Earthquake with magnitude of ML 1.4 on date 03-02-2020 and time 20:50:00 (Italy) in region 2 km W Amatrice (RI)

A magnitude ML 1.4 earthquake occured in region: 2 km W Amatrice (RI), on

  • 03-02-2020 19:50:00 (UTC)
  • 03-02-2020 20:50:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.63, 13.26 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
Amatrice RI 2 2657 2657
Accumoli RI 8 667 3324
Cittareale RI 9 482 3806
Montereale AQ 12 2581 6387
Campotosto AQ 12 542 6929
Capitignano AQ 12 665 7594
Arquata del Tronto AP 16 1178 8772
Borbona RI 17 617 9389
Posta RI 18 694 10083
Cagnano Amiterno AQ 19 1369 11452
Barete AQ 20 737 12189
Acquasanta Terme AP 20 2916 15105
Crognaleto TE 20 1297 16402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
80 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
89 Km SE of Perugia (166134 inhabitants)
98 Km E of Viterbo (67173 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 2020-02-03
19:50:00
42.63 13.26 13 2020-02-03
20:05:44
Sala Sismica INGV-Roma 76172201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-03 19:50:00 ± 0.16
Latitude 42.63 ± 0.01
Longitude 13.26 ± 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 76172201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 839
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 76172201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-03 20:05:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-02-03T19:50:11.58 0.3 undecidable manual S 10 0.2752 97 0.51 66
IV.GIGS.HHZ. 2020-02-03T19:50:11.02 0.3 undecidable manual S 127 0.2869 96 -0.4 69
IV.GAVE.EHZ. 2020-02-03T19:50:10.93 0.3 undecidable manual S 283 0.2788 97 -0.25 70
IV.NRCA.HHZ. 2020-02-03T19:50:09.72 0.3 undecidable manual S 332 0.2329 99 -0.11 73
IV.TERO.HHZ. 2020-02-03T19:50:09.93 0.3 undecidable manual S 91 0.25 98 -0.42 69
IV.LNSS.HHZ. 2020-02-03T19:50:07.49 0.3 undecidable manual S 261 0.1664 108 -0.41 69
IV.RM33.EHZ. 2020-02-03T19:50:07.11 0.1 undecidable manual S 197 0.1241 119 0.34 96
IV.GAVE.EHZ. 2020-02-03T19:50:06.52 0.1 undecidable manual P 283 0.2788 97 -0.11 96
IV.GIGS.HHZ. 2020-02-03T19:50:06.63 0.3 undecidable manual P 127 0.2869 96 -0.15 72
IV.MMO1.EHZ. 2020-02-03T19:50:06.76 0.1 undecidable manual P 10 0.2752 97 0.19 95
IV.SMA1.EHZ. 2020-02-03T19:50:05.03 0.1 undecidable manual S 87 0.0531 150 -0.21 99
IV.NRCA.HHZ. 2020-02-03T19:50:05.95 0.1 undecidable manual P 332 0.2329 99 0.1 98
IV.TERO.HHZ. 2020-02-03T19:50:05.99 0.3 undecidable manual P 91 0.25 98 -0.16 73
IV.LNSS.HHZ. 2020-02-03T19:50:04.61 0.1 undecidable manual P 261 0.1664 108 -0.13 98
IV.RM33.EHZ. 2020-02-03T19:50:04.94 0.1 undecidable manual P 197 0.1241 119 0.85 80
IV.SMA1.EHZ. 2020-02-03T19:50:03.36 0.1 undecidable manual P 87 0.0531 150 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.2 0.00183 0.26 AML other m 2020-02-03T19:50:05.37
IV.SMA1.EHN. ML:1.8 0.000826 0.1 AML other m 2020-02-03T19:50:05.55
IV.LNSS.HHN. ML:1.4 0.0001915 0.4 AML other m 2020-02-03T19:50:07.71
IV.LNSS.HHE. ML:1.4 0.0001825 0.14 AML other m 2020-02-03T19:50:07.76
IV.RM33.EHN. ML:1.4 0.0002515 0.68 AML other m 2020-02-03T19:50:07.92
IV.RM33.EHE. ML:1.6 0.000341 1.8 AML other m 2020-02-03T19:50:07.94
IV.NRCA.HHN. ML:1.4 0.000118 0.12 AML other m 2020-02-03T19:50:09.94
IV.NRCA.HHE. ML:1.4 0.000134 1.82 AML other m 2020-02-03T19:50:10.95
IV.TERO.HHN. ML:1.1 6.6E-5 0.68 AML other m 2020-02-03T19:50:10.54
IV.TERO.HHE. ML:1 4.48E-5 0.34 AML other m 2020-02-03T19:50:11.38
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