Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 29-05-2021 and time 09:59:03 (Italy) in region 4 km N Roccasicura (IS)

A magnitude ML 1.3 earthquake occured in region: 4 km N Roccasicura (IS), on

  • 29-05-2021 07:59:03 (UTC)
  • 29-05-2021 09:59:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7360, 14.2260 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Roccasicura IS 4 550 550
Vastogirardi IS 5 704 1254
Forlì del Sannio IS 6 675 1929
Carovilli IS 6 1359 3288
San Pietro Avellana IS 7 503 3791
Rionero Sannitico IS 8 1118 4909
Acquaviva d'Isernia IS 9 425 5334
Miranda IS 10 1047 6381
Castel di Sangro AQ 11 6538 12919
Pescolanciano IS 11 855 13774
Capracotta IS 11 903 14677
Castel del Giudice IS 13 346 15023
Montenero Val Cocchiara IS 13 538 15561
Pietrabbondante IS 14 759 16320
Ateleta AQ 14 1181 17501
Cerro al Volturno IS 14 1281 18782
Sessano del Molise IS 14 727 19509
Agnone IS 14 5139 24648
Pesche IS 15 1661 26309
Chiauci IS 15 233 26542
Castelverrino IS 15 115 26657
Scontrone AQ 16 574 27231
Alfedena AQ 16 864 28095
Fornelli IS 16 1909 30004
Castel San Vincenzo IS 16 516 30520
Poggio Sannita IS 16 702 31222
Isernia IS 16 21842 53064
Civitanova del Sannio IS 17 945 54009
Sant'Angelo del Pesco IS 17 364 54373
Rocchetta a Volturno IS 17 1113 55486
Pescopennataro IS 17 285 55771
Roccaraso AQ 17 1627 57398
Pizzone IS 18 329 57727
Carpinone IS 18 1157 58884
Colli a Volturno IS 18 1349 60233
Pettoranello del Molise IS 19 460 60693
Gamberale CH 19 320 61013
Scapoli IS 19 680 61693
Belmonte del Sannio IS 19 768 62461
Barrea AQ 20 726 63187
Bagnoli del Trigno IS 20 735 63922
Macchia d'Isernia IS 20 1035 64957
Rivisondoli AQ 20 700 65657

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km S of Chieti (51815 inhabitants)
74 Km N of Caserta (76326 inhabitants)
81 Km S of Pescara (121014 inhabitants)
82 Km NW of Benevento (60091 inhabitants)
85 Km N of Aversa (53047 inhabitants)
87 Km S of Montesilvano (53738 inhabitants)
89 Km N of Acerra (59573 inhabitants)
90 Km N of Giugliano in Campania (122974 inhabitants)
91 Km N of Afragola (65057 inhabitants)
92 Km N of Casoria (77642 inhabitants)
93 Km N of Marano di Napoli (59874 inhabitants)
96 Km W of San Severo (53905 inhabitants)
97 Km SE of L'Aquila (69753 inhabitants)
99 Km N of Pozzuoli (81661 inhabitants)
100 Km N of Napoli (974074 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 1.3 2021-05-29
07:59:03		 41.7363 14.2265 15 2021-12-29
11:12:02		 Bollettino Sismico Italiano INGV 90691181
Reviewed
Rev100 		ML 1.4 2021-05-29
07:59:03		 41.734 14.2308 17 2021-05-29
08:05:38		 Sala Sismica INGV-Roma 90598931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-29 07:59:03 ± 0.18
Latitude 41.7363 ± 0.0099
Longitude 14.2265 ± 0.0084
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90691181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 993
Semi-minor axis of confidence ellipse (meter) 755
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 151
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.46855
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 90598931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-29 08:05:38

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 90691181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-12 12:50:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HNE. 2021-05-29T07:59:20.04 0.6 undecidable manual S 287 52.0035 95 0.1 45
IV.POFI.HHZ. 2021-05-29T07:59:18.04 0.6 undecidable manual S 267 42.624 97 0.59 39
IV.INTR.HHZ. 2021-05-29T07:59:17.12 0.6 undecidable manual S 319 40.5261 97 0.24 45
IV.LPEL.HHZ. 2021-05-29T07:59:15.31 0.6 undecidable manual S 354 34.6431 99 -0.02 48
IV.TRIV.HHZ. 2021-05-29T07:59:13.69 0.6 undecidable manual S 83 26.9508 103 0.36 46
IV.VVLD.HNE. 2021-05-29T07:59:12.95 0.6 undecidable manual P 287 52.0035 95 -0.07 47
IV.POFI.HHZ. 2021-05-29T07:59:11.53 0.3 undecidable manual P 267 42.624 97 -0.05 71
IV.INTR.HHZ. 2021-05-29T07:59:11.08 0.1 undecidable manual P 319 40.5261 97 -0.17 93
IV.TST01.HHE. 2021-05-29T07:59:10.33 0.6 undecidable manual S 84 13.3755 126 0.35 47
IV.LPEL.HHZ. 2021-05-29T07:59:10.00 0.1 undecidable manual P 354 34.6431 99 -0.35 90
IV.TRIV.HHZ. 2021-05-29T07:59:09.16 0.3 undecidable manual P 83 26.9508 103 -0.04 72
IV.MIDA.HHZ. 2021-05-29T07:59:09.05 0.6 undecidable manual S 168 10.6782 134 -0.4 46
IV.TST01.HHE. 2021-05-29T07:59:07.39 0.3 undecidable manual P 84 13.3755 126 0.12 73
IV.MIDA.HHZ. 2021-05-29T07:59:06.95 0.1 positive manual P 168 10.6782 134 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHN. ML:1.6 0.0003545 0.76 AML other m 2021-05-29T07:59:09.47
IV.MIDA.HHE. ML:1.5 0.000329 0.72 AML other m 2021-05-29T07:59:10.10
IV.LPEL.HHE. ML:1.3 0.00008665 1.72 AML other m 2021-05-29T07:59:16.10
IV.LPEL.HHN. ML:1.2 0.0000615 0.1 AML other m 2021-05-29T07:59:16.46
IV.INTR.HHE. ML:1.0 0.0000353 0.64 AML other m 2021-05-29T07:59:17.50
IV.INTR.HHN. ML:1.2 0.000055100000000000004 0.8 AML other m 2021-05-29T07:59:17.43
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