Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 25-04-2020 and time 21:54:07 (Italy) in region 3 km NE Campotosto (AQ)

A magnitude ML 0.9 earthquake occured in region: 3 km NE Campotosto (AQ), on

  • 25-04-2020 19:54:07 (UTC)
  • 25-04-2020 21:54:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5850, 13.3820 at 13 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
Campotosto AQ 3 542 542
Crognaleto TE 9 1297 1839
Amatrice RI 9 2657 4496
Capitignano AQ 10 665 5161
Cortino TE 11 656 5817
Montereale AQ 13 2581 8398
Fano Adriano TE 13 296 8694
Pietracamela TE 16 271 8965
Rocca Santa Maria TE 16 537 9502
Accumoli RI 16 667 10169
Barete AQ 17 737 10906
Pizzoli AQ 18 4326 15232
Cittareale RI 19 482 15714
Cagnano Amiterno AQ 19 1369 17083
Valle Castellana TE 19 977 18060

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of L'Aquila (69753 inhabitants)
28 Km W of Teramo (54892 inhabitants)
60 Km E of Terni (111501 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
70 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
100 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 0.9 2020-04-25
19:54:07		 42.5852 13.3822 13 2020-07-18
21:08:41		 Bollettino Sismico Italiano INGV 80444821
Reviewed
Rev100 		ML 0.9 2020-04-25
19:54:07		 42.585 13.3805 14 2020-04-25
19:59:42		 Sala Sismica INGV-Roma 78583451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-25 19:54:07 ± 0.07
Latitude 42.5852 ± 0.0045
Longitude 13.3822 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80444821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 519
Semi-minor axis of confidence ellipse (meter) 128
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 78583451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-25 19:59:42

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80444821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-23 14:44:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MFNL.HHZ. 2020-04-25T19:55:56.57 3.0 undecidable manual Sn -1.92 0
GU.CARD.HHZ. 2020-04-25T19:55:16.16 3.0 undecidable manual Sn 1.73 0
XK.GIZZ.HHZ. 2020-04-25T19:55:11.70 3.0 negative manual Pg 11.47 0
IV.PIPA.HHZ. 2020-04-25T19:55:06.69 3.0 negative manual Pg 7.95 0
IV.VULT.HHZ. 2020-04-25T19:55:02.67 3.0 undecidable manual Sn 0.31 0
IV.FIR.HHZ. 2020-04-25T19:54:55.89 3.0 undecidable manual Sn -4.32 0
IV.PE3.EHZ. 2020-04-25T19:54:49.62 3.0 undecidable manual Sg 3.49 0
IV.ROSPO.HHZ. 2020-04-25T19:54:40.54 3.0 undecidable manual Sg 1.69 0
IV.MMUR.HNZ. 2020-04-25T19:54:33.59 3.0 undecidable manual Sn -4.16 0
IV.SNTG.HHZ. 2020-04-25T19:54:28.40 3.0 undecidable manual Sn -5.24 0
IV.PAOL.HHZ. 2020-04-25T19:54:27.66 3.0 positive manual Pn 0.27 0
IV.MMUR.HNZ. 2020-04-25T19:54:19.39 3.0 undecidable manual P -2.57 0
IV.NRCA.HHZ. 2020-04-25T19:54:18.75 0.1 undecidable manual S 322 35.1426 95 -0.2 94
IV.TOLF.HHZ. 2020-04-25T19:54:17.69 3.0 undecidable manual Pn -1.67 0
IV.LNSS.HNZ. 2020-04-25T19:54:16.97 0.3 undecidable manual S 274 27.9498 97 -0.07 73
IV.GIGS.HHZ. 2020-04-25T19:54:15.11 0.1 undecidable manual S 133 21.3675 102 -0.19 96
IV.TERO.HHZ. 2020-04-25T19:54:14.51 0.1 undecidable manual S 77 18.5703 106 -0.07 99
IV.RM33.EHZ. 2020-04-25T19:54:13.79 0.1 undecidable manual S 238 16.0728 111 -0.16 98
IV.NRCA.HHZ. 2020-04-25T19:54:13.86 0.1 undecidable manual P 322 35.1426 95 -0.08 96
IV.T1299.HNZ. 2020-04-25T19:54:12.56 0.3 undecidable manual S 304 9.7791 132 0.05 76
IV.LNSS.HNZ. 2020-04-25T19:54:12.88 0.1 undecidable manual P 274 27.9498 97 0.05 98
IV.RM33.EHZ. 2020-04-25T19:54:11.18 0.1 undecidable manual P 238 16.0728 111 0.13 98
IV.SMA1.EHZ. 2020-04-25T19:54:11.68 0.3 undecidable manual S 323 6.2937 147 -0.23 74
IV.TERO.HHZ. 2020-04-25T19:54:11.52 0.1 undecidable manual P 77 18.5703 106 0.11 99
IV.GIGS.HHZ. 2020-04-25T19:54:11.83 0.1 undecidable manual P 133 21.3675 102 0 100
IV.CAMP.HHZ. 2020-04-25T19:54:11.75 0.3 undecidable manual S 158 5.8941 149 -0.1 76
IV.T1299.HNZ. 2020-04-25T19:54:10.47 0.1 undecidable manual P 304 9.7791 132 0.25 97
IV.CAMP.HHZ. 2020-04-25T19:54:10.05 0.1 undecidable manual P 158 5.8941 149 0.21 98
IV.SMA1.EHZ. 2020-04-25T19:54:10.08 0.1 undecidable manual P 323 6.2937 147 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:0.7 0.0000427 1.08 AML other m 2020-04-25T19:54:13.93
IV.TERO.HHE. ML:0.9 0.000059 0.38 AML other m 2020-04-25T19:54:14.77
IV.RM33.EHE. ML:0.8 0.00005105 1.16 AML other m 2020-04-25T19:54:14.60
IV.TERO.HHN. ML:0.9 0.00005745 0.68 AML other m 2020-04-25T19:54:14.98
IV.GIGS.HHN. ML:0.7 0.00002995 0.2 AML other m 2020-04-25T19:54:15.36
IV.GIGS.HHE. ML:0.7 0.000027799999999999998 0.1 AML other m 2020-04-25T19:54:15.39
IV.NRCA.HHN. ML:1.2 0.00005415 0.1 AML other m 2020-04-25T19:54:19.41
IV.NRCA.HHE. ML:1.2 0.00005515 0.18 AML other m 2020-04-25T19:54:19.51
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