A magnitude ML 1.1 earthquake occured in region: 4 km SE Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.8660, 13.1720 at 11 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 |
---|---|---|---|---|
Castelsantangelo sul Nera | MC | 4 | 281 | 281 |
Ussita | MC | 9 | 444 | 725 |
Visso | MC | 10 | 1107 | 1832 |
Norcia | PG | 10 | 4957 | 6789 |
Preci | PG | 11 | 724 | 7513 |
Montemonaco | AP | 13 | 604 | 8117 |
Montegallo | AP | 13 | 523 | 8640 |
Arquata del Tronto | AP | 15 | 1178 | 9818 |
Bolognola | MC | 15 | 142 | 9960 |
Montefortino | FM | 16 | 1178 | 11138 |
Acquacanina | MC | 18 | 121 | 11259 |
Fiastra | MC | 19 | 559 | 11818 |
Amandola | FM | 20 | 3629 | 15447 |
Accumoli | RI | 20 | 667 | 16114 |
Monte Cavallo | MC | 20 | 145 | 16259 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-04-04 08:27:49 |
42.866 | 13.1725 | 11 | 2021-04-04 08:36:30 |
Sala Sismica INGV-Roma | 88762981 |
Field | Value |
---|---|
Time (UTC) | 2021-04-04 08:27:49 ± 0.16 |
Latitude | 42.8660 ± 0.0072 |
Longitude | 13.1725 ± 0.0135 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88762981 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1274 |
Semi-minor axis of confidence ellipse (meter) | 422 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 124 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1270.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 159 |
Number of associated phases, regardless of their use for origin computation | 25 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.22663 |
Number of stations at which the event was observed | 16 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 88762981 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-04 08:36:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PIPA.HHZ. | 2021-04-04T08:29:27.19 | 3.0 | undecidable | manual | Sn | -9.99 | 0 | |||
IV.MSSA.HHZ. | 2021-04-04T08:29:27.37 | 3.0 | undecidable | manual | Sg | 12.1 | 0 | |||
IV.ZEN8.EHZ. | 2021-04-04T08:29:19.87 | 3.0 | undecidable | manual | Sn | -6.05 | 0 | |||
IV.MRVN.HHZ. | 2021-04-04T08:29:07.26 | 3.0 | undecidable | manual | Sg | 1.47 | 0 | |||
IV.CDRU.HHZ. | 2021-04-04T08:29:04.75 | 3.0 | undecidable | manual | Sg | 2.74 | 0 | |||
GU.BHB.HHZ. | 2021-04-04T08:28:55.93 | 3.0 | negative | manual | Pn | -2.28 | 0 | |||
IV.MSSA.HHZ. | 2021-04-04T08:28:39.41 | 3.0 | undecidable | manual | Pg | 3.83 | 0 | |||
IV.ZEN8.EHZ. | 2021-04-04T08:28:35.84 | 3.0 | undecidable | manual | Pn | -5.72 | 0 | |||
IV.PTRJ.HNZ. | 2021-04-04T08:28:33.72 | 3.0 | undecidable | manual | Sg | -2.91 | 0 | |||
IV.AGLI.HHZ. | 2021-04-04T08:28:32.59 | 3.0 | undecidable | manual | Pn | -2.87 | 0 | |||
IV.CDRU.HHZ. | 2021-04-04T08:28:29.11 | 3.0 | undecidable | manual | Pg | 0.98 | 0 | |||
IV.FIR.HHZ. | 2021-04-04T08:28:19.37 | 3.0 | undecidable | manual | Pg | 1.76 | 0 | |||
IV.PTRJ.HNZ. | 2021-04-04T08:28:09.87 | 3.0 | undecidable | manual | Pn | -4 | 0 | |||
IV.VCEL.EHZ. | 2021-04-04T08:28:06.11 | 3.0 | undecidable | manual | Sg | -3.25 | 0 | |||
IV.LRP.EHZ. | 2021-04-04T08:28:01.20 | 3.0 | positive | manual | P | -2.49 | 0 | |||
IV.CSP1.EHZ. | 2021-04-04T08:27:59.10 | 0.3 | undecidable | manual | S | 6 | 25.1526 | 92 | -0.01 | 74 |
IV.FDMO.HHZ. | 2021-04-04T08:27:57.64 | 0.3 | undecidable | manual | S | 340 | 20.1687 | 93 | -0.12 | 73 |
IV.CSP1.EHZ. | 2021-04-04T08:27:55.28 | 0.1 | undecidable | manual | P | 6 | 25.1526 | 92 | 0.05 | 97 |
IV.MMO1.EHZ. | 2021-04-04T08:27:55.62 | 0.3 | undecidable | manual | S | 74 | 13.0758 | 107 | -0.28 | 71 |
IV.NRCA.HHZ. | 2021-04-04T08:27:54.15 | 0.3 | undecidable | manual | S | 233 | 5.994 | 144 | -0.22 | 72 |
IV.FDMO.HHZ. | 2021-04-04T08:27:54.52 | 0.3 | undecidable | manual | P | 340 | 20.1687 | 93 | 0.06 | 73 |
IV.MC2.EHZ. | 2021-04-04T08:27:54.39 | 0.3 | undecidable | manual | S | 15 | 5.1948 | 148 | 0.13 | 74 |
IV.MMO1.EHZ. | 2021-04-04T08:27:53.42 | 0.3 | undecidable | manual | P | 74 | 13.0758 | 107 | 0.04 | 75 |
IV.MC2.EHZ. | 2021-04-04T08:27:52.64 | 0.3 | undecidable | manual | P | 15 | 5.1948 | 148 | 0.21 | 73 |
IV.NRCA.HHZ. | 2021-04-04T08:27:52.59 | 0.1 | undecidable | manual | P | 233 | 5.994 | 144 | 0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.1 | 0.0001825 | 0.48 | AML | other | m | 2021-04-04T08:27:54.37 |
IV.NRCA.HHE. | ML:1.2 | 0.000225 | 1.2 | AML | other | m | 2021-04-04T08:27:54.34 |
IV.NRCA.HNE. | ML:1.2 | 0.00021317985 | 0.16 | AML | other | m | 2021-04-04T08:27:54.34 |
IV.NRCA.HNN. | ML:1.3 | 0.00028133625 | 2.4384 | AML | other | m | 2021-04-04T08:27:55.47 |
IV.FDMO.HHN. | ML:0.8 | 0.000043254559999999995 | 3.3024 | AML | other | m | 2021-04-04T08:28:00.03 |