Earthquake with magnitude of ML 1.0 on date 29-03-2021 and time 20:41:27 (Italy) in region 5 km SW Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 5 km SW Amatrice (RI), on

  • 29-03-2021 18:41:27 (UTC)
  • 29-03-2021 20:41:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5870, 13.2710 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 5 2657 2657
Montereale AQ 7 2581 5238
Capitignano AQ 8 665 5903
Campotosto AQ 9 542 6445
Cittareale RI 10 482 6927
Accumoli RI 12 667 7594
Borbona RI 14 617 8211
Cagnano Amiterno AQ 15 1369 9580
Barete AQ 15 737 10317
Posta RI 16 694 11011
Pizzoli AQ 17 4326 15337
Crognaleto TE 18 1297 16634
Cortino TE 20 656 17290

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
78 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
92 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 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 2021-03-29
18:41:27
42.5872 13.2712 12 2021-03-29
18:49:50
Sala Sismica INGV-Roma 88595651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-29 18:41:27 ± 0.09
Latitude 42.5872 ± 0.0036
Longitude 13.2712 ± 0.0073
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 88595651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 480
Semi-minor axis of confidence ellipse (meter) 464
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.50632
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:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 88595651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-29 18:49:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-03-29T18:41:45.99 0.6 undecidable manual S 355 56.1993 91 0.63 40
IV.FIAM.HHE. 2021-03-29T18:41:40.14 0.6 undecidable manual S 200 37.5291 92 -0.24 47
IV.MMO1.EHZ. 2021-03-29T18:41:39.73 0.6 undecidable manual S 7 34.9428 92 0.05 48
IV.NRCA.HHZ. 2021-03-29T18:41:38.05 0.3 undecidable manual S 335 30.1476 93 -0.36 68
IV.CSP1.EHZ. 2021-03-29T18:41:38.11 0.3 undecidable manual P 355 56.1993 91 0.13 68
IV.TERO.HHZ. 2021-03-29T18:41:37.46 0.3 undecidable manual S 82 27.4503 94 -0.23 71
IV.LNSS.HNZ. 2021-03-29T18:41:35.21 0.6 undecidable manual S 275 18.9699 99 -0.21 48
IV.FIAM.HHE. 2021-03-29T18:41:35.00 0.3 undecidable manual P 200 37.5291 92 -0.1 72
IV.MTRA.HNN. 2021-03-29T18:41:35.75 0.3 undecidable manual S 29 21.3675 96 -0.33 70
IV.MMO1.EHZ. 2021-03-29T18:41:34.72 0.1 undecidable manual P 7 34.9428 92 0.02 97
IV.NRCA.HHZ. 2021-03-29T18:41:33.81 0.1 undecidable manual P 335 30.1476 93 -0.15 95
IV.TERO.HHZ. 2021-03-29T18:41:33.60 0.1 undecidable manual P 82 27.4503 94 0.05 97
IV.SMA1.EHZ. 2021-03-29T18:41:32.69 0.6 undecidable manual S 47 7.0929 140 0.04 51
IV.MTRA.HNN. 2021-03-29T18:41:32.66 0.3 undecidable manual P 29 21.3675 96 0.04 74
IV.T1299.EHZ. 2021-03-29T18:41:32.16 0.6 undecidable manual S 10 5.2947 149 -0.21 49
IV.LNSS.HNZ. 2021-03-29T18:41:32.33 0.3 undecidable manual P 275 18.9699 99 0.09 74
IV.RM33.HNZ. 2021-03-29T18:41:32.92 0.6 undecidable manual S 208 9.7791 127 -0.25 48
IV.RM33.HNZ. 2021-03-29T18:41:31.17 0.1 undecidable manual P 208 9.7791 127 0.23 97
IV.T1299.EHZ. 2021-03-29T18:41:30.61 0.1 undecidable manual P 10 5.2947 149 0.14 100
IV.SMA1.EHZ. 2021-03-29T18:41:30.97 0.1 undecidable manual P 47 7.0929 140 0.33 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.9 0.00009554999999999999 0.3 AML other m 2021-03-29T18:41:33.45
IV.RM33.EHN. ML:0.8 0.00008185000000000001 0.14 AML other m 2021-03-29T18:41:34.08
IV.TERO.HHN. ML:0.0 0.00003245 0.9 AML other m 2021-03-29T18:41:37.59
IV.TERO.HHE. ML:0.0 0.0000286 0.4 AML other m 2021-03-29T18:41:37.79
IV.NRCA.HHN. ML:0.0 0.0000499 0.12 AML other m 2021-03-29T18:41:38.20
IV.NRCA.HHE. ML:0.0 0.0000692 0.16 AML other m 2021-03-29T18:41:38.27
IV.RM33.HNE. ML:1.4 0.00027410655 0.6656 AML other m 2021-03-29T18:41:37.27
IV.RM33.HNN. ML:1.1 0.00014612045 0.5888 AML other m 2021-03-29T18:41:32.93
IV.TERO.HNE. ML:0.9 0.000045489125 0.1536 AML other m 2021-03-29T18:41:37.61
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