Earthquake with magnitude of ML 0.9 on date 26-03-2020 and time 10:01:20 (UTC) in region 2 km S Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 2 km S Amatrice (RI), on

  • 26-03-2020 10:01:20 (UTC)
  • 26-03-2020 11:01:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.61, 13.28 at 12 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
Amatrice RI 2 2657 2657
Campotosto AQ 9 542 3199
Accumoli RI 10 667 3866
Cittareale RI 10 482 4348
Montereale AQ 10 2581 6929
Capitignano AQ 10 665 7594
Borbona RI 17 617 8211
Crognaleto TE 18 1297 9508
Cagnano Amiterno AQ 18 1369 10877
Barete AQ 18 737 11614
Arquata del Tronto AP 18 1178 12792
Posta RI 18 694 13486
Cortino TE 18 656 14142
Pizzoli AQ 20 4326 18468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of L'Aquila (69753 inhabitants)
35 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
78 Km W of Chieti (51815 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
99 Km E of Viterbo (67173 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
Rev 100 ML 0.9 2020-03-26
10:01:20
42.61 13.28 12 2020-03-26
11:22:03
Sala Sismica INGV-Roma 77588471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-26 10:01:20 ± 0.1
Latitude 42.61 ± 0.01
Longitude 13.28 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77588471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 760
Semi-minor axis of confidence ellipse (meter) 356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 77588471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-26 11:22:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2020-03-26T10:03:10.35 3.0 undecidable manual Sg 23.110001 0
IV.FVI.HHZ. 2020-03-26T10:03:03.22 3.0 undecidable manual Sn 3.61 0
AC.VLO.HHZ. 2020-03-26T10:02:44.55 3.0 undecidable manual Pg 16.040001 0
IV.SALB.HHZ. 2020-03-26T10:02:14.23 3.0 positive manual Pg 7.83 0
GU.CARD.HHZ. 2020-03-26T10:01:51.54 3.0 undecidable manual Pn 0.83 0
IV.CERA.HHZ. 2020-03-26T10:01:33.92 3.0 undecidable manual Pg 0.49 0
IV.MIDA.HHZ. 2020-03-26T10:01:32.72 3.0 undecidable manual P -1.7 0
IV.MC2.EHE. 2020-03-26T10:01:32.60 0.3 undecidable manual S 347 0.3067 93 0.71 62
IV.MCIV.CHZ. 2020-03-26T10:01:32.50 3.0 positive manual Pn -0.36 0
IV.MMO1.EHN. 2020-03-26T10:01:31.40 0.3 undecidable manual S 6 0.2887 93 0.06 73
IV.LNSS.HHZ. 2020-03-26T10:01:30.62 3.0 undecidable manual Sn -0.69 0
IV.GIGS.HHE. 2020-03-26T10:01:30.83 0.3 undecidable manual S 127 0.2653 93 0.18 70
IV.TERO.HHZ. 2020-03-26T10:01:29.86 0.3 undecidable manual S 87 0.2347 94 0.1 72
IV.NRCA.HHN. 2020-03-26T10:01:29.83 0.3 undecidable manual S 331 0.2536 94 -0.49 66
IV.MTRA.EHZ. 2020-03-26T10:01:27.33 0.3 undecidable manual S 30 0.1664 99 -0.4 69
IV.MC2.EHE. 2020-03-26T10:01:27.36 0.3 undecidable manual P 347 0.3067 93 0.36 69
IV.MMO1.EHN. 2020-03-26T10:01:26.66 0.1 undecidable manual P 6 0.2887 93 -0.03 98
IV.RM33.EHZ. 2020-03-26T10:01:26.16 0.3 undecidable manual S 207 0.1151 115 -0.13 74
IV.NRCA.HHN. 2020-03-26T10:01:25.89 0.1 undecidable manual P 331 0.2536 94 -0.2 95
IV.TERO.HHZ. 2020-03-26T10:01:25.97 0.3 undecidable manual P 87 0.2347 94 0.19 71
IV.GIGS.HHE. 2020-03-26T10:01:25.94 0.1 undecidable manual P 127 0.2653 93 -0.35 93
IV.MTRA.EHZ. 2020-03-26T10:01:24.56 0.1 undecidable manual P 30 0.1664 99 -0.04 100
IV.SMA1.EHZ. 2020-03-26T10:01:24.66 0.3 undecidable manual S 64 0.0414 153 -0.05 76
IV.RM33.EHZ. 2020-03-26T10:01:23.87 0.1 undecidable manual P 207 0.1151 115 0.1 100
IV.SMA1.EHZ. 2020-03-26T10:01:23.10 0.1 undecidable manual P 64 0.0414 153 0.25 99
IV.T1299.EHZ. 2020-03-26T10:01:22.68 3.0 undecidable manual S 0
IV.T1299.EHZ. 2020-03-26T10:01:21.96 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.9 8.36944E-5 0.1792 AML other m 2020-03-26T10:01:26.76
IV.RM33.EHN. ML:0.7 4.391001E-5 0.0192 AML other m 2020-03-26T10:01:26.51
IV.MTRA.EHE. ML:1.1 9.016349E-5 0.2816 AML other m 2020-03-26T10:01:28.17
IV.MTRA.EHN. ML:1.1 9.3354325E-5 0.32 AML other m 2020-03-26T10:01:28.17
IV.TERO.HHE. ML:0.4 1.42141055E-5 0.0384 AML other m 2020-03-26T10:01:30.42
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download