Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 15-02-2020 and time 17:19:44 (Italy) in region 6 km E Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 6 km E Amatrice (RI), on

  • 15-02-2020 16:19:44 (UTC)
  • 15-02-2020 17:19:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6160, 13.3560 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.

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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 6 2657 2657
Campotosto AQ 7 542 3199
Capitignano AQ 11 665 3864
Cortino TE 13 656 4520
Accumoli RI 13 667 5187
Crognaleto TE 13 1297 6484
Montereale AQ 14 2581 9065
Cittareale RI 16 482 9547
Rocca Santa Maria TE 16 537 10084
Fano Adriano TE 17 296 10380
Valle Castellana TE 18 977 11357
Acquasanta Terme AP 18 2916 14273
Arquata del Tronto AP 18 1178 15451
Pietracamela TE 19 271 15722
Barete AQ 19 737 16459

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Teramo (54892 inhabitants)
30 Km N of L'Aquila (69753 inhabitants)
58 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
72 Km W of Pescara (121014 inhabitants)
73 Km W of Chieti (51815 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
96 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 0.9 2020-02-15
16:19:44		 42.616 13.3562 13 2020-02-15
16:25:46		 Sala Sismica INGV-Roma 76543651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-15 16:19:44 ± 0.2
Latitude 42.6160 ± 0.0108
Longitude 13.3562 ± 0.0159
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76543651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1524
Semi-minor axis of confidence ellipse (meter) 654
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 1520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.02068
Epicentral distance of station farthest from the epicenter (degree) 0.48833
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 76543651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-15 16:25:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-02-15T16:20:01.67 0.3 undecidable manual S 347 54.2013 93 0.34 66
IV.MC2.EHZ. 2020-02-15T16:19:56.92 0.3 undecidable manual S 337 35.5422 95 0.57 64
IV.NRCA.HHZ. 2020-02-15T16:19:54.79 0.3 undecidable manual S 321 31.1466 97 -0.41 69
IV.GIGS.HHZ. 2020-02-15T16:19:53.77 0.3 undecidable manual S 135 25.2525 100 0.12 74
IV.CSP1.EHZ. 2020-02-15T16:19:53.93 0.1 undecidable manual P 347 54.2013 93 -0.25 91
IV.TERO.HHZ. 2020-02-15T16:19:52.23 0.3 undecidable manual S 88 20.2686 105 -0.1 73
IV.MC2.EHZ. 2020-02-15T16:19:51.20 0.1 undecidable manual P 337 35.5422 95 -0.1 97
IV.NRCA.HHZ. 2020-02-15T16:19:50.38 0.1 undecidable manual P 321 31.1466 97 -0.26 94
IV.GIGS.HHZ. 2020-02-15T16:19:49.90 0.1 undecidable manual P 135 25.2525 100 0.16 97
IV.TERO.HHZ. 2020-02-15T16:19:49.04 0.1 undecidable manual P 88 20.2686 105 0.06 100
IV.SMA1.EHZ. 2020-02-15T16:19:48.59 0.3 undecidable manual S 313 2.2977 167 -0.29 74
IV.SMA1.EHZ. 2020-02-15T16:19:47.24 0.1 undecidable manual P 313 2.2977 167 0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.9 0.0001042 0.28 AML other m 2020-02-15T16:19:49.15
IV.SMA1.EHE. ML:0.8 0.0000778 1.56 AML other m 2020-02-15T16:19:49.15
IV.TERO.HHN. ML:0.9 0.0000553 0.48 AML other m 2020-02-15T16:19:52.26
IV.TERO.HHE. ML:0.6 0.0000263 0.9 AML other m 2020-02-15T16:19:53.02
IV.NRCA.HHE. ML:1.1 0.0000606 1.32 AML other m 2020-02-15T16:19:54.99
IV.NRCA.HHN. ML:1.0 0.00004505 0.12 AML other m 2020-02-15T16:19:55.73
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