INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 20-02-2019 and time 07:27:24 (Italy) in region 2 km N Quadri (CH)

A magnitude ML 1.6 earthquake occured in region: 2 km N Quadri (CH), on

  • 20-02-2019 06:27:24 (UTC)
  • 20-02-2019 07:27:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.94, 14.29 at 11 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
Quadri CH 2 815 815
Civitaluparella CH 2 351 1166
Borrello CH 3 354 1520
Fallo CH 3 139 1659
Pizzoferrato CH 4 1130 2789
Montenerodomo CH 5 690 3479
Montelapiano CH 5 82 3561
Villa Santa Maria CH 6 1346 4907
Montebello sul Sangro CH 6 88 4995
Sant'Angelo del Pesco IS 7 364 5359
Rosello CH 7 237 5596
Pescopennataro IS 7 285 5881
Gamberale CH 8 320 6201
Roio del Sangro CH 8 103 6304
Pennadomo CH 8 277 6581
Pietraferrazzana CH 8 134 6715
Monteferrante CH 9 129 6844
Colledimezzo CH 9 505 7349
Torricella Peligna CH 9 1353 8702
Colledimacine CH 10 202 8904
Castel del Giudice IS 10 346 9250
Ateleta AQ 12 1181 10431
Montazzoli CH 12 971 11402
Capracotta IS 12 903 12305
Bomba CH 13 816 13121
Lettopalena CH 13 358 13479
Gessopalena CH 13 1433 14912
Taranta Peligna CH 13 376 15288
Palena CH 13 1392 16680
Roccascalegna CH 14 1219 17899
Lama dei Peligni CH 14 1271 19170
Tornareccio CH 15 1838 21008
Roccaspinalveti CH 15 1339 22347
Castiglione Messer Marino CH 16 1790 24137
Agnone IS 16 5139 29276
Guilmi CH 17 421 29697
Fraine CH 17 337 30034
Belmonte del Sannio IS 17 768 30802
Civitella Messer Raimondo CH 18 848 31650
Fara San Martino CH 18 1414 33064
Vastogirardi IS 19 704 33768
Archi CH 19 2203 35971
Altino CH 19 3062 39033
San Pietro Avellana IS 19 503 39536
Pescocostanzo AQ 19 1128 40664
Atessa CH 19 10639 51303
Casoli CH 20 5664 56967
Rivisondoli AQ 20 700 57667

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km S of Chieti (51815 inhabitants)
59 Km S of Pescara (121014 inhabitants)
65 Km S of Montesilvano (53738 inhabitants)
86 Km SE of L'Aquila (69753 inhabitants)
93 Km SE of Teramo (54892 inhabitants)
95 Km W of San Severo (53905 inhabitants)
96 Km N of Caserta (76326 inhabitants)
99 Km NW of Benevento (60091 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 1.6 2019-02-20
06:27:24
41.94 14.29 11 2019-02-20
06:37:23
Sala Sismica INGV-Roma 65722941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-20 06:27:24 ± 0.17
Latitude 41.94 ± 0.02
Longitude 14.29 ± 0.01
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65722941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1821
Semi-minor axis of confidence ellipse (meter) 755
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 1820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.1313
Epicentral distance of station farthest from the epicenter (degree) 0.61424
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 65722941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-20 06:37:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.POFI.HHZ. 2019-02-20T06:27:42.10 0.6 undecidable manual S 243 0.482 50 0.38 42
IV.VVLD.HHZ. 2019-02-20T06:27:42.43 0.1 undecidable manual S 262 0.4982 50 0.23 88
IV.FAGN.HHZ. 2019-02-20T06:27:36.76 0.6 negative manual P 302 0.6142 50 -0.12 46
IV.INTR.HHZ. 2019-02-20T06:27:36.43 0.3 undecidable manual S 284 0.2923 50 0.33 68
IV.LRP.EHZ. 2019-02-20T06:27:36.09 1.0 undecidable manual P 241 0.598 50 -0.51 22
IV.TRIV.HHZ. 2019-02-20T06:27:35.41 0.3 undecidable manual S 131 0.2617 50 0.22 68
IV.VAGA.HHZ. 2019-02-20T06:27:35.09 0.3 positive manual P 184 0.5261 50 -0.28 70
IV.RNI2.HHZ. 2019-02-20T06:27:35.76 0.3 undecidable manual S 203 0.2572 50 0.72 56
IV.POFI.HHZ. 2019-02-20T06:27:34.08 0.6 undecidable manual P 243 0.482 50 -0.54 44
IV.VVLD.HHZ. 2019-02-20T06:27:34.28 0.1 undecidable manual P 262 0.4982 50 -0.62 87
IV.LPEL.HHZ. 2019-02-20T06:27:31.72 0.3 undecidable manual S 324 0.1313 127 0.48 67
IV.TRIV.HHZ. 2019-02-20T06:27:31.03 0.1 undecidable manual P 131 0.2617 50 0.18 92
IV.INTR.HHZ. 2019-02-20T06:27:30.98 0.3 undecidable manual P 284 0.2923 50 -0.4 71
IV.RNI2.HHZ. 2019-02-20T06:27:30.56 0.1 undecidable manual P 203 0.2572 50 -0.21 100
IV.LPEL.HHZ. 2019-02-20T06:27:28.57 0.1 undecidable manual P 324 0.1313 127 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIV.HNE. ML:0 0.000149501 4.32 AML other m 2019-02-20T06:27:44.83
IV.TRIV.HHN. ML:0 0.000139147825 1.2 AML other m 2019-02-20T06:27:50.94
IV.TRIV.HNN. ML:0 0.00014515885 1.36 AML other m 2019-02-20T06:27:50.96
IV.TRIV.HHE. ML:0 0.0001478426 1.1392 AML other m 2019-02-20T06:27:49.83
IV.LPEL.HHE. ML:1.9 0.00076965755 0.2976 AML other m 2019-02-20T06:27:39.67
IV.LPEL.HHN. ML:1.7 0.0004612672 0.1184 AML other m 2019-02-20T06:27:33.47
IV.LPEL.HNE. ML:1.9 0.00075604935 0.2976 AML other m 2019-02-20T06:27:39.67
IV.LPEL.HNN. ML:1.7 0.000449836 0.88 AML other m 2019-02-20T06:27:39.71
IV.RNI2.HHE. ML:1.8 0.0002924138 0.24 AML other m 2019-02-20T06:27:37.68
IV.RNI2.HHN. ML:1.7 0.00027405755 0.4416 AML other m 2019-02-20T06:27:41.76
IV.RNI2.HNE. ML:1.8 0.00027938 0.24 AML other m 2019-02-20T06:27:37.68
IV.RNI2.HNN. ML:1.7 0.00027146015 0.4192 AML other m 2019-02-20T06:27:41.77
IV.INTR.HHE. ML:1.5 0.000135053 0.3008 AML other m 2019-02-20T06:27:37.24
IV.INTR.HHN. ML:2 0.00049112985 0.5824 AML other m 2019-02-20T06:27:37.22
IV.INTR.HNE. ML:1.7 0.00023835775 0.6016 AML other m 2019-02-20T06:27:37.24
IV.INTR.HNN. ML:2.1 0.00060562195 0.6208 AML other m 2019-02-20T06:27:37.22
IV.POFI.HHE. ML:1.4 5.8555005E-5 0.5184 AML other m 2019-02-20T06:27:45.93
IV.POFI.HHN. ML:1.3 5.1090475E-5 0.3008 AML other m 2019-02-20T06:27:43.20
IV.POFI.HNE. ML:0 1.158303E-7 0.912 AML other m 2019-02-20T06:27:42.63
IV.POFI.HNN. ML:0 1.02223335E-7 0.64 AML other m 2019-02-20T06:27:44.87
IV.VVLD.HHE. ML:1.7 0.000102850305 0.4 AML other m 2019-02-20T06:27:42.36
IV.VVLD.HHN. ML:1.6 8.8483605E-5 0.2208 AML other m 2019-02-20T06:27:43.63
IV.VAGA.HNE. ML:1.5 7.1885125E-5 0.6816 AML other m 2019-02-20T06:27:50.20
IV.VAGA.HNN. ML:1.8 0.0001415515 0.3808 AML other m 2019-02-20T06:27:45.68
IV.VAGA.HHE. ML:1.6 7.634003E-5 0.4224 AML other m 2019-02-20T06:27:45.03
IV.VAGA.HHN. ML:1.8 0.00014494695 0.3808 AML other m 2019-02-20T06:27:45.88
IV.LRP.EHE. ML:1.4 5.1421475E-5 0.4192 AML other m 2019-02-20T06:27:46.21
IV.LRP.EHN. ML:1.4 4.9413315E-5 0.5184 AML other m 2019-02-20T06:27:52.33
IV.FAGN.HHE. ML:2 0.0001838652 0.5184 AML other m 2019-02-20T06:27:52.76
IV.FAGN.HHN. ML:2 0.00015533915 0.5216 AML other m 2019-02-20T06:27:48.10
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