Earthquake with magnitude of ML 1.3 on date 18-09-2018 and time 04:41:18 (Italy) in region 3 km S Montecilfone (CB)

A magnitude ML 1.3 earthquake occured in region: 3 km S Montecilfone (CB), on

  • 18-09-2018 02:41:18 (UTC)
  • 18-09-2018 04:41:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.87, 14.84 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
Montecilfone CB 4 1348 1348
Palata CB 5 1726 3074
Guglionesi CB 7 5321 8395
Tavenna CB 8 718 9113
Acquaviva Collecroce CB 8 672 9785
Guardialfiera CB 9 1065 10850
Larino CB 10 6793 17643
Montenero di Bisaccia CB 11 6675 24318
San Felice del Molise CB 12 634 24952
Castelmauro CB 12 1505 26457
Mafalda CB 13 1211 27668
San Giacomo degli Schiavoni CB 14 1406 29074
San Martino in Pensilis CB 14 4793 33867
Montorio nei Frentani CB 15 437 34304
Casacalenda CB 15 2135 36439
Portocannone CB 15 2551 38990
Lupara CB 15 505 39495
Ururi CB 15 2693 42188
Petacciato CB 16 3819 46007
Civitacampomarano CB 16 417 46424
Montemitro CB 16 395 46819
Montefalcone nel Sannio CB 17 1556 48375
Provvidenti CB 17 119 48494
Castelbottaccio CB 17 312 48806
Montelongo CB 17 365 49171
Campomarino CB 18 7712 56883
Morrone del Sannio CB 18 587 57470
Tufillo CH 19 406 57876
Dogliola CH 19 359 58235
Fresagrandinaria CH 19 961 59196
Rotello CB 19 1212 60408
Termoli CB 19 33739 94147
Lentella CH 20 689 94836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km W of San Severo (53905 inhabitants)
74 Km NW of Foggia (151991 inhabitants)
77 Km SE of Chieti (51815 inhabitants)
83 Km N of Benevento (60091 inhabitants)
84 Km SE of Pescara (121014 inhabitants)
92 Km SE of Montesilvano (53738 inhabitants)
93 Km W of Manfredonia (57279 inhabitants)
98 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 1.3 2018-09-18
02:41:18
41.87 14.84 16 2018-09-18
02:47:06
Sala Sismica INGV-Roma 61053211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-18 02:41:18 ± 0.32
Latitude 41.87 ± 0.02
Longitude 14.84 ± 0.01
Depth (km) 16 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61053211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1683
Semi-minor axis of confidence ellipse (meter) 573
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 1680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.1313
Epicentral distance of station farthest from the epicenter (degree) 0.71136
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 61053211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-18 02:47:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2018-09-18T02:41:31.49 0.1 undecidable manual P 282 0.7114 94 -0.87 71
IV.APRC.HHZ. 2018-09-18T02:41:30.27 0.1 undecidable manual P 102 0.5333 96 0.94 73
IV.TRIV.HHZ. 2018-09-18T02:41:29.14 0.3 undecidable manual S 244 0.2419 107 0.57 68
IV.MELA.HHZ. 2018-09-18T02:41:29.43 0.3 undecidable manual S 128 0.2689 104 0.11 75
IV.FRES.HHZ. 2018-09-18T02:41:26.39 0.3 undecidable manual S 308 0.1646 119 -0.05 77
YD.T1413.EHZ. 2018-09-18T02:41:25.18 0.1 undecidable manual S 99 0.1313 127 -0.42 96
IV.TRIV.HHZ. 2018-09-18T02:41:24.35 0.3 undecidable manual P 244 0.2419 107 -0.06 75
IV.MELA.HHZ. 2018-09-18T02:41:24.63 0.1 negative manual P 128 0.2689 104 -0.22 97
IV.FRES.HHZ. 2018-09-18T02:41:23.41 0.1 undecidable manual P 308 0.1646 119 0.22 99
IV.CIGN.HHZ. 2018-09-18T02:41:23.84 0.1 undecidable manual P 168 0.2221 109 -0.25 97
YD.T1413.EHZ. 2018-09-18T02:41:22.90 0.1 undecidable manual P 99 0.1313 127 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
YD.T1413.EHN. ML:1.5 0.000267 0.44 AML other m 2018-09-18T02:41:26.83
YD.T1413.EHE. ML:1.4 0.0001985 0.6 AML other m 2018-09-18T02:41:26.86
IV.FRES.HHE. ML:1.2 0.000111 0.58 AML other m 2018-09-18T02:41:27.68
IV.FRES.HHN. ML:1.4 0.000149 1.02 AML other m 2018-09-18T02:41:27.23
IV.MELA.HHE. ML:1.4 0.0001275 1.08 AML other m 2018-09-18T02:41:30.93
IV.MELA.HHN. ML:1.4 9.765E-5 0.08 AML other m 2018-09-18T02:41:30.69
IV.TRIV.HHE. ML:0.8 3.125E-5 0.64 AML other m 2018-09-18T02:41:33.57
IV.TRIV.HHN. ML:0.7 2.485E-5 0.5 AML other m 2018-09-18T02:41:36.43
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