INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.8 on date 19-04-2017 and time 03:31:47 (Italy) in region 1 km SE Ripabottoni (CB)

A magnitude ML 1.8 earthquake occured in region: 1 km SE Ripabottoni (CB), on

  • 19-04-2017 01:31:47 (UTC)
  • 19-04-2017 03:31:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.68, 14.81 at 21 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
Ripabottoni CB 1 514 514
Morrone del Sannio CB 4 587 1101
Provvidenti CB 4 119 1220
Campolieto CB 6 839 2059
Castellino del Biferno CB 7 545 2604
Casacalenda CB 7 2135 4739
Monacilioni CB 8 523 5262
Sant'Elia a Pianisi CB 9 1818 7080
Petrella Tifernina CB 10 1170 8250
Bonefro CB 11 1384 9634
Lupara CB 11 505 10139
Matrice CB 11 1115 11254
Lucito CB 12 696 11950
San Giovanni in Galdo CB 12 580 12530
Castelbottaccio CB 12 312 12842
Montagano CB 12 1086 13928
Pietracatella CB 12 1375 15303
Toro CB 13 1391 16694
San Giuliano di Puglia CB 13 1042 17736
Macchia Valfortore CB 13 576 18312
Montelongo CB 13 365 18677
Montorio nei Frentani CB 13 437 19114
Guardialfiera CB 14 1065 20179
Colletorto CB 14 1938 22117
Ripalimosani CB 15 3114 25231
Campodipietra CB 15 2570 27801
Civitacampomarano CB 15 417 28218
Santa Croce di Magliano CB 15 4435 32653
Larino CB 16 6793 39446
Limosano CB 16 768 40214
Carlantino FG 17 980 41194
Sant'Angelo Limosano CB 17 352 41546
Rotello CB 18 1212 42758
Jelsi CB 18 1781 44539
Castelmauro CB 18 1505 46044
Campobasso CB 19 49431 95475
San Biase CB 19 189 95664
Celenza Valfortore FG 19 1598 97262
Gildone CB 20 809 98071

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km W of San Severo (53905 inhabitants)
61 Km N of Benevento (60091 inhabitants)
66 Km W of Foggia (151991 inhabitants)
78 Km NE of Caserta (76326 inhabitants)
85 Km N of Avellino (54857 inhabitants)
90 Km NE of Acerra (59573 inhabitants)
92 Km SE of Chieti (51815 inhabitants)
92 Km W of Manfredonia (57279 inhabitants)
94 Km NE of Aversa (53047 inhabitants)
94 Km NE of Afragola (65057 inhabitants)
97 Km NE of Casoria (77642 inhabitants)
98 Km NE of Giugliano in Campania (122974 inhabitants)
100 Km SE of Pescara (121014 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 Date and Time (UTC) Latitude Longitude Magnitude Depth (km) Published time (UTC) Author Location ID
Rev 100 2017-04-19
01:31:47
41.68 14.81 ML 1.8 21 2017-04-19
01:48:30
Sala Sismica INGV-Roma 44074571
Best location and best magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-19 01:31:47 ± 0.08
Latitude 41.68 ± 0.01
Longitude 14.81 ± 0.01
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 44074571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
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) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.75093
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 44074571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-19 01:48:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2017-04-19T01:32:01.11 0.1 undecidable manual P 296 0.7509 98 -0.54 80
IV.SGRT.HHZ. 2017-04-19T01:32:00.71 0.1 undecidable manual P 84 0.6997 99 -0.06 91
IV.LPEL.HHZ. 2017-04-19T01:31:58.78 0.1 undecidable manual P 308 0.5927 100 -0.19 90
IV.APRC.HNN. 2017-04-19T01:31:58.27 0.6 undecidable manual P 82 0.5513 101 0 48
IV.VITU.HHN. 2017-04-19T01:31:57.43 0.1 undecidable manual P 195 0.5171 102 -0.27 92
IV.RNI2.HHE. 2017-04-19T01:31:57.83 0.1 undecidable manual P 273 0.4919 103 0.54 87
IV.SGG.HHZ. 2017-04-19T01:31:56.06 0.1 undecidable manual P 228 0.438 105 -0.33 92
IV.PSB1.HHZ. 2017-04-19T01:31:56.54 0.3 undecidable manual P 180 0.4587 104 -0.19 71
IV.MIDA.HHE. 2017-04-19T01:31:55.99 0.1 undecidable manual P 265 0.4182 106 -0.07 97
IV.CAFE.HNZ. 2017-04-19T01:32:01.08 0.1 undecidable manual P 154 0.7276 98 -0.17 90
IV.SGTA.HNZ. 2017-04-19T01:32:00.32 0.1 undecidable manual P 143 0.6871 99 -0.24 89
IV.FRES.HHN. 2017-04-19T01:31:54.39 0.1 undecidable manual P 340 0.3094 113 0.08 100
IV.SACR.HHZ. 2017-04-19T01:31:54.12 0.1 undecidable manual P 196 0.2959 114 0.03 100
IV.MRB1.HNN. 2017-04-19T01:31:58.51 0.1 undecidable manual P 168 0.572 101 -0.11 94
IV.MELA.HNE. 2017-04-19T01:31:53.08 0.1 undecidable manual P 84 0.2365 121 -0.11 99
IV.VAGA.HHZ. 2017-04-19T01:31:57.60 0.1 undecidable manual P 238 0.5072 103 0.06 95
IV.MOCO.HHE. 2017-04-19T01:31:56.40 0.1 undecidable manual P 140 0.4056 106 0.54 87
IV.BSSO.HHZ. 2017-04-19T01:31:53.14 0.1 undecidable manual P 230 0.2122 124 0.31 96
IV.GATE.HHZ. 2017-04-19T01:31:53.07 0.1 undecidable manual P 156 0.1844 129 0.62 88
IV.CIGN.HHZ. 2017-04-19T01:31:51.03 0.1 undecidable manual P 112 0.0755 155 -0.25 100
IV.TRIV.HNE. 2017-04-19T01:31:53.18 0.1 undecidable manual P 293 0.2122 124 0.34 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HHN. ML:1.4 0.00012725 0.42 AML other m 2017-04-19T01:31:58.57
IV.BSSO.HNN. ML:1.8 0.0003215 1.12 AML other m 2017-04-19T01:31:58.58
IV.BSSO.HHE. ML:1.5 0.0001495 0.28 AML other m 2017-04-19T01:31:59.93
IV.BSSO.HNE. ML:1.9 0.0003695 0.78 AML other m 2017-04-19T01:32:01.92
IV.CIGN.HHN. ML:2.1 0.0008585 0.5 AML other m 2017-04-19T01:31:55.24
IV.INTR.HHN. ML:2.2 0.0001785 1.34 AML other m 2017-04-19T01:32:16.30
IV.INTR.HHE. ML:1.8 8.38E-5 0.52 AML other m 2017-04-19T01:32:24.60
IV.SACR.HNE. ML:2 0.0003714858 0.36 AML other m 2017-04-19T01:31:59.74
IV.SGG.HHN. ML:1.4 5.9639785E-5 0.3 AML other m 2017-04-19T01:32:04.13
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