A magnitude ML 1.0 earthquake occured in region: 3 km N Amatrice (RI), on
and geographic coordinates (lat, lon) 42.6560, 13.2840 at 9 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Amatrice | RI | 3 | 2657 | 2657 |
Accumoli | RI | 5 | 667 | 3324 |
Cittareale | RI | 11 | 482 | 3806 |
Campotosto | AQ | 13 | 542 | 4348 |
Arquata del Tronto | AP | 13 | 1178 | 5526 |
Montereale | AQ | 15 | 2581 | 8107 |
Capitignano | AQ | 15 | 665 | 8772 |
Acquasanta Terme | AP | 16 | 2916 | 11688 |
Cortino | TE | 19 | 656 | 12344 |
Valle Castellana | TE | 20 | 977 | 13321 |
Crognaleto | TE | 20 | 1297 | 14618 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-08-08 22:40:56 |
42.6562 | 13.2845 | 9 | 2021-08-08 22:46:15 |
Sala Sismica INGV-Roma | 93862021 |
Field | Value |
---|---|
Time (UTC) | 2021-08-08 22:40:56 ± 0.08 |
Latitude | 42.6562 ± 0.0036 |
Longitude | 13.2845 ± 0.0049 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 93862021 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 369 |
Semi-minor axis of confidence ellipse (meter) | 336 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 58 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 370.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 71 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.02158 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40649 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 93862021 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-08 22:46:15 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-08-08T22:41:12.22 | 0.6 | undecidable | manual | S | 339 | 45.1215 | 50 | 0.21 | 45 |
IV.TERO.HHZ. | 2021-08-08T22:41:06.21 | 0.3 | undecidable | manual | S | 98 | 26.3514 | 108 | -0.35 | 68 |
IV.FDMO.HHZ. | 2021-08-08T22:41:05.55 | 0.1 | undecidable | manual | P | 339 | 45.1215 | 50 | -0.1 | 92 |
IV.NRCA.HHZ. | 2021-08-08T22:41:05.63 | 0.3 | undecidable | manual | S | 325 | 24.0537 | 110 | -0.19 | 71 |
IV.LNSS.HNE. | 2021-08-08T22:41:04.72 | 0.6 | undecidable | manual | S | 254 | 20.7681 | 112 | -0.04 | 49 |
IV.RM33.EHZ. | 2021-08-08T22:41:03.60 | 0.6 | undecidable | manual | S | 199 | 17.2716 | 116 | -0.05 | 49 |
IV.NRCA.HHZ. | 2021-08-08T22:41:02.05 | 0.1 | positive | manual | P | 325 | 24.0537 | 110 | -0.03 | 97 |
IV.MTRA.EHZ. | 2021-08-08T22:41:02.95 | 0.6 | undecidable | manual | S | 39 | 14.3745 | 121 | 0.18 | 48 |
IV.TERO.HHZ. | 2021-08-08T22:41:02.40 | 0.1 | undecidable | manual | P | 98 | 26.3514 | 108 | -0.1 | 95 |
IV.RM33.EHZ. | 2021-08-08T22:41:01.09 | 0.6 | undecidable | manual | P | 199 | 17.2716 | 116 | 0.27 | 47 |
IV.LNSS.HNE. | 2021-08-08T22:41:01.38 | 0.6 | undecidable | manual | P | 254 | 20.7681 | 112 | -0.08 | 48 |
IV.MTRA.EHZ. | 2021-08-08T22:41:00.59 | 0.6 | undecidable | manual | P | 39 | 14.3745 | 121 | 0.28 | 47 |
IV.SMA1.EHZ. | 2021-08-08T22:41:00.62 | 0.6 | undecidable | manual | S | 124 | 4.995 | 150 | 0.21 | 48 |
IV.SMA1.EHZ. | 2021-08-08T22:40:59.26 | 0.3 | positive | manual | P | 124 | 4.995 | 150 | 0.31 | 71 |
IV.T1299.EHZ. | 2021-08-08T22:40:59.70 | 0.6 | undecidable | manual | S | 184 | 2.3976 | 164 | -0.35 | 47 |
IV.T1299.EHZ. | 2021-08-08T22:40:58.82 | 0.1 | undecidable | manual | P | 184 | 2.3976 | 164 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHE. | ML:0.0 | 0.0002344445 | 0.2944 | AML | other | m | 2021-08-08T22:41:00.90 |
IV.SMA1.EHN. | ML:0.0 | 0.00044548520000000004 | 0.2816 | AML | other | m | 2021-08-08T22:41:00.86 |
IV.MTRA.HNE. | ML:1.2 | 0.00016825184999999998 | 0.2432 | AML | other | m | 2021-08-08T22:41:03.26 |
IV.MTRA.HNN. | ML:1.1 | 0.00012191248 | 0.2816 | AML | other | m | 2021-08-08T22:41:03.52 |
IV.MTRA.EHE. | ML:1.2 | 0.00015523605000000002 | 0.2176 | AML | other | m | 2021-08-08T22:41:03.38 |
IV.MTRA.EHN. | ML:1.0 | 0.00010682308 | 0.2048 | AML | other | m | 2021-08-08T22:41:03.42 |
IV.RM33.HNE. | ML:1.0 | 0.00008971555500000001 | 0.5504 | AML | other | m | 2021-08-08T22:41:07.58 |
IV.RM33.HNN. | ML:1.0 | 0.00008999867000000001 | 0.6016 | AML | other | m | 2021-08-08T22:41:05.00 |
IV.RM33.EHE. | ML:0.4 | 0.000019871575000000003 | 0.256 | AML | other | m | 2021-08-08T22:41:06.01 |
IV.RM33.EHN. | ML:0.4 | 0.00002722565 | 0.2304 | AML | other | m | 2021-08-08T22:41:04.54 |
IV.NRCA.HNE. | ML:1.2 | 0.00010060269999999999 | 0.5504 | AML | other | m | 2021-08-08T22:41:14.37 |
IV.NRCA.HNN. | ML:1.3 | 0.00013678123 | 0.6144 | AML | other | m | 2021-08-08T22:41:14.80 |
IV.NRCA.HHE. | ML:1.0 | 0.0000705833 | 0.1536 | AML | other | m | 2021-08-08T22:41:06.05 |
IV.NRCA.HHN. | ML:0.9 | 0.000055835344999999994 | 0.1536 | AML | other | m | 2021-08-08T22:41:05.86 |
IV.TERO.HHE. | ML:1.7 | 0.00031129395 | 0.2816 | AML | other | m | 2021-08-08T22:41:03.22 |
IV.TERO.HHN. | ML:0.8 | 0.000034239715000000005 | 0.064 | AML | other | m | 2021-08-08T22:41:06.49 |
IV.TERO.HNE. | ML:1.2 | 0.00008680692500000001 | 0.6656 | AML | other | m | 2021-08-08T22:41:10.37 |
IV.TERO.HNN. | ML:1.2 | 0.0000828775 | 0.9472 | AML | other | m | 2021-08-08T22:41:04.47 |
IV.FDMO.HHE. | ML:0.7 | 0.000013321845 | 1.3184 | AML | other | m | 2021-08-08T22:41:22.21 |
IV.FDMO.HHN. | ML:0.7 | 0.000012905315000000001 | 1.0752 | AML | other | m | 2021-08-08T22:41:05.18 |