Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 23-07-2020 and time 06:59:09 (UTC) in region 5 km NW Campotosto (AQ)

A magnitude ML 1.9 earthquake occured in region: 5 km NW Campotosto (AQ), on

  • 23-07-2020 06:59:09 (UTC)
  • 23-07-2020 08:59:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5810, 13.3180 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 5 542 542
Amatrice RI 6 2657 3199
Capitignano AQ 7 665 3864
Montereale AQ 9 2581 6445
Cittareale RI 14 482 6927
Crognaleto TE 14 1297 8224
Accumoli RI 14 667 8891
Barete AQ 15 737 9628
Cagnano Amiterno AQ 15 1369 10997
Pizzoli AQ 16 4326 15323
Cortino TE 16 656 15979
Borbona RI 17 617 16596
Fano Adriano TE 18 296 16892
Posta RI 19 694 17586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
74 Km W of Chieti (51815 inhabitants)
75 Km W of Pescara (121014 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
96 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 1.9 2020-07-23
06:59:09		 42.5807 13.3178 13 2020-11-19
12:36:54		 Bollettino Sismico Italiano INGV 81299601
Reviewed
Rev100 		ML 1.8 2020-07-23
06:59:09		 42.5807 13.3178 13 2020-07-23
07:25:00		 Sala Sismica INGV-Roma 81268211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-23 06:59:09 ± 0.05
Latitude 42.5807 ± 0.0027
Longitude 13.3178 ± 0.0037
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81299601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 71
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 23
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76442
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 46
Type of magnitude ML
Reference to an origin 81299601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-27 06:12:48

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 81268211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-23 07:25:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.HNZ. 2020-07-23T07:00:08.86 3.0 undecidable manual Sg 3.41 0
IV.CPOZ.HHZ. 2020-07-23T07:00:03.18 3.0 undecidable manual Sn -0.75 0
IV.PE3.EHZ. 2020-07-23T06:59:49.44 3.0 undecidable manual S 0.12 0
IV.MTMR.HNZ. 2020-07-23T06:59:43.16 3.0 undecidable manual Pn 0.16 0
IV.NARO.HHZ. 2020-07-23T06:59:30.87 3.0 positive manual P 0.67 0
IV.ARVD.HHZ. 2020-07-23T06:59:27.87 3.0 positive manual P 0.45 0
IV.CSP1.EHZ. 2020-07-23T06:59:27.88 3.0 undecidable manual S 57.3981 0.97 0
IV.EL6.EHZ. 2020-07-23T06:59:23.95 3.0 negative manual P 84.8484 0.34 0
IV.INTR.HHZ. 2020-07-23T06:59:22.57 3.0 undecidable manual P 79.365 -0.2 0
IV.ASSB.HHZ. 2020-07-23T06:59:22.13 3.0 undecidable manual P 74.1702 0.17 0
IV.MMO1.EHZ. 2020-07-23T06:59:21.16 0.1 undecidable manual S 1 35.3424 96 0.13 93
IV.NRCA.HNZ. 2020-07-23T06:59:20.20 0.1 undecidable manual S 329 32.5452 97 -0.1 93
IV.MOMA.HHZ. 2020-07-23T06:59:20.71 3.0 negative manual P 65.7897 0.04 0
IV.CSP1.EHZ. 2020-07-23T06:59:19.41 3.0 negative manual P 57.3981 0.02 0
IV.CESX.HHZ. 2020-07-23T06:59:19.86 3.0 positive manual P 59.7957 0.11 0
IV.T0110.HHZ. 2020-07-23T06:59:19.04 3.0 positive manual P 54.1014 0.17 0
IV.FDMO.HHZ. 2020-07-23T06:59:18.92 3.0 positive manual P 53.9016 0.07 0
IV.VCEL.EHZ. 2020-07-23T06:59:18.45 3.0 undecidable manual P 47.5191 0.59 0
IV.MF5.EHZ. 2020-07-23T06:59:18.47 3.0 positive manual P 46.62 0.75 0
IV.GIGS.HHZ. 2020-07-23T06:59:18.05 0.3 undecidable manual S 124 25.1526 101 -0.3 69
IV.ARRO.EHZ. 2020-07-23T06:59:17.36 0.3 undecidable manual P 270 45.1215 94 -0.13 68
IV.LNSS.HHZ. 2020-07-23T06:59:17.69 0.1 undecidable manual S 276 22.755 103 -0.03 96
IV.TERO.HNZ. 2020-07-23T06:59:17.84 0.1 undecidable manual S 79 23.8539 102 -0.15 95
IV.FAGN.HHZ. 2020-07-23T06:59:17.56 3.0 negative manual P 41.1255 0.68 0
IV.MTRA.EHZ. 2020-07-23T06:59:16.90 0.1 undecidable manual S 18 20.5683 106 -0.24 93
IV.MC2.EHZ. 2020-07-23T06:59:16.50 0.3 undecidable manual P 344 38.1285 95 0.08 70
IV.MMO1.EHZ. 2020-07-23T06:59:16.07 0.1 undecidable manual P 1 35.3424 96 0.08 93
IV.GAVE.EHZ. 2020-07-23T06:59:16.08 0.3 undecidable manual P 290 36.741 96 -0.12 69
IV.NRCA.HNZ. 2020-07-23T06:59:15.53 0.1 undecidable manual P 329 32.5452 97 -0.04 95
IV.GIGS.HHZ. 2020-07-23T06:59:14.41 0.1 undecidable manual P 124 25.1526 101 -0.03 97
IV.T1299.EHZ. 2020-07-23T06:59:14.02 0.1 undecidable manual S 334 6.5934 147 -0.06 98
IV.CAMP.HHZ. 2020-07-23T06:59:14.42 0.1 undecidable manual S 124 8.9799 137 -0.05 99
IV.LNSS.HHZ. 2020-07-23T06:59:14.16 0.1 undecidable manual P 276 22.755 103 0.08 96
IV.RM33.HNZ. 2020-07-23T06:59:14.81 0.1 undecidable manual S 227 11.5773 127 -0.17 95
IV.TERO.HNZ. 2020-07-23T06:59:14.28 0.1 undecidable manual P 79 23.8539 102 0.05 96
IV.SMA1.EHZ. 2020-07-23T06:59:13.98 0.1 undecidable manual S 15 5.6943 151 0.02 100
IV.MTRA.EHZ. 2020-07-23T06:59:13.78 0.1 undecidable manual P 18 20.5683 106 0.04 97
IV.RM33.HNZ. 2020-07-23T06:59:12.67 0.1 undecidable manual P 227 11.5773 127 0.17 96
IV.SMA1.EHZ. 2020-07-23T06:59:12.15 0.1 undecidable manual P 15 5.6943 151 0.24 95
IV.T1299.EHZ. 2020-07-23T06:59:12.16 0.3 undecidable manual P 334 6.5934 147 0.18 72
IV.CAMP.HHZ. 2020-07-23T06:59:12.42 0.1 undecidable manual P 124 8.9799 137 0.22 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2.3 0.0024249999999999996 0.54 AML other m 2020-07-23T06:59:14.34
IV.SMA1.EHE. ML:2.3 0.00236 0.16 AML other m 2020-07-23T06:59:14.43
IV.CAMP.HHN. ML:1.8 0.0007024999999999999 0.16 AML other m 2020-07-23T06:59:14.53
IV.CAMP.HHE. ML:1.7 0.000611 0.4 AML other m 2020-07-23T06:59:14.49
IV.RM33.EHN. ML:2.0 0.0009690000000000001 0.44 AML other m 2020-07-23T06:59:15.04
IV.RM33.HNN. ML:2.0 0.0009675 1.7 AML other m 2020-07-23T06:59:15.04
IV.RM33.EHE. ML:2.0 0.000985 1.4 AML other m 2020-07-23T06:59:15.10
IV.RM33.HNE. ML:2.0 0.001017 1.4 AML other m 2020-07-23T06:59:15.10
IV.MTRA.HNE. ML:2.2 0.0010350000000000001 0.56 AML other m 2020-07-23T06:59:17.02
IV.MTRA.EHE. ML:2.2 0.000984 0.56 AML other m 2020-07-23T06:59:17.30
IV.MTRA.EHN. ML:2.1 0.000818 0.66 AML other m 2020-07-23T06:59:17.76
IV.MTRA.HNN. ML:2.1 0.000851 0.66 AML other m 2020-07-23T06:59:17.43
IV.TERO.HHN. ML:1.9 0.00041749999999999996 1.6 AML other m 2020-07-23T06:59:17.88
IV.TERO.HHE. ML:1.8 0.000412 1.26 AML other m 2020-07-23T06:59:17.94
IV.LNSS.HHN. ML:1.8 0.000364 1.68 AML other m 2020-07-23T06:59:18.86
IV.LNSS.HHE. ML:1.9 0.0004465 1.54 AML other m 2020-07-23T06:59:18.88
IV.NRCA.HNE. ML:2.4 0.000997 0.16 AML other m 2020-07-23T06:59:20.39
IV.NRCA.HHE. ML:2.4 0.00106 0.16 AML other m 2020-07-23T06:59:20.39
IV.NRCA.HNN. ML:2.1 0.0005775 0.86 AML other m 2020-07-23T06:59:20.92
IV.NRCA.HHN. ML:2.1 0.0005605 0.88 AML other m 2020-07-23T06:59:20.93
IV.GAVE.EHE. ML:1.9 0.000315 1.76 AML other m 2020-07-23T06:59:21.90
IV.GAVE.EHN. ML:1.7 0.000184 0.18 AML other m 2020-07-23T06:59:22.56
IV.ARRO.EHE. ML:1.4 0.0000767 1.26 AML other m 2020-07-23T06:59:24.00
IV.ARRO.EHN. ML:1.4 0.00007785000000000001 0.18 AML other m 2020-07-23T06:59:24.35
IV.FAGN.HHN. ML:1.7 0.00016549999999999998 0.52 AML other m 2020-07-23T06:59:26.34
IV.VCEL.EHN. ML:1.8 0.000193 0.42 AML other m 2020-07-23T06:59:26.68
IV.FAGN.HHE. ML:1.7 0.0001505 0.48 AML other m 2020-07-23T06:59:27.53
IV.FDMO.HHN. ML:1.3 0.00005045 1.52 AML other m 2020-07-23T06:59:27.89
IV.FDMO.HHE. ML:1.3 0.00004385 0.24 AML other m 2020-07-23T06:59:27.95
IV.VCEL.EHE. ML:1.9 0.00020600000000000002 0.52 AML other m 2020-07-23T06:59:28.79
IV.T0110.HHE. ML:1.6 0.00009894999999999999 1.06 AML other m 2020-07-23T06:59:30.01
IV.CESX.HHN. ML:1.3 0.000042999999999999995 0.72 AML other m 2020-07-23T06:59:30.76
IV.MOMA.HHE. ML:1.7 0.00008565000000000001 0.22 AML other m 2020-07-23T06:59:31.40
IV.MOMA.HHN. ML:1.6 0.00008145 0.24 AML other m 2020-07-23T06:59:31.34
IV.NARO.HHE. ML:1.6 0.00002315 0.64 AML other m 2020-07-23T06:59:32.42
IV.ASSB.HHE. ML:1.5 0.00005185 0.66 AML other m 2020-07-23T06:59:32.80
IV.ASSB.HHN. ML:1.6 0.000054600000000000006 1.14 AML other m 2020-07-23T06:59:32.39
IV.T0110.HHN. ML:1.6 0.00008305 0.34 AML other m 2020-07-23T06:59:33.36
IV.CESX.HHE. ML:1.2 0.00003229999999999999 0.42 AML other m 2020-07-23T06:59:38.92
IV.NARO.HHN. ML:1.7 0.000028650000000000002 1.08 AML other m 2020-07-23T06:59:41.01
IV.PE3.EHE. ML:2.7 0.0003165 0.58 AML other m 2020-07-23T06:59:53.15
IV.PE3.EHN. ML:2.7 0.00028849999999999997 0.06 AML other m 2020-07-23T06:59:55.31
IV.MTMR.EHN. ML:4.7 0.011054999999999999 1.58 AML other m 2020-07-23T06:59:56.13
IV.MTMR.EHE. ML:4.1 0.002615 1.58 AML other m 2020-07-23T06:59:56.97
IV.CPOZ.HHN. ML:3.5 0.0009375 0.94 AML other m 2020-07-23T07:00:22.36
IV.CPOZ.HHE. ML:3.8 0.00171 0.92 AML other m 2020-07-23T07:00:36.51
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