INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.4 on date 10-09-2018 and time 15:23:00 (Italy) in region 6 km NE Guardialfiera (CB)

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

  • 10-09-2018 13:23:00 (UTC)
  • 10-09-2018 15:23:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.84, 14.83 at 13 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 6 1065 1065
Palata CB 6 1726 2791
Montecilfone CB 6 1348 4139
Acquaviva Collecroce CB 8 672 4811
Larino CB 8 6793 11604
Tavenna CB 9 718 12322
Guglionesi CB 10 5321 17643
Castelmauro CB 10 1505 19148
Casacalenda CB 12 2135 21283
San Felice del Molise CB 12 634 21917
Lupara CB 12 505 22422
Montorio nei Frentani CB 13 437 22859
Montenero di Bisaccia CB 13 6675 29534
Civitacampomarano CB 14 417 29951
Provvidenti CB 14 119 30070
Castelbottaccio CB 15 312 30382
Mafalda CB 15 1211 31593
San Martino in Pensilis CB 15 4793 36386
Ururi CB 15 2693 39079
Morrone del Sannio CB 15 587 39666
Montelongo CB 15 365 40031
Montefalcone nel Sannio CB 16 1556 41587
Montemitro CB 16 395 41982
San Giacomo degli Schiavoni CB 16 1406 43388
Portocannone CB 17 2551 45939
Lucito CB 17 696 46635
Ripabottoni CB 17 514 47149
Bonefro CB 18 1384 48533
Rotello CB 18 1212 49745
Castellino del Biferno CB 18 545 50290
Tufillo CH 19 406 50696
Petacciato CB 19 3819 54515
Roccavivara CB 19 815 55330
Dogliola CH 20 359 55689
Santa Croce di Magliano CB 20 4435 60124

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)
80 Km N of Benevento (60091 inhabitants)
86 Km SE of Pescara (121014 inhabitants)
93 Km W of Manfredonia (57279 inhabitants)
93 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 1.4 2018-09-10
13:23:00
41.85 14.83 13 2018-09-10
13:29:29
Sala Sismica INGV-Roma 60787341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-10 13:23:00 ± 0.21
Latitude 41.85 ± 0.01
Longitude 14.83 ± 0.01
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 60787341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1102
Semi-minor axis of confidence ellipse (meter) 361
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.259
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 60787341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-10 13:29:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2018-09-10T13:23:23.12 3.0 undecidable manual S -0.39 0
IV.OVO.HHZ. 2018-09-10T13:23:22.17 3.0 undecidable manual P 0.4 0
IV.MELA.HHZ. 2018-09-10T13:23:11.39 0.6 undecidable manual S 122 0.259 97 0.27 46
IV.TRIV.HHZ. 2018-09-10T13:23:09.51 0.6 undecidable manual S 250 0.2248 99 -0.62 44
IV.FRES.HHZ. 2018-09-10T13:23:08.47 0.6 undecidable manual S 316 0.1772 104 -0.27 46
YD.T1413.HNZ. 2018-09-10T13:23:07.09 0.6 undecidable manual S 87 0.1367 114 -0.51 43
IV.MELA.HHZ. 2018-09-10T13:23:06.86 0.1 undecidable manual P 122 0.259 97 0.03 97
YD.T1412.EHZ. 2018-09-10T13:23:06.37 0.6 undecidable manual S 219 0.0782 136 0.19 48
IV.TRIV.HHZ. 2018-09-10T13:23:06.61 1.0 negative manual P 250 0.2248 99 0.35 23
IV.FRES.HHZ. 2018-09-10T13:23:05.68 0.1 undecidable manual P 316 0.1772 104 0.23 95
YD.T1413.HNZ. 2018-09-10T13:23:04.85 0.1 undecidable manual P 87 0.1367 114 0.06 100
YD.T1412.EHZ. 2018-09-10T13:23:03.96 0.6 negative manual P 219 0.0782 136 -0.01 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MELA.HHN. ML:1.4 0.000136 0.3 AML other m 2018-09-10T13:23:12.01
YD.T1412.EHN. ML:1.5 0.0003395 0.26 AML other m 2018-09-10T13:23:06.43
IV.MELA.HHE. ML:1.4 0.0001105 1.02 AML other m 2018-09-10T13:23:12.23
YD.T1412.HNN. ML:1.5 0.00033938965 0.1408 AML other m 2018-09-10T13:23:06.55
YD.T1412.HNE. ML:1.7 0.00055650365 0.1472 AML other m 2018-09-10T13:23:06.84
YD.T1412.EHE. ML:1.7 0.000607 0.86 AML other m 2018-09-10T13:23:06.85
IV.FRES.HHE. ML:1.1 8.5086865E-5 0.1408 AML other m 2018-09-10T13:23:09.49
IV.FRES.HHN. ML:1.1 7.9379875E-5 0.0768 AML other m 2018-09-10T13:23:09.33
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