Earthquake with magnitude of ML 1.3 on date 22-08-2020 and time 13:01:29 (UTC) in region Cittareale (RI)

A magnitude ML 1.3 earthquake occured in region: Cittareale (RI), on

  • 22-08-2020 13:01:29 (UTC)
  • 22-08-2020 15:01:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.16 at 13 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
Cittareale RI 0 482 482
Amatrice RI 11 2657 3139
Accumoli RI 11 667 3806
Posta RI 12 694 4500
Borbona RI 12 617 5117
Montereale AQ 13 2581 7698
Capitignano AQ 16 665 8363
Cascia PG 16 3217 11580
Leonessa RI 17 2435 14015
Monteleone di Spoleto PG 17 599 14614
Campotosto AQ 19 542 15156
Cagnano Amiterno AQ 19 1369 16525
Norcia PG 20 4957 21482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
43 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
88 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
98 Km NE of Roma (2864731 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2020-08-22
13:01:29
42.62 13.16 13 2020-08-22
13:11:35
Sala Sismica INGV-Roma 82234071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-22 13:01:29 ± 0.06
Latitude 42.62 ± 0.00
Longitude 13.16 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82234071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47214
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.5
Num. used stations 12
Type of magnitude ML
Reference to an origin 82234071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-22 13:11:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-08-22T13:01:46.79 0.6 undecidable manual S 4 0.4721 92 0.6 40
IV.VVLD.HHZ. 2020-08-22T13:01:44.84 3.0 undecidable manual P -0.6 0
IV.FDMO.HHZ. 2020-08-22T13:01:44.65 0.3 undecidable manual S 353 0.4191 93 0.03 70
IV.FIAM.HHZ. 2020-08-22T13:01:42.69 0.6 undecidable manual S 185 0.3534 93 0 48
IV.ARRO.EHZ. 2020-08-22T13:01:41.06 0.6 undecidable manual S 262 0.2932 95 0.16 47
IV.MC2.EHZ. 2020-08-22T13:01:41.22 1.0 undecidable manual S 4 0.2914 95 0.38 22
IV.MMO1.EHZ. 2020-08-22T13:01:41.24 0.6 undecidable manual S 24 0.304 94 0.02 48
IV.CSP1.EHZ. 2020-08-22T13:01:39.33 0.1 undecidable manual P 4 0.4721 92 0.09 92
IV.FDMO.HHZ. 2020-08-22T13:01:38.20 0.1 undecidable manual P 353 0.4191 93 -0.13 93
IV.MTRA.EHZ. 2020-08-22T13:01:38.44 0.6 undecidable manual S 52 0.2203 98 -0.31 46
IV.GAVE.EHZ. 2020-08-22T13:01:38.17 0.6 undecidable manual S 290 0.2077 99 -0.22 47
IV.NRCA.HHZ. 2020-08-22T13:01:38.20 0.6 undecidable manual S 351 0.2158 98 -0.41 46
IV.FIAM.HHZ. 2020-08-22T13:01:37.26 0.6 negative manual P 185 0.3534 93 0.05 48
IV.MMO1.EHZ. 2020-08-22T13:01:36.35 0.1 undecidable manual P 24 0.304 94 -0.02 97
IV.SMA1.EHZ. 2020-08-22T13:01:36.21 0.3 undecidable manual S 86 0.1295 114 0.08 75
IV.ARRO.EHZ. 2020-08-22T13:01:36.10 0.1 undecidable manual P 262 0.2932 95 -0.08 96
IV.MC2.EHZ. 2020-08-22T13:01:36.21 0.1 undecidable manual P 4 0.2914 95 0.06 96
IV.LNSS.HHZ. 2020-08-22T13:01:35.07 0.6 undecidable manual S 259 0.0899 130 -0.08 49
IV.RM33.EHZ. 2020-08-22T13:01:35.70 0.6 undecidable manual S 160 0.1187 118 -0.16 48
IV.T1299.HNZ. 2020-08-22T13:01:35.01 0.3 undecidable manual S 81 0.0908 129 -0.16 73
IV.GAVE.EHZ. 2020-08-22T13:01:34.73 0.3 positive manual P 290 0.2077 99 0 74
IV.NRCA.HHZ. 2020-08-22T13:01:34.74 0.1 positive manual P 351 0.2158 98 -0.12 97
IV.MTRA.EHZ. 2020-08-22T13:01:34.81 0.1 undecidable manual P 52 0.2203 98 -0.14 96
IV.RM33.EHZ. 2020-08-22T13:01:33.35 0.1 undecidable manual P 160 0.1187 118 0.08 100
IV.SMA1.EHZ. 2020-08-22T13:01:33.64 0.1 undecidable manual P 86 0.1295 114 0.21 97
IV.T1299.HNZ. 2020-08-22T13:01:32.99 0.1 undecidable manual P 81 0.0908 129 0.12 100
IV.LNSS.HHZ. 2020-08-22T13:01:32.96 0.1 undecidable manual P 259 0.0899 130 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.8 0.000701 0.34 AML other m 2020-08-22T13:01:35.38
IV.MTRA.EHE. ML:0.9 4.475E-5 0.44 AML other m 2020-08-22T13:01:35.02
IV.LNSS.HHE. ML:2.1 0.001405 0.14 AML other m 2020-08-22T13:01:35.32
IV.GAVE.EHN. ML:1.5 0.0002005 0.52 AML other m 2020-08-22T13:01:38.41
IV.NRCA.HHE. ML:1.9 0.000476 0.14 AML other m 2020-08-22T13:01:38.42
IV.GAVE.EHE. ML:1.6 0.0002635 0.14 AML other m 2020-08-22T13:01:38.51
IV.NRCA.HHN. ML:1.7 0.0002815 0.1 AML other m 2020-08-22T13:01:38.91
IV.MTRA.EHN. ML:0.9 4.65E-5 0.24 AML other m 2020-08-22T13:01:39.43
IV.ARRO.EHE. ML:0.9 3.605E-5 0.62 AML other m 2020-08-22T13:01:41.56
IV.ARRO.EHN. ML:1.1 4.84E-5 0.14 AML other m 2020-08-22T13:01:41.73
IV.FIAM.HHN. ML:0.5 1.095E-5 0.98 AML other m 2020-08-22T13:01:43.65
IV.FIAM.HHE. ML:0.5 1.012E-5 1.42 AML other m 2020-08-22T13:01:43.88
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download