Earthquake with magnitude of ML 1.5 on date 08-10-2021 and time 03:36:58 (Italy) in region 5 km S Celano (AQ)

A magnitude ML 1.5 earthquake occured in region: 5 km S Celano (AQ), on

  • 08-10-2021 01:36:58 (UTC)
  • 08-10-2021 03:36:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.045, 13.546 at 16 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
Celano AQ 5 11017 11017
Cerchio AQ 5 1635 12652
Aielli AQ 6 1475 14127
Collarmele AQ 7 894 15021
San Benedetto dei Marsi AQ 8 3909 18930
Trasacco AQ 10 6246 25176
Pescina AQ 10 4133 29309
Avezzano AQ 10 42515 71824
Ovindoli AQ 10 1227 73051
Luco dei Marsi AQ 11 6079 79130
Ortucchio AQ 13 1860 80990
Massa d'Albe AQ 15 1476 82466
Capistrello AQ 16 5252 87718
Magliano de' Marsi AQ 16 3690 91408
Gioia dei Marsi AQ 16 1989 93397
Gagliano Aterno AQ 16 254 93651
Canistro AQ 16 995 94646
Ortona dei Marsi AQ 16 542 95188
Secinaro AQ 16 359 95547
Scurcola Marsicana AQ 17 2824 98371
Lecce nei Marsi AQ 17 1702 100073
Civitella Roveto AQ 17 3268 103341
Collelongo AQ 18 1233 104574
Castelvecchio Subequo AQ 18 982 105556
Castel di Ieri AQ 18 303 105859
Rocca di Mezzo AQ 18 1526 107385
Castellafiume AQ 18 1106 108491
Civita d'Antino AQ 19 979 109470
Cocullo AQ 19 230 109700
Goriano Sicoli AQ 19 569 110269
Tione degli Abruzzi AQ 19 310 110579
Molina Aterno AQ 20 386 110965

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SE of L'Aquila (69753 inhabitants)
62 Km SW of Chieti (51815 inhabitants)
62 Km E of Tivoli (56533 inhabitants)
68 Km E of Guidonia Montecelio (88673 inhabitants)
70 Km S of Teramo (54892 inhabitants)
72 Km SW of Montesilvano (53738 inhabitants)
72 Km SW of Pescara (121014 inhabitants)
75 Km NE of Velletri (53303 inhabitants)
83 Km NE of Latina (125985 inhabitants)
89 Km E of Roma (2864731 inhabitants)
90 Km NE of Aprilia (73446 inhabitants)
94 Km SE of Terni (111501 inhabitants)
96 Km E of Pomezia (62966 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.5 2021-10-08
01:36:58
42.0453 13.5455 16 2021-10-08
01:57:21
Sala Sismica INGV-Roma 96336161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-08 01:36:58 ± 0.2
Latitude 42.0453 ± 0.0036
Longitude 13.5455 ± 0.0073
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96336161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2689
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.6
Num. used stations 6
Type of magnitude ML
Reference to an origin 96336161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-08 01:57:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSSA.HHZ. 2021-10-08T01:37:55.94 3.0 undecidable manual Pg 15.02 0
IX.PGN3.HHZ.02 2021-10-08T01:37:54.74 3.0 undecidable manual Sn -0.07 0
IV.TREG.EHZ. 2021-10-08T01:37:44.81 3.0 negative manual Pn 0.02 0
IX.SCL3.EHZ.02 2021-10-08T01:37:24.95 3.0 positive manual Pn 3.42 0
IV.TST02.HHZ. 2021-10-08T01:37:11.39 3.0 undecidable manual Pg 3.81 0
IV.T0110.HHZ. 2021-10-08T01:37:09.27 0.6 undecidable manual S 43 0.2509 107 0.19 48
IV.INTR.HHZ. 2021-10-08T01:37:09.52 0.6 undecidable manual S 97 0.2689 105 -0.05 50
IV.FAGN.HHZ. 2021-10-08T01:37:08.14 0.6 undecidable manual S 7 0.2221 110 -0.12 49
IV.VVLD.HHZ. 2021-10-08T01:37:07.03 0.6 undecidable manual S 162 0.1844 116 -0.21 49
IV.PTQR.HHZ. 2021-10-08T01:37:05.30 0.6 undecidable manual S 258 0.1097 134 -0.12 50
IV.INTR.HHZ. 2021-10-08T01:37:05.10 0.1 undecidable manual P 97 0.2689 105 0.01 99
IV.T0110.HHZ. 2021-10-08T01:37:04.90 0.6 positive manual P 43 0.2509 107 0.09 49
IV.VVLD.HHZ. 2021-10-08T01:37:03.80 0.1 negative manual P 162 0.1844 116 0.05 99
IV.FAGN.HHZ. 2021-10-08T01:37:03.85 1.0 positive manual P 7 0.2221 110 -0.48 23
IV.PTQR.HHZ. 2021-10-08T01:37:02.82 0.1 undecidable manual P 258 0.1097 134 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHN. ML:1.4 0.00014055 0.24 AML other m 2021-10-08T01:37:07.45
IV.VVLD.HHE. ML:1.2 9.62E-5 1.64 AML other m 2021-10-08T01:37:08.08
IV.FAGN.HHN. ML:1.4 0.0001455 0.46 AML other m 2021-10-08T01:37:09.59
IV.FAGN.HHE. ML:1.5 0.0001815 0.58 AML other m 2021-10-08T01:37:10.59
IV.TREG.EHN. ML:3.2 6.835E-5 0.1 AML other m 2021-10-08T01:38:00.24
IV.TREG.EHE. ML:3.2 8.2E-5 0.1 AML other m 2021-10-08T01:38:22.62
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