Earthquake with magnitude of ML 1.0 on date 03-02-2020 and time 21:34:09 (UTC) in region 2 km NE Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Amatrice (RI), on

  • 03-02-2020 21:34:09 (UTC)
  • 03-02-2020 22:34:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6440, 13.3120 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
Amatrice RI 2 2657 2657
Accumoli RI 8 667 3324
Campotosto AQ 11 542 3866
Cittareale RI 13 482 4348
Capitignano AQ 14 665 5013
Montereale AQ 14 2581 7594
Arquata del Tronto AP 14 1178 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 16 656 12344
Crognaleto TE 17 1297 13641
Rocca Santa Maria TE 18 537 14178
Valle Castellana TE 18 977 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Teramo (54892 inhabitants)
33 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
77 Km W of Pescara (121014 inhabitants)
77 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2020-02-03
21:34:09
42.6442 13.3123 11 2020-02-03
21:40:43
Sala Sismica INGV-Roma 76173461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-03 21:34:09 ± 0.1
Latitude 42.6442 ± 0.0063
Longitude 13.3123 ± 0.0147
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76173461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1205
Semi-minor axis of confidence ellipse (meter) 609
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 109
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.02158
Epicentral distance of station farthest from the epicenter (degree) 0.25541
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 76173461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-03 21:40:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-02-03T21:34:19.61 0.3 undecidable manual S 2 28.3494 50 0.22 70
IV.TERO.HHZ. 2020-02-03T21:34:18.33 1.0 undecidable manual S 96 23.9538 50 0.11 24
IV.RM33.EHZ. 2020-02-03T21:34:16.21 0.3 undecidable manual S 208 16.9719 50 -0.16 72
IV.MMO1.EHZ. 2020-02-03T21:34:14.81 0.3 undecidable manual P 2 28.3494 50 -0.34 68
IV.TERO.HHZ. 2020-02-03T21:34:14.38 0.6 undecidable manual P 96 23.9538 50 -0.09 48
IV.RM33.EHZ. 2020-02-03T21:34:13.64 0.1 undecidable manual P 208 16.9719 50 0.24 94
IV.SMA1.EHZ. 2020-02-03T21:34:13.32 0.1 undecidable manual S 129 2.3976 168 0.07 100
IV.SMA1.EHZ. 2020-02-03T21:34:11.53 0.1 undecidable manual P 129 2.3976 168 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.3 0.00033850000000000004 0.28 AML other m 2020-02-03T21:34:13.57
IV.SMA1.EHN. ML:1.0 0.0001525 0.1 AML other m 2020-02-03T21:34:13.70
IV.RM33.EHN. ML:0.8 0.00005 1.14 AML other m 2020-02-03T21:34:17.64
IV.RM33.EHE. ML:0.9 0.0000673 1.1 AML other m 2020-02-03T21:34:17.08
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download