Earthquake with magnitude of ML 0.9 on date 24-03-2021 and time 03:44:00 (Italy) in region 7 km NE Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 7 km NE Amatrice (RI), on

  • 24-03-2021 02:44:00 (UTC)
  • 24-03-2021 03:44:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.665, 13.355 at 14 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 7 2657 2657
Accumoli RI 9 667 3324
Campotosto AQ 12 542 3866
Acquasanta Terme AP 13 2916 6782
Arquata del Tronto AP 13 1178 7960
Cortino TE 13 656 8616
Valle Castellana TE 14 977 9593
Rocca Santa Maria TE 14 537 10130
Crognaleto TE 17 1297 11427
Capitignano AQ 17 665 12092
Cittareale RI 17 482 12574
Montereale AQ 18 2581 15155
Fano Adriano TE 20 296 15451
Montegallo AP 20 523 15974

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Teramo (54892 inhabitants)
35 Km N of L'Aquila (69753 inhabitants)
59 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
74 Km W of Pescara (121014 inhabitants)
75 Km W of Chieti (51815 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
93 Km SE of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 0.9 2021-03-24
02:44:00
42.6653 13.3548 14 2021-03-24
02:55:04
Sala Sismica INGV-Roma 88423531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-24 02:44:00 ± 0.15
Latitude 42.6653 ± 0.0054
Longitude 13.3548 ± 0.0061
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88423531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 583
Semi-minor axis of confidence ellipse (meter) 178
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.33994
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 88423531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-24 02:55:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2021-03-24T02:44:12.45 0.3 undecidable manual S 275 0.3399 97 -0.16 71
IV.NRCA.HHZ. 2021-03-24T02:44:09.63 0.3 undecidable manual S 314 0.2437 101 -0.18 72
IV.LNSS.HHZ. 2021-03-24T02:44:09.63 0.3 undecidable manual S 255 0.2392 102 -0.06 74
IV.MMO1.EHZ. 2021-03-24T02:44:09.58 0.3 undecidable manual S 355 0.2347 102 0.04 74
IV.RM33.HNZ. 2021-03-24T02:44:08.30 0.3 undecidable manual S 214 0.1871 108 0.11 73
IV.TERO.HHZ. 2021-03-24T02:44:07.98 0.3 undecidable manual S 103 0.188 108 -0.22 72
IV.MMO1.EHZ. 2021-03-24T02:44:06.02 0.6 undecidable manual P 355 0.2347 102 0.49 45
IV.GAVE.EHZ. 2021-03-24T02:44:06.96 0.6 undecidable manual P 275 0.3399 97 -0.34 46
IV.T1299.HNZ. 2021-03-24T02:44:05.29 0.3 undecidable manual S 240 0.0621 147 0.11 76
IV.NRCA.HHZ. 2021-03-24T02:44:05.73 0.3 undecidable manual P 314 0.2437 101 0.05 73
IV.LNSS.HHZ. 2021-03-24T02:44:05.70 0.6 undecidable manual P 255 0.2392 102 0.09 48
IV.MTRA.EHZ. 2021-03-24T02:44:05.50 0.3 undecidable manual S 19 0.0962 133 -0.34 71
IV.TERO.HHZ. 2021-03-24T02:44:04.84 0.1 undecidable manual P 103 0.188 108 0.08 98
IV.SMA1.EHZ. 2021-03-24T02:44:04.68 0.3 undecidable manual S 202 0.0378 159 -0.18 74
IV.SMA1.EHZ. 2021-03-24T02:44:03.09 0.1 undecidable manual P 202 0.0378 159 0.26 98
IV.T1299.HNZ. 2021-03-24T02:44:03.36 0.1 undecidable manual P 240 0.0621 147 0.35 96
IV.MTRA.EHZ. 2021-03-24T02:44:03.51 0.1 undecidable manual P 19 0.0962 133 0.12 100
IV.RM33.HNZ. 2021-03-24T02:44:03.81 0.6 undecidable manual P 214 0.1871 108 -0.94 38
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1 0.0001365 0.08 AML other m 2021-03-24T02:44:04.89
IV.SMA1.EHE. ML:0.9 9.33E-5 0.1 AML other m 2021-03-24T02:44:04.94
IV.MTRA.EHE. ML:1 0.00010684846 0.12 AML other m 2021-03-24T02:44:05.63
IV.MTRA.EHN. ML:1 0.00010905754 0.0992 AML other m 2021-03-24T02:44:05.60
IV.NRCA.HHN. ML:0.8 3.298641E-5 0.0784 AML other m 2021-03-24T02:44:10.57
IV.NRCA.HHE. ML:0.8 3.204095E-5 0.1216 AML other m 2021-03-24T02:44:09.91
IV.MTRA.HNE. ML:1 0.000104055285 0.1104 AML other m 2021-03-24T02:44:05.63
IV.MTRA.HNN. ML:1.1 0.00012513594 0.12 AML other m 2021-03-24T02:44:05.60
IV.TERO.HHE. ML:0.5 2.164086E-5 0.0592 AML other m 2021-03-24T02:44:08.07
IV.TERO.HHN. ML:0.8 4.31963775E-5 0.0592 AML other m 2021-03-24T02:44:08.08
IV.TERO.HNE. ML:0.5 1.908452E-5 0.0704 AML other m 2021-03-24T02:44:08.16
IV.TERO.HNN. ML:1 5.8857975E-5 0.0816 AML other m 2021-03-24T02:44:08.08
IV.NRCA.HNE. ML:0.8 3.2977565E-5 0.1296 AML other m 2021-03-24T02:44:09.99
IV.GAVE.EHE. ML:0.8 2.31315685E-5 0.1792 AML other m 2021-03-24T02:44:13.66
IV.GAVE.EHN. ML:0.8 2.13463255E-5 0.12 AML other m 2021-03-24T02:44:13.19
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