Earthquake with magnitude of ML 1.6 on date 19-02-2020 and time 20:56:56 (Italy) in region 9 km NW Arquata del Tronto (AP)

A magnitude ML 1.6 earthquake occured in region: 9 km NW Arquata del Tronto (AP), on

  • 19-02-2020 19:56:56 (UTC)
  • 19-02-2020 20:56:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.82, 13.21 at 9 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
Arquata del Tronto AP 9 1178 1178
Castelsantangelo sul Nera MC 9 281 1459
Norcia PG 10 4957 6416
Montegallo AP 10 523 6939
Montemonaco AP 13 604 7543
Accumoli RI 15 667 8210
Ussita MC 15 444 8654
Preci PG 15 724 9378
Visso MC 16 1107 10485
Montefortino FM 17 1178 11663
Acquasanta Terme AP 17 2916 14579
Bolognola MC 19 142 14721
Cascia PG 20 3217 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
44 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
55 Km N of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
92 Km S of Ancona (100861 inhabitants)
94 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 2020-02-19
19:56:56
42.82 13.21 9 2020-02-19
20:02:36
Sala Sismica INGV-Roma 76656621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-19 19:56:56 ± 0.05
Latitude 42.82 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76656621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 326
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.55938
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 76656621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-19 20:02:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-02-19T19:57:39.40 3.0 undecidable manual S -2.23 0
IV.CRE.HHZ. 2020-02-19T19:57:20.96 3.0 undecidable manual P 1.6 0
IV.EL6.EHZ. 2020-02-19T19:57:16.17 3.0 undecidable manual S 351 0.5117 50 1.76 0
IV.CESX.HHZ. 2020-02-19T19:57:13.17 3.0 undecidable manual S -2.05 0
IV.SSFR.HHZ. 2020-02-19T19:57:10.42 3.0 negative manual P -0.06 0
IV.CESI.HHZ. 2020-02-19T19:57:08.00 0.6 undecidable manual S 309 0.2878 50 0.24 46
IV.GAVE.EHZ. 2020-02-19T19:57:07.44 0.6 undecidable manual S 241 0.2662 50 0.32 45
IV.CSP1.EHZ. 2020-02-19T19:57:07.23 0.6 undecidable manual S 359 0.2689 50 0.03 48
IV.LNSS.HHZ. 2020-02-19T19:57:07.21 0.6 undecidable manual S 209 0.2527 109 0.53 43
IV.FIAM.HHZ. 2020-02-19T19:57:07.50 1.0 undecidable manual P 187 0.5594 50 -0.11 22
IV.MF5.EHZ. 2020-02-19T19:57:07.29 0.6 undecidable manual S 48 0.2464 109 0.84 38
IV.GUMA.HHZ. 2020-02-19T19:57:07.25 0.6 undecidable manual S 21 0.2563 108 0.43 44
IV.ATCC.EHZ. 2020-02-19T19:57:07.62 0.1 undecidable manual P 311 0.5513 50 0.14 89
IV.EL6.EHZ. 2020-02-19T19:57:06.92 1.0 negative manual P 351 0.5117 50 0.12 22
IV.FDMO.HHZ. 2020-02-19T19:57:05.62 0.6 undecidable manual S 337 0.2311 110 -0.28 46
IV.MTRA.EHZ. 2020-02-19T19:57:03.12 0.6 undecidable manual S 116 0.1529 119 -0.02 49
IV.CAMP.HHZ. 2020-02-19T19:57:03.36 0.1 undecidable manual P 153 0.3229 50 -0.2 92
IV.TERO.HHZ. 2020-02-19T19:57:03.78 0.1 undecidable manual P 125 0.3525 50 -0.29 89
IV.RM33.EHZ. 2020-02-19T19:57:03.39 0.1 undecidable manual P 179 0.3139 50 -0.03 95
IV.GUMA.HHZ. 2020-02-19T19:57:02.53 0.1 undecidable manual P 21 0.2563 108 0.11 95
IV.GAVE.EHZ. 2020-02-19T19:57:02.58 0.1 undecidable manual P 241 0.2662 50 -0.01 96
IV.CSP1.EHZ. 2020-02-19T19:57:02.42 0.1 undecidable manual P 359 0.2689 50 -0.22 92
IV.LNSS.HHZ. 2020-02-19T19:57:02.40 0.1 undecidable manual P 209 0.2527 109 0.05 96
IV.MF5.EHZ. 2020-02-19T19:57:02.44 0.1 undecidable manual P 48 0.2464 109 0.23 92
IV.CESI.HHZ. 2020-02-19T19:57:02.91 0.1 undecidable manual P 309 0.2878 50 -0.06 95
IV.FDMO.HHZ. 2020-02-19T19:57:01.67 0.1 undecidable manual P 337 0.2311 110 -0.22 93
IV.MC2.EHZ. 2020-02-19T19:57:01.04 0.6 undecidable manual S 350 0.089 133 -0.12 49
IV.SMA1.EHZ. 2020-02-19T19:57:01.38 0.1 undecidable manual P 154 0.2131 112 -0.14 95
IV.MMO1.EHZ. 2020-02-19T19:57:01.49 0.6 undecidable manual S 48 0.1151 126 -0.42 45
IV.NRCA.HNZ. 2020-02-19T19:57:00.44 0.6 undecidable manual S 278 0.0701 140 -0.23 48
IV.MTRA.EHZ. 2020-02-19T19:57:00.55 0.1 positive manual P 116 0.1529 119 0.25 94
IV.MC2.EHZ. 2020-02-19T19:56:59.20 0.1 negative manual P 350 0.089 133 0.05 99
IV.MMO1.EHZ. 2020-02-19T19:56:59.33 0.1 undecidable manual P 48 0.1151 126 -0.26 94
IV.NRCA.HNZ. 2020-02-19T19:56:58.86 0.1 undecidable manual P 278 0.0701 140 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.3 0.00321 0.08 AML other m 2020-02-19T19:57:00.67
IV.NRCA.HHE. ML:2.4 0.003505 0.08 AML other m 2020-02-19T19:57:00.67
IV.NRCA.HNN. ML:2.4 0.003805 0.8 AML other m 2020-02-19T19:57:01.65
IV.NRCA.HHN. ML:2.4 0.0039 0.8 AML other m 2020-02-19T19:57:01.65
IV.MTRA.EHE. ML:1.7 0.00044 0.46 AML other m 2020-02-19T19:57:04.01
IV.MTRA.HNN. ML:1.8 0.0005855 1.46 AML other m 2020-02-19T19:57:04.14
IV.MTRA.EHN. ML:1.8 0.0005275 1.46 AML other m 2020-02-19T19:57:04.87
IV.MTRA.HNE. ML:1.7 0.0004755 0.5 AML other m 2020-02-19T19:57:04.32
IV.FDMO.HHN. ML:1.4 0.000144 0.32 AML other m 2020-02-19T19:57:07.22
IV.CSP1.EHE. ML:1.7 0.000228 0.92 AML other m 2020-02-19T19:57:07.49
IV.GUMA.HNE. ML:2.1 0.000639 0.32 AML other m 2020-02-19T19:57:07.53
IV.GUMA.HHE. ML:2.2 0.0008835 0.32 AML other m 2020-02-19T19:57:07.55
IV.LNSS.HHE. ML:1.7 0.0002585 0.12 AML other m 2020-02-19T19:57:07.90
IV.GAVE.EHN. ML:1.8 0.000328 0.26 AML other m 2020-02-19T19:57:07.83
IV.GUMA.HNN. ML:2.2 0.000849 1.16 AML other m 2020-02-19T19:57:08.15
IV.GAVE.EHE. ML:1.8 0.0003315 0.2 AML other m 2020-02-19T19:57:08.24
IV.GUMA.HHN. ML:2 0.000578 0.52 AML other m 2020-02-19T19:57:08.57
IV.CESI.HHN. ML:1.6 0.000164 0.32 AML other m 2020-02-19T19:57:08.52
IV.CSP1.EHN. ML:1.7 0.0002505 0.96 AML other m 2020-02-19T19:57:08.69
IV.FDMO.HHE. ML:1.4 0.0001425 1.44 AML other m 2020-02-19T19:57:09.73
IV.RM33.EHE. ML:1.4 0.0001105 0.74 AML other m 2020-02-19T19:57:09.56
IV.SMA1.EHN. ML:1.5 0.0002135 0.78 AML other m 2020-02-19T19:57:09.95
IV.LNSS.HHN. ML:1.7 0.000269 0.68 AML other m 2020-02-19T19:57:09.62
IV.CESI.HHE. ML:1.4 0.0001165 0.24 AML other m 2020-02-19T19:57:10.13
IV.RM33.EHN. ML:1.4 9.52E-5 0.28 AML other m 2020-02-19T19:57:11.43
IV.TERO.HHE. ML:1.2 5.68E-5 0.76 AML other m 2020-02-19T19:57:12.66
IV.SMA1.EHE. ML:1.6 0.0002265 0.56 AML other m 2020-02-19T19:57:12.69
IV.TERO.HHN. ML:1.2 5.985E-5 1.52 AML other m 2020-02-19T19:57:13.21
IV.CAMP.HHN. ML:1.1 4.445E-5 1.08 AML other m 2020-02-19T19:57:16.76
IV.EL6.EHN. ML:1.6 8.585E-5 1.76 AML other m 2020-02-19T19:57:17.88
IV.CAMP.HHE. ML:1.1 4.455E-5 1.48 AML other m 2020-02-19T19:57:17.77
IV.EL6.EHE. ML:1.6 8.29E-5 1.52 AML other m 2020-02-19T19:57:17.17
IV.ATCC.EHE. ML:1.4 5.725E-5 1.3 AML other m 2020-02-19T19:57:19.89
IV.ATCC.EHN. ML:1.4 4.83E-5 0.52 AML other m 2020-02-19T19:57:20.19
IV.SSFR.HHE. ML:1.6 6.465E-5 0.48 AML other m 2020-02-19T19:57:23.42
IV.SSFR.HHN. ML:1.5 5.24E-5 0.9 AML other m 2020-02-19T19:57:24.62
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