A magnitude ML 1.8 earthquake occured in region: 2 km W Grottammare (AP), on
and geographic coordinates (lat, lon) 42.9870, 13.8420 at 22 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
---|---|---|---|---|
Grottammare | AP | 2 | 16006 | 16006 |
Cupra Marittima | AP | 5 | 5398 | 21404 |
Acquaviva Picena | AP | 5 | 3831 | 25235 |
San Benedetto del Tronto | AP | 6 | 47303 | 72538 |
Ripatransone | AP | 7 | 4309 | 76847 |
Monteprandone | AP | 7 | 12655 | 89502 |
Massignano | AP | 8 | 1638 | 91140 |
Montefiore dell'Aso | AP | 10 | 2123 | 93263 |
Campofilone | FM | 11 | 1916 | 95179 |
Monsampolo del Tronto | AP | 11 | 4611 | 99790 |
Spinetoli | AP | 12 | 7215 | 107005 |
Pedaso | FM | 12 | 2800 | 109805 |
Cossignano | AP | 13 | 978 | 110783 |
Martinsicuro | TE | 13 | 16033 | 126816 |
Colonnella | TE | 13 | 3734 | 130550 |
Offida | AP | 13 | 5058 | 135608 |
Castorano | AP | 14 | 2380 | 137988 |
Carassai | AP | 14 | 1100 | 139088 |
Altidona | FM | 14 | 3390 | 142478 |
Moresco | FM | 14 | 598 | 143076 |
Colli del Tronto | AP | 14 | 3668 | 146744 |
Controguerra | TE | 15 | 2436 | 149180 |
Lapedona | FM | 15 | 1166 | 150346 |
Monterubbiano | FM | 15 | 2230 | 152576 |
Castel di Lama | AP | 17 | 8634 | 161210 |
Appignano del Tronto | AP | 17 | 1785 | 162995 |
Petritoli | FM | 18 | 2335 | 165330 |
Corropoli | TE | 18 | 5045 | 170375 |
Alba Adriatica | TE | 18 | 12353 | 182728 |
Ancarano | TE | 19 | 1857 | 184585 |
Monte Vidon Combatte | FM | 19 | 433 | 185018 |
Nereto | TE | 19 | 5242 | 190260 |
Castignano | AP | 19 | 2796 | 193056 |
Torano Nuovo | TE | 19 | 1611 | 194667 |
Montalto delle Marche | AP | 19 | 2122 | 196789 |
Ponzano di Fermo | FM | 20 | 1674 | 198463 |
Ortezzano | FM | 20 | 774 | 199237 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2021-09-23 08:44:05 |
42.9872 | 13.8422 | 22 | 2022-03-30 13:04:08 |
Bollettino Sismico Italiano INGV | 95994061 |
Reviewed Rev100 |
ML 1.6 | 2021-09-23 08:44:05 |
42.9917 | 13.851 | 20 | 2021-09-23 08:54:42 |
Sala Sismica INGV-Roma | 95777221 |
Field | Value |
---|---|
Time (UTC) | 2021-09-23 08:44:05 ± 0.24 |
Latitude | 42.9872 ± 0.0162 |
Longitude | 13.8422 ± 0.0160 |
Depth (km) | 22 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95994061 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1985 |
Semi-minor axis of confidence ellipse (meter) | 688 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 212 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1980.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 283 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.12591 |
Epicentral distance of station farthest from the epicenter (degree) | 0.55488 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 11 |
Type of magnitude | ML |
Reference to an origin | 95994061 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-28 13:57:25 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 95777221 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-23 08:54:42 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-09-23T08:44:25.02 | 0.3 | undecidable | manual | S | 275 | 61.494 | 103 | 0.24 | 67 |
IV.NRCA.HHZ. | 2021-09-23T08:44:24.49 | 0.3 | undecidable | manual | S | 254 | 61.5939 | 103 | -0.3 | 66 |
IV.CSP1.EHZ. | 2021-09-23T08:44:22.60 | 0.6 | undecidable | manual | S | 283 | 53.0025 | 105 | 0.03 | 48 |
IV.TERO.HHZ. | 2021-09-23T08:44:20.76 | 0.3 | undecidable | manual | S | 206 | 44.8218 | 108 | 0.27 | 69 |
IV.MF5.EHZ. | 2021-09-23T08:44:17.39 | 0.3 | undecidable | manual | S | 270 | 31.0467 | 118 | 0.3 | 71 |
IV.FDMO.HHZ. | 2021-09-23T08:44:16.42 | 0.1 | undecidable | manual | P | 275 | 61.494 | 103 | -0.25 | 90 |
IV.NRCA.HHZ. | 2021-09-23T08:44:16.38 | 0.1 | undecidable | manual | P | 254 | 61.5939 | 103 | -0.29 | 89 |
IV.CSP1.EHZ. | 2021-09-23T08:44:15.52 | 0.3 | undecidable | manual | P | 283 | 53.0025 | 105 | 0.13 | 70 |
IV.TERO.HHZ. | 2021-09-23T08:44:14.34 | 0.1 | undecidable | manual | P | 206 | 44.8218 | 108 | 0.15 | 94 |
IV.OFFI.HHZ. | 2021-09-23T08:44:13.39 | 0.3 | undecidable | manual | S | 246 | 13.9749 | 143 | -0.17 | 73 |
IV.MF5.EHZ. | 2021-09-23T08:44:12.40 | 0.1 | undecidable | manual | P | 270 | 31.0467 | 118 | 0.17 | 96 |
IV.OFFI.HHZ. | 2021-09-23T08:44:10.07 | 0.1 | undecidable | manual | P | 246 | 13.9749 | 143 | -0.12 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.OFFI.HHE. | ML:1.8 | 0.000404891745 | 0.2816 | AML | other | m | 2021-09-23T08:44:13.48 |
IV.OFFI.HHN. | ML:1.8 | 0.00037027684999999997 | 1.7376 | AML | other | m | 2021-09-23T08:44:13.04 |
IV.TERO.HHN. | ML:1.6 | 0.00010789873999999999 | 0.16 | AML | other | m | 2021-09-23T08:44:20.86 |
IV.TERO.HNE. | ML:1.8 | 0.0001637652 | 0.16 | AML | other | m | 2021-09-23T08:44:20.92 |
IV.TERO.HHE. | ML:1.8 | 0.00017647801000000003 | 0.3968 | AML | other | m | 2021-09-23T08:44:22.28 |
IV.NRCA.HHN. | ML:1.6 | 0.0000733 | 1.62 | AML | other | m | 2021-09-23T08:44:24.04 |
IV.NRCA.HHE. | ML:1.4 | 0.00005035 | 0.56 | AML | other | m | 2021-09-23T08:44:24.92 |
IV.TERO.HNN. | ML:1.8 | 0.00015553285 | 0.8896 | AML | other | m | 2021-09-23T08:44:22.59 |
IV.CSP1.EHN. | ML:1.8 | 0.0001370789 | 2.9056 | AML | other | m | 2021-09-23T08:44:21.40 |
IV.NRCA.HNN. | ML:2.0 | 0.00017468735000000001 | 1.0432 | AML | other | m | 2021-09-23T08:44:26.12 |
IV.NRCA.HNE. | ML:1.9 | 0.0001331244 | 0.7232 | AML | other | m | 2021-09-23T08:44:30.14 |