Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 29-03-2021 and time 17:21:10 (Italy) in region 3 km SW Capitignano (AQ)

A magnitude ML 1.5 earthquake occured in region: 3 km SW Capitignano (AQ), on

  • 29-03-2021 15:21:10 (UTC)
  • 29-03-2021 17:21:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5050, 13.2770 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Capitignano AQ 3 665 665
Montereale AQ 3 2581 3246
Barete AQ 6 737 3983
Cagnano Amiterno AQ 7 1369 5352
Pizzoli AQ 8 4326 9678
Campotosto AQ 10 542 10220
Borbona RI 12 617 10837
Amatrice RI 14 2657 13494
Scoppito AQ 15 3727 17221
Posta RI 15 694 17915
Cittareale RI 16 482 18397
Crognaleto TE 17 1297 19694
Antrodoco RI 19 2588 22282
Micigliano RI 19 127 22409
L'Aquila AQ 20 69753 92162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km W of Chieti (51815 inhabitants)
77 Km W of Pescara (121014 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
99 Km SE of Perugia (166134 inhabitants)
100 Km NE of Velletri (53303 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
Bulletin
Rev1000 		ML 1.5 2021-03-29
15:21:10		 42.505 13.2772 14 2021-07-12
16:55:15		 Bollettino Sismico Italiano INGV 91316521
Reviewed
Rev100 		ML 1.5 2021-03-29
15:21:10		 42.5005 13.2773 13 2021-03-29
15:33:54		 Sala Sismica INGV-Roma 88590261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-29 15:21:10 ± 0.06
Latitude 42.5050 ± 0.0036
Longitude 13.2772 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91316521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 384
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 91316521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-15 08:08:36

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 88590261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-29 15:33:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHE. 2021-03-29T15:21:24.33 0.3 undecidable manual S 281 42.624 95 0.08 70
IV.MMO1.EHZ. 2021-03-29T15:21:24.85 0.3 undecidable manual S 5 43.9227 95 0.25 67
IV.TERO.HHZ. 2021-03-29T15:21:20.56 0.3 undecidable manual S 64 29.748 99 -0.28 68
IV.FIAM.HNZ. 2021-03-29T15:21:20.62 0.6 undecidable manual S 207 29.3484 99 -0.12 47
IV.MTRA.EHZ. 2021-03-29T15:21:20.48 0.3 undecidable manual S 19 29.5482 99 -0.32 68
IV.T0110.HHE. 2021-03-29T15:21:19.92 0.1 undecidable manual P 127 51.1155 94 0.22 88
IV.GIGS.HHZ. 2021-03-29T15:21:19.32 0.3 undecidable manual S 103 24.8529 102 -0.24 70
IV.MMO1.EHZ. 2021-03-29T15:21:18.59 0.1 undecidable manual P 5 43.9227 95 -0.01 94
IV.LNSS.HHZ. 2021-03-29T15:21:18.76 0.3 undecidable manual S 299 22.1556 105 -0.1 71
IV.MC2.EHZ. 2021-03-29T15:21:18.96 0.1 undecidable manual P 351 45.621 95 0.1 92
IV.ARRO.EHE. 2021-03-29T15:21:18.31 0.1 undecidable manual P 281 42.624 95 -0.09 93
IV.SMA1.EHZ. 2021-03-29T15:21:17.31 0.3 undecidable manual S 19 14.6742 119 0.3 70
IV.NRCA.HNZ. 2021-03-29T15:21:17.61 0.3 undecidable manual P 340 38.8278 96 -0.2 68
IV.MTRA.EHZ. 2021-03-29T15:21:16.28 0.1 undecidable manual P 19 29.5482 99 -0.12 94
IV.TERO.HHZ. 2021-03-29T15:21:16.28 0.1 undecidable manual P 64 29.748 99 -0.14 94
IV.CAMP.HHZ. 2021-03-29T15:21:16.29 0.3 undecidable manual S 72 11.2776 129 0.03 74
IV.FIAM.HNZ. 2021-03-29T15:21:16.58 0.6 undecidable manual P 207 29.3484 99 0.21 46
IV.T1299.HNZ. 2021-03-29T15:21:16.80 0.6 undecidable manual S 2 14.3745 120 -0.12 48
IV.LNSS.HHZ. 2021-03-29T15:21:15.33 0.1 undecidable manual P 299 22.1556 105 0.04 97
IV.GIGS.HHZ. 2021-03-29T15:21:15.64 0.1 undecidable manual P 103 24.8529 102 -0.05 97
IV.T1299.HNZ. 2021-03-29T15:21:14.32 0.1 undecidable manual P 2 14.3745 120 0.16 96
IV.RM33.EHZ. 2021-03-29T15:21:14.95 0.3 undecidable manual S 275 5.0949 154 -0.28 71
IV.SMA1.EHZ. 2021-03-29T15:21:14.47 0.1 undecidable manual P 19 14.6742 119 0.26 94
IV.RM33.EHZ. 2021-03-29T15:21:13.23 0.1 undecidable manual P 275 5.0949 154 0.04 100
IV.CAMP.HHZ. 2021-03-29T15:21:13.98 0.1 undecidable manual P 72 11.2776 129 0.2 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.8 0.0006105 0.26 AML other m 2021-03-29T15:21:17.61
IV.SMA1.EHN. ML:1.3 0.00018463405 0.192 AML other m 2021-03-29T15:21:17.73
IV.LNSS.HHE. ML:1.9 0.00045200000000000004 0.14 AML other m 2021-03-29T15:21:19.04
IV.LNSS.HNE. ML:1.8 0.00042365565 0.128 AML other m 2021-03-29T15:21:19.05
IV.LNSS.HHN. ML:1.7 0.000279 0.14 AML other m 2021-03-29T15:21:19.14
IV.LNSS.HNN. ML:1.6 0.00026473915000000005 0.1408 AML other m 2021-03-29T15:21:19.15
IV.MTRA.HNE. ML:1.4 0.00012692160000000001 0.0896 AML other m 2021-03-29T15:21:20.80
IV.MTRA.EHE. ML:1.5 0.000134417875 0.0896 AML other m 2021-03-29T15:21:20.76
IV.MTRA.EHN. ML:1.5 0.0001525 0.42 AML other m 2021-03-29T15:21:20.59
IV.MTRA.HNN. ML:1.4 0.0001211624 0.1536 AML other m 2021-03-29T15:21:20.92
IV.TERO.HHN. ML:0.9 0.000036325175 0.0896 AML other m 2021-03-29T15:21:21.45
IV.TERO.HHE. ML:0.7 0.00002368571 0.064 AML other m 2021-03-29T15:21:22.05
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