano CB 13 417 23276
Provvidenti CB 14 119 23395
Montenero di Bisaccia CB 14 6675 30070
Castelbottaccio CB 14 312 30382
Morrone del Sannio CB 15 587 30969
Mafalda CB 15 1211 32180
Montelongo CB 15 365 32545
San Martino in Pensilis CB 15 4793 37338
Ururi CB 15 2693 40031
Montefalcone nel Sannio CB 16 1556 41587
Montemitro CB 16 395 41982
Lucito CB 17 696 42678
San Giacomo degli Schiavoni CB 17 1406 44084
Ripabottoni CB 17 514 44598
Portocannone CB 17 2551 47149
Castellino del Biferno CB 17 545 47694
Bonefro CB 18 1384 49078
Rotello CB 18 1212 50290
Tufillo CH 19 406 50696
Roccavivara CB 19 815 51511
Petacciato CB 19 3819 55330
Santa Croce di Magliano CB 20 4435 59765
Dogliola CH 20 359 60124
Petrella Tifernina CB 20 1170 61294

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km W of San Severo (53905 inhabitants)
73 Km NW of Foggia (151991 inhabitants)
79 Km SE of Chieti (51815 inhabitants)
79 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)
95 Km NE of Caserta (76326 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.9 2019-02-12
08:23:44
41.84 14.83 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 ± 0.11
Latitude 41.84 ± 0.01
Longitude 14.83 ± 0.01
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65429271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 747
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.81479
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitude information

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 Takeoff_angle Residual Weight
IX.SFL3.HNZ.01 2019-02-12T08:24:25.09 3.0 undecidable manual S -0.13 0
IV.MSAG.HHZ. 2019-02-12T08:23:59.62 1.0 undecidable manual P 99 0.8148 94 0.1 21
IV.VAGA.HHZ. 2019-02-12T08:23:58.83 3.0 positive manual P 0.38 0
IV.APRC.HHZ. 2019-02-12T08:23:55.10 0.3 undecidable manual P 99 0.5378 97 0.3 65
IV.MELA.HHZ. 2019-02-12T08:23:54.44 0.3 undecidable manual S 121 0.259 108 -0.07 73
IV.SACR.HHE. 2019-02-12T08:23:53.44 0.3 undecidable manual P 192 0.4533 98 0.07 69
IT.LRNO.HNZ. 2019-02-12T08:23:50.18 0.6 undecidable manual S 117 0.0746 148 0.12 50
IT.GLNS.HNZ. 2019-02-12T08:23:50.68 0.3 undecidable manual S 43 0.0962 140 0.26 73
IV.MELA.HHZ. 2019-02-12T08:23:49.84 0.3 negative manual P 121 0.259 108 -0.29 70
IT.GDFR.HNZ. 2019-02-12T08:23:49.82 0.3 undecidable manual S 213 0.045 160 0.16 75
IV.CIGN.HHZ. 2019-02-12T08:23:49.40 1.0 undecidable manual P 163 0.1952 116 0.29 23
IT.PLTA.HNZ. 2019-02-12T08:23:49.71 0.6 undecidable manual S 326 0.0549 156 -0.06 50
IV.FRES.HHE. 2019-02-12T08:23:49.11 0.3 undecidable manual P 318 0.179 119 0.25 70
IT.MCLF.HNZ. 2019-02-12T08:23:47.35 0.1 undecidable manual P 5 0.0603 154 -0.09 100
IT.GLNS.HNZ. 2019-02-12T08:23:47.69 0.3 positive manual P 43 0.0962 140 -0.08 75
IT.GDFR.HNZ. 2019-02-12T08:23:47.20 0.1 negative manual P 213 0.045 160 -0.13 100
IT.LRNO.HNZ. 2019-02-12T08:23:47.37 0.1 undecidable manual P 117 0.0746 148 -0.19 98
IT.PLTA.HNZ. 2019-02-12T08:23:47.22 0.3 positive manual P 326 0.0549 156 -0.17 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MELA.HHE. ML:1.9 0.00036952075 0.2944 AML other m 2019-02-12T08:23:54.53
IV.MELA.HHN. ML:1.9 0.00035600555 0.1216 AML other m 2019-02-12T08:23:55.60
IV.MELA.HNE. ML:1.9 0.0003651741 0.2944 AML other m 2019-02-12T08:23:54.68
IV.MELA.HNN. ML:1.9 0.0003514851 0.1152 AML other m 2019-02-12T08:23:55.60
IV.APRC.HHE. ML:2 0.0001974191 0.3776 AML other m 2019-02-12T08:24:06.53
IV.APRC.HHN. ML:2.1 0.00025890085 0.2816 AML other m 2019-02-12T08:24:06.83
IV.VAGA.HHE. ML:1.6 7.3288215E-5 0.1984 AML other m 2019-02-12T08:24:11.75
IV.VAGA.HHN. ML:1.7 8.71004E-5 0.2624 AML other m 2019-02-12T08:24:16.42
IV.VAGA.HNE. ML:1.6 7.1495725E-5 0.1984 AML other m 2019-02-12T08:24:11.75
IV.VAGA.HNN. ML:1.7 8.6653955E-5 0.2624 AML other m 2019-02-12T08:24:16.55
IV.MSAG.HHE. ML:1.7 6.174609E-5 0.32 AML other m 2019-02-12T08:24:15.81
IV.MSAG.HHN. ML:2 0.000101539375 0.2624 AML other m 2019-02-12T08:24:16.97
IV.MSAG.HNE. ML:2.2 0.0001628106 0.3008 AML other m 2019-02-12T08:24:15.81
IV.MSAG.HNN. ML:2.3 0.00024408555 0.2624 AML other m 2019-02-12T08:24:17.11
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download