Earthquake with magnitude of ML 0.8 on date 25-03-2021 and time 08:04:39 (Italy) in region 7 km NW Cortino (TE)

A magnitude ML 0.8 earthquake occured in region: 7 km NW Cortino (TE), on

  • 25-03-2021 07:04:39 (UTC)
  • 25-03-2021 08:04:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6620, 13.4390 at 17 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cortino TE 7 656 656
Rocca Santa Maria TE 8 537 1193
Valle Castellana TE 10 977 2170
Acquasanta Terme AP 12 2916 5086
Campotosto AQ 13 542 5628
Amatrice RI 13 2657 8285
Crognaleto TE 13 1297 9582
Fano Adriano TE 15 296 9878
Accumoli RI 16 667 10545
Arquata del Tronto AP 17 1178 11723
Torricella Sicura TE 18 2641 14364
Pietracamela TE 18 271 14635
Montorio al Vomano TE 18 8218 22853
Capitignano AQ 19 665 23518

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km W of Teramo (54892 inhabitants)
35 Km N of L'Aquila (69753 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
66 Km E of Terni (111501 inhabitants)
67 Km W of Pescara (121014 inhabitants)
68 Km E of Foligno (57155 inhabitants)
69 Km NW of Chieti (51815 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
99 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
Bulletin
Rev1000
ML 0.8 2021-03-25
07:04:39
42.6617 13.4393 17 2021-07-12
16:55:11
Bollettino Sismico Italiano INGV 90088691
Reviewed
Rev100
ML 0.7 2021-03-25
07:04:39
42.6577 13.4363 14 2021-03-25
07:11:37
Sala Sismica INGV-Roma 88455031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-25 07:04:39 ± 0.1
Latitude 42.6617 ± 0.0045
Longitude 13.4393 ± 0.0049
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90088691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29408
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 90088691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-14 11:03:56

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 88455031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-25 07:11:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IST3.HHZ. 2021-03-25T07:05:50.43 3.0 undecidable manual Sn -1.55 0
IV.SCIAC.HHZ. 2021-03-25T07:05:40.02 3.0 undecidable manual Pg 16.42 0
IV.EUCT.HNZ. 2021-03-25T07:05:40.72 3.0 positive manual Pg 13.98 0
MN.TIR.HHZ. 2021-03-25T07:05:21.84 3.0 negative manual Pn -3.73 0
IV.FIAM.HHZ. 2021-03-25T07:05:04.85 3.0 undecidable manual Sn 0.18 0
IV.VAGA.HHZ. 2021-03-25T07:05:03.97 3.0 undecidable manual Sn -0.99 0
IV.FIR.HHZ. 2021-03-25T07:05:02.78 3.0 undecidable manual Pn 1.94 0
IT.FIE.HGZ. 2021-03-25T07:04:57.83 3.0 undecidable manual Pn -3.04 0
IV.MCRV.HHZ. 2021-03-25T07:04:50.49 3.0 undecidable manual Pn 0.72 0
IV.NRCA.HHZ. 2021-03-25T07:04:50.63 0.6 undecidable manual S 306 32.6451 106 -0.05 48
IV.GIGS.HHE. 2021-03-25T07:04:48.77 0.3 undecidable manual S 155 25.5522 113 -0.13 72
IV.TERO.HHZ. 2021-03-25T07:04:46.29 0.3 undecidable manual S 108 14.0748 133 -0.02 75
IV.MTRA.EHZ. 2021-03-25T07:04:45.64 0.3 undecidable manual S 342 11.0778 141 -0.13 74
IV.SMA1.EHZ. 2021-03-25T07:04:45.49 0.6 undecidable manual S 248 9.1797 147 0.03 51
IV.SAP2.EHZ. 2021-03-25T07:04:45.66 3.0 positive manual Pn -0.93 0
IV.NRCA.HHZ. 2021-03-25T07:04:45.84 0.3 undecidable manual P 306 32.6451 106 -0.02 72
IV.GIGS.HHE. 2021-03-25T07:04:44.79 0.3 undecidable manual P 155 25.5522 113 -0.04 73
IV.VIVA.HHZ. 2021-03-25T07:04:44.47 3.0 negative manual P 0.66 0
IV.MTRA.EHZ. 2021-03-25T07:04:43.08 0.1 undecidable manual P 342 11.0778 141 0.06 100
IV.TERO.HHZ. 2021-03-25T07:04:43.43 0.1 negative manual P 108 14.0748 133 0.09 99
IV.CERA.HHZ. 2021-03-25T07:04:43.07 3.0 negative manual P 0.96 0
IV.SMA1.EHZ. 2021-03-25T07:04:42.99 0.3 undecidable manual P 248 9.1797 147 0.14 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.8 0.00004775 0.64 AML other m 2021-03-25T07:04:58.65
IV.SMA1.EHE. ML:0.8 0.0000615 0.6 AML other m 2021-03-25T07:04:58.74
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