Earthquake with magnitude of ML 0.7 on date 21-09-2019 and time 01:00:57 (Italy) in region 3 km N Amatrice (RI)

A magnitude ML 0.7 earthquake occured in region: 3 km N Amatrice (RI), on

  • 20-09-2019 23:00:57 (UTC)
  • 21-09-2019 01:00:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6560, 13.2940 at 12 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 3 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 12 482 3806
Campotosto AQ 13 542 4348
Arquata del Tronto AP 13 1178 5526
Capitignano AQ 15 665 6191
Montereale AQ 15 2581 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 18 656 12344
Valle Castellana TE 19 977 13321
Crognaleto TE 19 1297 14618
Rocca Santa Maria TE 19 537 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
35 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
89 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 0.7 2019-09-20
23:00:57
42.6555 13.2938 12 2019-09-20
23:06:24
Sala Sismica INGV-Roma 72597201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-20 23:00:57 ± 0.06
Latitude 42.6555 ± 0.0027
Longitude 13.2938 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72597201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 153
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.26710
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 72597201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-20 23:06:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.HNZ. 2019-09-20T23:01:06.96 0.1 undecidable manual S 6 27.1506 95 0.06 95
IV.TERO.HHZ. 2019-09-20T23:01:06.27 0.1 undecidable manual S 98 25.5522 96 -0.2 94
IV.LNSS.HHZ. 2019-09-20T23:01:05.28 0.1 undecidable manual S 254 21.4674 99 -0.11 94
IV.NRCA.HHZ. 2019-09-20T23:01:05.95 0.1 undecidable manual S 324 24.5532 97 -0.26 91
IV.RM33.EHZ. 2019-09-20T23:01:04.23 0.3 undecidable manual S 202 17.4714 104 -0.12 72
IV.CAMP.HHZ. 2019-09-20T23:01:03.90 0.1 undecidable manual S 145 16.2726 107 -0.13 97
IV.MTRA.EHZ. 2019-09-20T23:01:03.20 0.1 undecidable manual S 37 13.9749 114 -0.26 94
IV.MC2.EHZ. 2019-09-20T23:01:03.54 0.3 undecidable manual P 343 29.6481 95 0.37 67
IV.NRCA.HHZ. 2019-09-20T23:01:02.34 0.6 positive manual P 324 24.5532 97 -0.05 48
IV.TERO.HHZ. 2019-09-20T23:01:02.54 0.1 undecidable manual P 98 25.5522 96 0 96
IV.MMO1.HNZ. 2019-09-20T23:01:02.85 0.1 undecidable manual P 6 27.1506 95 0.06 95
IV.SMA1.EHZ. 2019-09-20T23:01:01.63 0.1 undecidable manual S 129 4.3956 155 0.01 100
IV.CAMP.HHZ. 2019-09-20T23:01:01.22 0.1 undecidable manual P 145 16.2726 107 0.09 96
IV.RM33.EHZ. 2019-09-20T23:01:01.44 0.6 undecidable manual P 202 17.4714 104 0.12 48
IV.T1299.HNZ. 2019-09-20T23:01:01.37 0.1 undecidable manual S 202 2.4975 165 -0.09 98
IV.LNSS.HHZ. 2019-09-20T23:01:01.92 0.1 undecidable manual P 254 21.4674 99 0 97
IV.MTRA.EHZ. 2019-09-20T23:01:00.88 0.1 undecidable manual P 37 13.9749 114 0.08 97
IV.T1299.HNZ. 2019-09-20T23:00:59.88 0.1 undecidable manual P 202 2.4975 165 0.24 96
IV.SMA1.EHZ. 2019-09-20T23:00:59.99 0.6 undecidable manual P 129 4.3956 155 0.25 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.7 0.00006642266 0.1408 AML other m 2019-09-20T23:01:02.02
IV.SMA1.EHN. ML:0.6 0.000053356895000000004 0.0896 AML other m 2019-09-20T23:01:01.88
IV.RM33.EHN. ML:0.4 0.000020174120000000002 0.1664 AML other m 2019-09-20T23:01:04.80
IV.NRCA.HNE. ML:1.0 0.00006096378499999999 0.1408 AML other m 2019-09-20T23:01:06.25
IV.NRCA.HHE. ML:1.2 0.000078449905 0.1664 AML other m 2019-09-20T23:01:06.24
IV.NRCA.HHN. ML:0.6 0.000026079445 0.0768 AML other m 2019-09-20T23:01:06.67
IV.TERO.HHE. ML:0.4 0.00001584159 0.064 AML other m 2019-09-20T23:01:06.40
IV.TERO.HHN. ML:0.6 0.000017916235000000002 0.0896 AML other m 2019-09-20T23:01:06.30
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