diff --git a/src/core/index/loop.js b/src/core/index/loop.js
index 6b91b7d5..d0b5ed11 100644
--- a/src/core/index/loop.js
+++ b/src/core/index/loop.js
@@ -100,11 +100,9 @@ setInterval(() => {
 			}
 		}, 500);
 		const _detection_list = Object.keys(detection_list).sort((a, b) => detection_list[a] - detection_list[b]);
-		for (let i = 0; i < Object.keys(detection_box).length; i++) {
-			const key = Object.keys(detection_box)[i];
+		for (const key of Object.keys(detection_box)) {
 			detection_box[key].remove();
 			delete detection_box[key];
-			i--;
 		}
 		if (_detection_list.length) {
 			setTimeout(() => {
@@ -114,8 +112,7 @@ setInterval(() => {
 						continue;
 					}
 					let passed = false;
-					for (let Index = 0; Index < Object.keys(TREM.EQ_list).length; Index++) {
-						const _key = Object.keys(TREM.EQ_list)[Index];
+					for (const _key of Object.keys(TREM.EQ_list)) {
 						const _data = TREM.EQ_list[_key].data;
 						let SKIP = 0;
 						for (let _i = 0; _i < 4; _i++) {
@@ -343,8 +340,9 @@ setInterval(() => {
 	if (drawer_lock) {
 		return;
 	}
+	const list = Object.keys(TREM.EQ_list);
 	drawer_lock = true;
-	if (!Object.keys(TREM.EQ_list).length) {
+	if (!list.length) {
 		eew(false);
 		if (TREM.geojson) {
 			TREM.geojson.remove();
@@ -384,8 +382,7 @@ setInterval(() => {
 		let user_max_intensity = -1;
 		let user_p_wave = 0;
 		let user_s_wave = 0;
-		for (let i = 0; i < Object.keys(TREM.EQ_list).length; i++) {
-			const key = Object.keys(TREM.EQ_list)[i];
+		for (const key of list) {
 			const data = TREM.EQ_list[key].data;
 			if (TREM.EQ_list[key].trem) {
 				if (Now().getTime() - data.time > 240_000) {
@@ -476,9 +473,13 @@ setInterval(() => {
 				}
 				const progress = Math.round(((Now().getTime() - data.time) / 1000 / TREM.EQ_list[key].wave[1].Stime) * 100);
 				const progress_bar = `<div style="border-radius: 5px;background-color: aqua;height: ${progress}%;"></div>`;
+				TREM.EQ_list[key].epicenterTooltip = true;
 				TREM.EQ_list[key].epicenterIcon.bindTooltip(progress_bar, { opacity: 1, permanent: true, direction: "right", offset: [10, 0], className: "progress-tooltip" });
 			} else {
-				TREM.EQ_list[key].epicenterIcon.unbindTooltip();
+				if (TREM.EQ_list[key].epicenterTooltip) {
+					TREM.EQ_list[key].epicenterIcon.unbindTooltip();
+					delete TREM.EQ_list[key].epicenterTooltip;
+				}
 				if (!TREM.EQ_list[key].s_wave) {
 					TREM.EQ_list[key].s_wave = L.circle([data.lat, data.lon], {
 						color     : (data.type == "eew-report") ? "grey" : (data.type == "eew-trem") ? "#73BF00" : (TREM.EQ_list[key].alert) ? "red" : "#FF8000",
@@ -512,8 +513,7 @@ setInterval(() => {
 				if (key == show_eew_id) {
 					TREM.eew_bounds = L.latLngBounds();
 					let _count = 0;
-					for (let _i = 0; _i < Object.keys(TREM.EQ_list[key].loc).length; _i++) {
-						const loc = Object.keys(TREM.EQ_list[key].loc)[_i];
+					for (const loc of Object.keys(TREM.EQ_list[key].loc)) {
 						if (TREM.EQ_list[key].loc[loc].pga > 0.8 && TREM.EQ_list[key].loc[loc].dist < s_dist / 1000) {
 							_count++;
 							const Loc = loc.split(" ");
@@ -629,6 +629,7 @@ setInterval(() => {
 	if (focus_lock && Date.now() - last_map_time < 60000) {
 		return;
 	}
+	const list = Object.keys(TREM.EQ_list);
 	if (last_map_time) {
 		last_map_time = 0;
 		location_button.style.color = "grey";
@@ -638,15 +639,14 @@ setInterval(() => {
 		refresh_report_list();
 	}
 	let nsspe = true;
-	for (let i = 0; i < Object.keys(TREM.EQ_list).length; i++) {
-		const key = Object.keys(TREM.EQ_list)[i];
+	for (const key of list) {
 		if (!TREM.EQ_list[key].trem) {
 			nsspe = false;
 			break;
 		}
 	}
 	if (!TREM.report_time) {
-		if (!Object.keys(TREM.EQ_list).length || nsspe) {
+		if (!list.length || nsspe) {
 			if (TREM.rts_bounds._northEast == undefined) {
 				if (Zoom && now_time() - Zoom_timestamp > 2500) {
 					Zoom = false;
@@ -661,8 +661,7 @@ setInterval(() => {
 		} else {
 			TREM.rts_bounds = L.latLngBounds();
 			const dist_list = [];
-			for (let i = 0; i < Object.keys(TREM.EQ_list).length; i++) {
-				const key = Object.keys(TREM.EQ_list)[i];
+			for (const key of list) {
 				if (TREM.EQ_list[key].trem) {
 					continue;
 				}
diff --git a/src/core/index/rts.js b/src/core/index/rts.js
index a17f9454..89de651c 100644
--- a/src/core/index/rts.js
+++ b/src/core/index/rts.js
@@ -51,8 +51,7 @@ async function get_station_info() {
 			return;
 		}
 		ans = await ans.json();
-		for (let i = 0; i < Object.keys(ans).length; i++) {
-			const uuid = Object.keys(ans)[i];
+		for (const uuid of Object.keys(ans)) {
 			ans[uuid].UUID = uuid;
 			station[uuid.split("-")[2]] = ans[uuid];
 		}
@@ -83,12 +82,10 @@ function on_rts_data(data) {
 	let max_pga = 0;
 	let max_intensity = 0;
 	const detection_location = data.area ?? [];
-	for (let i = 0; i < Object.keys(station_icon).length; i++) {
-		const key = Object.keys(station_icon)[i];
+	for (const key of Object.keys(station_icon)) {
 		if (!data[key] || map_style_v == "3") {
 			station_icon[key].remove();
 			delete station_icon[key];
-			i--;
 		}
 	}
 	let rts_sation_loc = " - - -  - - ";
@@ -96,15 +93,15 @@ function on_rts_data(data) {
 	let rts_sation_intensity = "--";
 	let rts_sation_intensity_number = 0;
 	detection_list = data.box ?? {};
-	for (let i = 0; i < Object.keys(detection_list).length; i++) {
-		const key = Object.keys(detection_list)[i];
+	for (const key of Object.keys(detection_list)) {
 		if (max_intensity < detection_list[key]) {
 			max_intensity = detection_list[key];
 		}
 	}
 
-	for (let i = 0; i < Object.keys(data).length; i++) {
-		const uuid = Object.keys(data)[i];
+	const list = Object.keys(TREM.EQ_list);
+
+	for (const uuid of Object.keys(data)) {
 		if (!station[uuid]) {
 			continue;
 		}
@@ -176,7 +173,7 @@ function on_rts_data(data) {
 			}
 		}
 		if (station_icon[uuid]) {
-			if ((Object.keys(TREM.EQ_list).length && !station_data.alert && !(map_style_v == "2" || map_style_v == "4")) || TREM.report_time) {
+			if ((list.length && !station_data.alert && !(map_style_v == "2" || map_style_v == "4")) || TREM.report_time) {
 				station_icon[uuid].getElement().style.visibility = "hidden";
 			} else {
 				station_icon[uuid].getElement().style.visibility = "";
@@ -304,7 +301,7 @@ function on_rts_data(data) {
 				plugin.emit("trem.rts.pga-low");
 			}
 		}
-		if (!Object.keys(TREM.EQ_list).length) {
+		if (!list.length) {
 			document.getElementById("eew_title_text").innerHTML = (max_intensity >= 4) ? get_lang_string("detection.high") : (max_intensity >= 2) ? get_lang_string("detection.middle") : get_lang_string("detection.low");
 			document.getElementById("eew_box").style.backgroundColor = (max_intensity >= 4) ? "#E80002" : (max_intensity >= 2) ? "#C79A00" : "#149A4C";
 			let _text_1 = "";
@@ -334,12 +331,12 @@ function on_rts_data(data) {
 		rts_show = false;
 		TREM.rts_audio.intensity = -1;
 		TREM.rts_audio.pga = 0;
-		if (!Object.keys(TREM.EQ_list).length) {
+		if (!list.length) {
 			document.getElementById("eew_title_text").innerHTML = get_lang_string("eew.null");
 		}
 		max_intensity_text.innerHTML = "";
 		max_intensity_text.className = "";
-		if (!Object.keys(TREM.EQ_list).length) {
+		if (!list.length) {
 			document.getElementById("eew_box").style.backgroundColor = "#333439";
 			clear_eew_box(detection_location_1, detection_location_2);
 		}
@@ -358,7 +355,7 @@ function on_rts_data(data) {
 		i_list.time = Date.now();
 	}
 	if (i_list.time && Date.now() - i_list.time > 60000) {
-		if (!Object.keys(TREM.EQ_list).length) {
+		if (!list.length) {
 			i_list.data = [];
 		}
 		i_list.time = 0;
@@ -370,8 +367,7 @@ function on_rts_data(data) {
 			const city_I = {};
 			for (let i = 0; i < i_list.data.length; i++) {
 				let loc = "";
-				for (let index = 0; index < Object.keys(station).length; index++) {
-					const uuid = Object.keys(station)[index];
+				for (const uuid of Object.keys(station)) {
 					if (i_list.data[i].uuid.includes(uuid)) {
 						loc = station[uuid].Loc;
 						break;
@@ -385,14 +381,15 @@ function on_rts_data(data) {
 					city_I[_loc] = i_list.data[i].intensity;
 				}
 			}
-			for (let i = 0; i < Object.keys(city_I).length; i++) {
-				if (i > 7) {
-					break;
-				}
-				const city = Object.keys(city_I)[i];
+			const cities = Object.keys(city_I);
+			const maxItems = Math.min(8, cities.length);
+
+			for (let i = 0; i < maxItems; i++) {
+				const city = cities[i];
+				const intensity = int_to_intensity(city_I[city]);
 				const intensity_list_item = document.createElement("intensity_list_item");
 				intensity_list_item.className = "intensity_list_item";
-				intensity_list_item.innerHTML = `<div class="intensity_${city_I[city]} intensity_center" style="font-size: 14px;border-radius: 3px;width: 20%;">${int_to_intensity(city_I[city])}</div><div style="font-size: 14px;display: grid;align-items: center;padding-left: 2px;width: 80%;">${city}</div>`;
+				intensity_list_item.innerHTML = `<div class="intensity_${city_I[city]} intensity_center" style="font-size: 14px; border-radius: 3px; width: 20%;">${intensity}</div><div style="font-size: 14px; display: grid; align-items: center; padding-left: 2px; width: 80%;">${city}</div>`;
 				intensity_list.appendChild(intensity_list_item);
 			}
 		} else {
@@ -403,8 +400,7 @@ function on_rts_data(data) {
 				const intensity_list_item = document.createElement("intensity_list_item");
 				intensity_list_item.className = "intensity_list_item";
 				let loc = "";
-				for (let index = 0; index < Object.keys(station).length; index++) {
-					const uuid = Object.keys(station)[index];
+				for (const uuid of Object.keys(station)) {
 					if (i_list.data[i].uuid.includes(uuid)) {
 						loc = station[uuid].Loc;
 						break;
@@ -420,14 +416,13 @@ function on_rts_data(data) {
 	} else {
 		intensity_list.style.visibility = "hidden";
 	}
-	if (Object.keys(TREM.EQ_list).length || data.Alert) {
+	if (list.length || data.Alert) {
 		show_icon(true);
 	} else if (!TREM.report_time) {
 		show_icon(false);
 	}
 	let level = 0;
-	for (let i = 0; i < Object.keys(level_list).length; i++) {
-		const uuid = Object.keys(level_list)[i];
+	for (const uuid of Object.keys(level_list)) {
 		level += level_list[uuid];
 	}
 	document.getElementById("intensity_level_num").textContent = Math.round(level);